Company Index
- H & E Knowles (Lye) Ltd. - Cradley Heath
- H & J Speake Ltd. - Willenhall
- H & K (Industrial Services) Ltd. - Birmingham
- H & R Oakley (Engineering Services) Ltd. - Carshalton
- H Armstrong Ltd. - Carlisle
- H B Jones Engineering Ltd. - Tamworth
- H B Office Services Ltd. - Battle
- H Blackhall Engineering (Scotland) Ltd. - Edinburgh
- H Case & Son (Cradley Heath) Ltd. - Cradley Heath
- H Pontifex & Sons Ltd. - Leeds
- H T C Fastenings Ltd. - St Albans
- H & B Boiler Servicing - Westerham
- H & D Worm Drive Clips (1965) - London
- H & E Engineers (Holdings) Ltd. - Kidlington
- H & H Engineering Blaenavon Ltd. - Pontypool
- H & H Metal Fabrications Ltd. - Willenhall
- H & K Rugby Ltd - Rugby
- H & M Disinfection Systems Ltd. - Northwich
- H & M Plating Co. Ltd. - Redditch
- H & M Services - York
- H & P Polishing - Birmingham
- H & P Precision Uk Ltd. - Lichfield
- H & R Boilercare Ltd. - Hoddesdon
- H & R Fabrications & Finishers Ltd. - Waterlooville
- H & S Aviation Ltd. - Portsmouth
- H & S Europe - Gloucester
- H & S Plumbers Merchants Ltd. - Blackburn
- H & V Commission Services - Galston
- H + L Hydraulic Ltd. - Redditch
- H 4 Marine Ltd - Yelverton
- H A Joinery - Ashton under Lyne
- H and B Pressings - Driffield
- H and B Sensors Ltd - Bognor Regis
- H and C Moore Ltd - Leeds
- H and G Systems Ltd - Broxburn
- H and H Products Ltd - Halesowen
- H and I Engineering Ltd - Annan
- H and M Beaumont Engineering - Driffield
- H and S Engineering - Kings Lynn
- H B Halstead & Sons Ltd. - Preston
- H B Precision Engineers Ltd. - Huddersfield
- H B Humphries & Co. Ltd. - Kettering
- H B Tools (Ormskirk) Ltd. - Ormskirk
- H Beesley Ltd. - Leicester
- H C Hill Ltd. - Beckenham
- H C Holifield (Oxford) Ltd. - Abingdon
- H C Lazell (Lashings) Ltd. - Grays
- H C Turk (Engineering Services) Ltd. - Gravesend
- H C Daly - Brierley Hill
- H C H Engineering - Cradley Heath
- H C M Engineering Ltd. - Stourbridge
- H C S Services - North Shields
- H Cooper and Sons (Bristol) Ltd - Yate
- H D Bearings & Engineering Supplies Ltd. - Airdrie
- H D Simpson & Co.(Polishers) Ltd. - Smethwick
- H D White - Littlehampton
- H E Marfleet - Alford
- H E C (Precision) Ltd. - Southall
- H E S Engineering Services Ltd. - High Peak
- H E S Sales (U K) Ltd. - Rotherham
- H E Woolley Ltd. - Middlesbrough
- H F Bates - London
- H F C (Joiners) Ltd. - Oldham
- H Fereday and Sons Ltd - London
- H G Stephenson Ltd. - Stockport
- H G Trading (Northern) Ltd. - St Helens
- H G Kippax & Sons Ltd. - Huddersfield
- H G Middleton & Sons - Dartmouth
- H G P Precision Ltd. - Wolverhampton
- H Goodwin (Castings) Ltd. - Walsall
- H H Welding - Maryport
- H Hipkiss & Co. Ltd. - Birmingham
- H I E Ltd. - Prestwick
- H I Services Ltd. - Maidstone
- H J Heating and Plumbing - Northwood
- H J Weir Engineering Co. Ltd. - Chepstow
- H Kuhnke Ltd - Romsey
- H L Hazeltine (Aveley) Ltd. - South Ockendon
- H L C Engineering Ltd. - Basildon
- H Lehmann Ltd - Stoke on Trent
- H M & J M Parrott - Bedford
- H M Fabrications Ltd - Bradford
- H M K Technical Services Ltd. - Congleton
- H M Machinery Uk Ltd. - Rochester
- H M P Precision Engineers - Coventry
- H M R Engineering - Clitheroe
- H Malone and Sons Ltd - Newcastle upon Tyne
- H Morby & Sons - Leicester
- H Mullins (Earby) Ltd. - Jarrow
- H Norman - Nottingham
- H O B Ltd - Hamilton
- H P International Ltd. - Rugeley
- H P Card and Son - Bristol
- H P F Energy Services - Wirral
- H P Inman & Co. Ltd. - Burnley
- H P Mouldings Ltd. - Tenbury Wells
- H P W Engineering - Darwen
- H Peel (Patterns & Castings) Ltd. - Camberley
- H Pickup Mechanical & Electrical Services Ltd. - Scarborough
- H R Fire & Safety Ltd. - Leeds
- H R Adcock Ltd. - Loughborough
- H R Engineering - Woodbridge
- H R S Motorcycles - Bristol
- H R S Services Ltd. - Sheffield
- H R Thompson & Sons - Dudley
- H Ripley and Co - Hailsham
- H Ripley and Co - Hastings
- H S Pitt & Co. Ltd. - Halesowen
- H S M (U K) Ltd. - Burntwood
- H S Peplow & Son Ltd. - Leeds
- H S Rowe & Partners Ltd - Ilkeston
- H Sly & Sons - Spalding
- H Snelson Engineers Ltd - Winsford
- H T Fabrications Ltd. - Leicester
- H T Consultants - Aldershot
- H Tipton-Jones & Co. Ltd. - Salford
- H Varley Ltd - Altrincham
- H W Comery Ltd. - Perth
- H W Engineering (Wigan) Ltd. - Wigan
- H W Taroni (Metals) Ltd. - Birmingham
- H W Bell & Co. Ltd. - Sevenoaks
- H W Design Ltd. - Bedford
- H W Ward - Stockport
- H W Webb (Engineers) Ltd. - Bungay
- H W Whiteley Engineering - Halifax
- H Wicks (Lindal) Ltd - Barrow in Furness
- H Woods & Son - Belfast
- H-T Ltd - Portland
- H. Downs & Sons (Huddersfield) Ltd - Huddersfield
- H. J. Enthoven Ltd - Matlock
- H. Williams & Sons Ltd - Hitchin
- H.A.Mason(Metals) Ltd - Brierley Hill
- H.D.Steele & Son (Teville) Ltd - Worthing
- H.M.B. Machinists & Engineers Ltd - Alfreton
- H.S.C Mobility - Hayle
- H.T - Lewes
- H20 Europe Ltd. - London
- HA England (Engineers) Ltd - Bolton
- Haas Automation - Norwich
- Habasit Rossi Ltd - Gearmotors Division - Coventry
- Habgood Engineering Micro Components - Cheltenham
- Habit Diamond - Lichfield
- Habrough Fabrication Welding Services Ltd. - Immingham
- Hacel Lighting Ltd. - Wallsend
- Hackney Christopher - Warrington
- Had-Fab Ltd. - Tranent
- Haddon Craft Forge - Northampton
- Haddon Special Steels Ltd. - Dronfield
- Haden Freeman Ltd - Manchester
- Haden Geoffrey P - Swansea
- Haden Young - Bristol
- Haden Young - Musselburgh
- Hadfield CNC and Electronics Co Ltd - Worksop
- Hadham Ltd. - Bishops Stortford
- Hadleigh Castings Ltd. - Ipswich
- Hadley Industries Holdings Ltd - Smethwick
- Hadlow Joinery - Tonbridge
- Hadrian Farm Services Ltd. - Hexham
- Hadron Engineering Ltd - Mitcheldean
- Haemmerlin Ltd - Dudley
- Haesler Machine Tools - Stevenage
- Haf Powertools Ltd. - Sheffield
- Hafele Ltd - Salford
- Hafele U K Ltd. - Rugby
- Hafod Trailers - Llandysul
- Hag Shutters & Grilles Ltd. - Bristol
- Hagans Leisure Ltd. - Ballyclare
- Hagemeyer Industrial (HCA Barron) - Bletchley
- Hagemeyer Industrial (WF Wades) - Blackburn
- Hagemeyer Industrial (WF Wades) - Canterbury
- Hagemeyer Industrial (WF Wades) - Chandlers Ford
- Hagemeyer Industrial (WF Wades) - Ipswich
- Hagemeyer Industrial (WF Wades) - Manchester
- Hagemeyer Industrial (WF Wades) - Norwich
- Hagemeyer Industrial (WF Wades) - Redditch
- Hagley Engineering Ltd. - Dudley
- Hagley Steel Trading Ltd. - Stourbridge
- Hagon Products Ltd. - Ilford
- Hague Electrical Services Ltd. - Glossop
- Haig Engineering - Southampton
- Haigh & Ellis - Huddersfield
- Haigh Engineering (North West) Ltd. - Liverpool
- Haigh Engineering and Technology Ltd - Cleckheaton
Haigh Engineering Co Ltd - Ross on Wye- Haith Industrial Ltd - Worksop
- Haki Ltd. - Tamworth
- Halco Group Ltd. - Halifax
- Halcrow Water Services Ltd - Chatham
- Haldex Brake Products Ltd. - Redditch
- Haldo Developments Ltd - Bury St Edmunds
- Hale Hamilton (Valves) Ltd - Uxbridge
- Hale Signs - Aylesbury
- Halesowen Business Services Ltd. - Halesowen
- Halesowen Components Ltd. - Halesowen
- Halifax Fan Ltd - Brighouse
- Halifax Land & Water Ltd. - London
- Halifax Process Engineering Ltd. - Halifax
- Halifax Rack and Screw Cutting Co Ltd - Brighouse
- Halifax Sheet Metal & Ventilation Ltd. - Halifax
- Hall S & S - Wakefield
- Hall & Botterill Ltd. - Leeds
- Hall & Cockayne Joinery - Macclesfield
- Hall & Letts Ltd - Blackburn
- Hall & Pickles - Newport
- Hall and Kay Fire Engineering - Manchester
- Hall and Kay Fire Engineering - Windsor
- Hall and Pickles Ltd - Stockport
- Hall Bros (Lifting Gear) Ltd. - Watford
- Hall Harry Joinery Services - High Peak
- Hall Holmes & Co.Ltd - Stockport
- Hall Scrap Metals - West Drayton
- Hallam Pine - Sheffield
- Hallam Polymer Engineering Ltd - Dronfield
- Hallam Steelstock Ltd. - Sheffield
- Hallcalm (UK) Ltd. - Hartlepool
- Hallen Engineering Ltd - Wednesbury
- Hallett D R & M R - Tarporley
- Hallett Recycling Ltd. - Crewkerne
- Halliburton - Aberdeen
- Halligan Associates Ltd. - Birmingham
- Hallite Seals International Ltd - Hampton
- Hallmark Fire Ltd - Rochester
- Hallmark Healy Ltd - Southend on Sea
- Hallmark Kitchens Ltd. - Edenbridge
- Hallmark Tractors (Cubley) Ltd. - Ashbourne
- Hallmason Design Ltd. - Winsford
- Hallrite Precision Engineering - Chesterfield
- Halls Garden Products Ltd. - Aylesford
- Halls Locksmiths Ltd. - Nottingham
- Hallward Tools Ltd. - Stockport
- Hallwood Kitchens & Bedrooms - Carrickfergus
- Halstead Boilers Ltd. - Halstead
- Halstead Plating Services Ltd. - Halstead
- Halston Engineering Ltd. - Dalkeith
- Halton Fabrications Ltd. - Runcorn
- Halton Keith - Chorley
- Halton Products Ltd. - Witham
- Halyard (M & I) Ltd. - Salisbury
- Halyard Fabrications Ltd. - Wimborne
- Ham Baker Ltd - Stoke on Trent
- Ham-Let (U K ) - Fittings & Valves Ltd. - Haywards Heath
- Hamar Ltd - Nottingham
- Hamble Ropes and Rigging Ltd - Southampton
- Hamble Yacht Services Ltd - Southampton
- Hambleton Pine & Cane - York
- Hamer J E - Sowerby Bridge
- Hamer Stevenson Ltd. - Oldham
- Hamersley Europe Pty Ltd. - London
- Hamilton & Croft - Pontefract
- Hamilton and Inches Ltd - Edinburgh
- Hamilton Brimer - Morpeth
- Hamilton Bros (Engineering) Ltd. - Bishopton
- Hamilton Bros Engineering Ltd - Argyll
- Hamilton Clark Ltd. - Preston
- Hamilton Fabrications Ltd. - Manchester
- Hamilton Lichfield Ltd. - Rugeley
- Hamilton Precision Ltd. - Buckingham
- Hamilton Robotics Ltd. - Birmingham
- Hamilton Screen Printing & Signs - Ilford
- Hamilton's Property Ltd - Norwich
- Hamiltons Power Products - Colchester
- Hamlyn Engineering Co Ltd - Hayes
- Hamman Metals Ltd. - Tonbridge
- Hammer & Tongs Wrought Iron Smiths - Tring
- Hammersley's Engineering Services (HES) - Rugeley
- Hammersmith Engineering Ltd. - Bristol
- Hammerstones Ltd. - Elland
- Hammond & Co. Ltd. - Hemel Hempstead
- Hammond and Taylor Superlift Ltd - Grimsby
- Hammonds - Hove
- Hammonds Peter J - Bristol
- Hamon U K Ltd. - Hull
- Hampco Ltd. - Aberdeen
- Hampshire Blind Design Co Ltd - Basingstoke
- Hampshire Commercial Aluminium Systems Ltd. - Fareham
- Hampshire Hose Services Ltd. - Southampton
- Hampshire Metal Craft - Aldershot
- Hampshire Technical Supplies Ltd - Farnborough
- Hampson Aerospace Machining Ltd - Alcester
- Hampson Aerospace Machining Ltd - Leicester
- Hampson Industries Plc - Brierley Hill
- Hampson Precision Automotive ltd - Skelmersdale
- Hampton Steel Ltd. - Wellingborough
- Hamsey Trading Ltd. - Wallington
- Hamworthy Compressor Systems Ltd - Gloucester
- Hamworthy Engineering Ltd - Stockport
- Hamworthy Heating Ltd - Poole
- Hanchett Industrial Products LLP - Haverhill
- Hancox Ltd - Birmingham
- Hand Crafted Pine - Wakefield
- Hand Roller Trucks Ltd - Preston
- Hand S L - Shrewsbury
- Handles & Fittings Ltd. - Hertford
- Handley Steel Ltd. - Tipton
- Handling Concepts Ltd - Bromsgrove
- Handling Design Ltd. - Peterborough
- Handling Techniques Ltd. - Stonehouse
- Handmade Pine Products - Bishops Stortford
- Handon Mosque Funeral Services - London
- Handsworth Precision Tools - Sheffield
- Handtmann Ltd. - Luton
- Handy Engineering Services - Worcester
- Hane Instruments Ltd. - Slough
- Hanford Trailer Spares - Stoke on Trent
- Hang-Ups Accessories Ltd. - Cirencester
- Hanley Motor Body Repairs Ltd. - Middlesbrough
- Hanley Smith Ltd. - Harlow
- Hanman Surface Technology - Stroud
- Hannaford Forensic Services Ltd. - Surbiton
- Hannaford Upright Ltd - Woking
- Hannam Polishing - Attleborough
Hanningfield Process Systems Ltd - Rochford- Hanover Displays Ltd. - Lewes
- Hanratty Bros Ltd - Darlington
- Hans Lingl (U K ) Ltd. - Congleton
- Hansen Transmissions Ltd - Huddersfield
- Hansengroup Ltd - Knutsford
- Hansens Kitchen Equipment Ltd. - London
- Hansgrohe Ltd. - Esher
- Hanshel Seals & Mouldings Ltd. - Gloucester
- Hanson and Pattison - York
- Hanson Engineers - Liversedge
- Hanson Springs Ltd - Rochdale
- Hanson Support Services Ltd. - Scunthorpe
- Hants & Dorset Caravan Centre Ltd. - Waterlooville
- Happy Hedgehog Wrought Ironsmiths Ltd. - Crawley
- Harber Engineering Co. - Dukinfield
- Harbor Precision Engineering Ltd. - Reading
- Harborough Battery Services - Market Harborough
- Harbridge (Sheet Metal) Ltd. - Bristol
- Harbruc Engineering Co Ltd - East Grinstead
- Harco Engineering - Brierley Hill
- Harcombe Engineering Ltd. - Seaton
- Harcourt Automatic Productions (Precision Engineering) Ltd. - Erith
- Harcross Engineering (Barnstaple) Ltd. - Barnstaple
- Hard Anodising Ltd - Kidderminster
- Hard Chrome Plating & Grinding - Newark
- Hardi Ltd. - Rugby
- Hardie Steel Fabrication - Bedford
- Hardinge Machine Tools Ltd - Leicester
- Hardings Machinery Ltd. - Tipton
- Hardmetal Eng (T/u Tungsten Carbide Eng Ltd) - Redruth
- Hardware Design and Engineering - Birmingham
- Hardwick Agricultural Engineers Ltd. - Scarborough
- Hardwick Engineering - Warrington
- Hardwicke Enterprises - Gloucester
- Hardy Advanced Composites - Alnwick
- Hardy Engineering Ltd - Burnham on Crouch
- Hardy Sheet Metal - St Albans
- Hardy UK Ltd - Bootle
- Hardys - Lancing
- Hardys - Newtownards
- Hares of Snape (Holdings) Ltd. - Bedale
- Harford Control Ltd. - Trowbridge
- Harford Manufacturing Ltd. - Norwich
- Hargood Engineers Ltd - Southport
- Hargreaves & Auty - Otley
- Hargreaves and Monkhouse - Skipton
- Hargreaves Foundry Ltd. - Halifax
- Harland Construction Ltd - Scunthorpe
- Harland Machine Systems Ltd - Salford
- Harlech Tool & Engineering Co. Ltd. - Swansea
- Harlequin Drawing and Design Ltd - Northampton
- Harlequin Print Ltd. - Birmingham
- Harlequin Productions - London
- Harley Engineering Ltd. - Huntingdon
- Harley Horse Boxes - Truro
- Harling Engineering Services Ltd. - Lancaster
- Harling Foundries Ltd. - Hastings
- Harlock Joinery Ltd. - Redditch
- Harlow Group Ltd - Harlow
- Harlow Spraytech Ltd - Harlow
- Harlow Springs Ltd - Harlow
- Harman Architectural Ltd - Birmingham
- Harmill Systems Ltd - Leighton Buzzard
- Harmills - Derby
- Harmony Business & Technology Ltd. - Milnthorpe
- Harnam Engineering Works - Hayes
- Harness Engineering Ltd - Chelmsford
- Harold Hayles(Yarmouth I W ) Ltd. - Yarmouth
- Harold Kemp and Co - Liphook
- Haroys - Poole
- Harp Engineering - Smethwick
- Harpbrand Engineers Ltd. - Derby
- Harpenden Engineering Services Ltd - Letchworth Garden City
- Harper & Eede Ltd - Lewes
- Harper and Simmons Ltd. - Redditch
- Harper Engineering Ltd. - Wolverhampton
- Harrier Engineering Ltd. - Scunthorpe
- Harrier Fluid Power Ltd. - Ludlow
- Harrier Pneumatics Ltd - Bristol
- Harrington Fabrications Ltd. - Ware
- Harrington Generators International Ltd. - Matlock
- Harris & Taylor Ltd. - Sheffield
- Harris Beds - Grantham
- Harris Geofferey - Reading
- Harris Graham C - Godalming
- Harris Lord Recruitment Ltd - Horsham
- Harris Michael John - Hayle
- Harris Pipework Fabrications Ltd. - Willenhall
- Harris Pye Marine Ltd. - Barry
- Harris Regrinds - Stevenage
- Harris Repair Consultancy Service Ltd - Coventry
- Harris Slate & Stone (Uk) Ltd - Carmarthen
- Harris Springs Ltd - Reading
- Harris Walton Lifting Gear Ltd - Brierley Hill
- Harrison & Hutchinson Ltd. - Morecambe
- Harrison Castings Ltd - Leicester
- Harrison David K - Liversedge
- Harrison Eastwood - Inverurie
- Harrison Engineering - Clitheroe
- Harrison Fabrication Lifting Ltd - Peterborough
- Harrison JT - York
- Harrison Lubrication Engineering Ltd - Bolton
- Harrison N - Market Rasen
- Harrison Parks Homes - Hartlepool
- Harrison Pine and Interiors - Burton on Trent
- Harrison Saw & Tool Ltd. - Rossendale
Harrison Silverdale Ltd - Sheffield- Harrop Installations - Abingdon
- Harrow Blinds & Curtain Tracks - Harrow
- Harrow Tool Co. Ltd. - London
- Harrwil Engineering Ltd - Egremont
- Harry Dalby Engineering Ltd. - Wigston
- Harry F Rochat Ltd. - Barnet
- Harry Hockly Motorsports Ltd - Newtown
- Harry Levy Amusement Contractor Ltd. - Broadstairs
- Harry Maiden Ltd. - Montrose
- Harry Major Machine-UK Ltd - Sandy
- Harry Marsh (Engineers) Ltd. - Sunderland
- Harry Turnbull Ltd - Hawick
- Harry Warren Construction - Lincoln
- Harsco Track Technologies Ltd. - Nottingham
- Hart Automation Ltd. - Luton
- Hart Door Systems Ltd - Newcastle upon Tyne
- Hart Engineering (Derwentdale Engineering Ltd t/a) - Chester le Street
- Hart M P Agriculture Engineers - Macclesfield
- Hartcrown Ltd - London
- Hartest Precision Instruments - Redhill
- Harthill Developments Ltd. - Sheffield
- Hartle IGE Ltd - Stalybridge
- Hartley Leisure Ltd. - Cramlington
- Hartnoll Ltd. - Watford
- Hartom Fabrications - St Albans
- Hartwood Elite Horse Boxes - Preston
- Harval Engineering - Rossendale
- Harver Packaging Co Ltd - Manchester
- Harvest Pine - Nantwich
- Harvey & Snowdon - Salisbury
- Harvey (Manchester) Ltd. - Manchester
- Harvey Martin J - Liphook
- Harvey's Sewing Machines - Romford
- Harvie Tyres Ltd. - Lytham St Annes
- Harwell Engineering Ltd. - Oldbury
- Harwoods for Steel Ltd. - Waterlooville
- Harwoods of Richmond Ltd. - Richmond
- Hasbury Ltd. - Birmingham
- Haskel Europe Ltd. - Sunderland
- Haskell and Co - Newark
- Haslams Engineering - Wellington
- Hasp (Europe) Ltd. - Edenbridge
- Hassells - Bingley
- Hastech Ltd. - Aberdeen
- Hastings Metal Finishers Ltd. - Hebburn
- Hastings Motor Sheet Metal Works - St Leonards on Sea
- Haswell Associates Ltd. - Chelmsford
- Hatfield Catering Equipment - Chesterfield
- Hathaway M A & C E - Verwood
- Hathaway Systems Uk Group Ltd. - Belfast
- Hatherley Commercial Services Ltd - Newark
- Hathern Forge - Loughborough
- Hatton Pine Barn - Warwick
- Hatz Great Britain Ltd. - Hinckley
- Haulotte U K Ltd. - Telford
- Hausherr U K Ltd - Chesterfield
- Havant Sheet Metal Co. Ltd. - Havant
- Haven Interiors - Birmingham
- Haven Laser Engraving and Monumental Stonework - Swansea
- Haverfordwest Tyre and Exhaust Centre - Haverfordwest
- Havering Engineering Supplies Ltd - Dagenham
- Haverscroft Pine - Attleborough
- Hawes Engineering - Belvedere
- Hawes Ronald & Margaret - Bracknell
- Hawk Engineering Ltd. - Warwick
- Hawk Fasteners Ltd. - Middlesbrough
- Hawk Precision - Crewe
- Hawk Structures (Southern) Ltd. - Salisbury
- Hawker Pacific Aerospace Ltd. - Hayes
- Hawkes Technical Ltd - Wellingborough
- Hawkesley Engineering Ltd. - Birmingham
- Hawkins & Youle Ltd. - Bristol
- Hawkins Insulation Ltd. - Bristol
- Hawkins Steel Consultants - Brierley Hill
- Hawkmoor Ltd - Exeter
- Hawksley and Sons Ltd. - Lancing
- Hawley Engineering - Liverpool
- Haworth Castings Ltd. - Romsey
- Hawthorn Blinds - Guisborough
- Hawthorn Metals - Irvine
- Hay Engineering Ltd - Gosport
- Hay Metal Craft - Houghton le Spring
- Hay-Tech Precision Engineering - Bracknell
- Haycock and Hague (Pipework) Ltd - Selby
- Haycock And Hague Pipework Systems Ltd - Selby
- Hayden Plastics Ltd - Maidenhead
- Haydn Morris Alloys Ltd. - Sheffield
- Haydn Powell B C D Ltd. - Pontypool
- Haydon Marketing Ltd. - Droitwich
- Haydon Tool Co - Hailsham
- Hayes Engineering Services Ltd. - Cardiff
- Hayes Fabrications Ltd. - Uttoxeter
- Hayfield Engineering Ltd. - Wolverhampton
- Hayles Pressings Ltd. - Stockport
- Hayley East Anglia - Kings Lynn
- Hayley Group plc - Halesowen
- Hayley Technical - Bolton
- Hayley Wales - Newport (Gwent)
- Hayloft Woodwork - London
- Haynes Agricultural Ltd. - Ashford
- Hays Secure Destruction - Sheffield
- Hayssensandiacre Europe Ltd - Nottingham
- Hayter Engineering - Romsey
- Hayter Ltd. - Bishops Stortford
- Hayward & Cook Ltd. - Birmingham
- Hayward Carey & Vinden - Bicester
- Hayward Mills Associates - Nottingham
- Hayward Perry - Folkestone
- Hayward Tyler Group Ltd. - Luton
- Haywards Property Services (Kennedy Haywards) Ltd. - Brentwood
- Haywood Engineering Services - Stafford
- Hazel Moore Artist Blacksmiths - Chippenham
- Hazlemere Window Co. Ltd. - High Wycombe
- Hb Aluminium Fabrications Ltd. - Leeds
- HBC Engineering Solutions Ltd - Sheerness
- HBM (UK) Ltd - Harrow
- HC Fabrications Ltd - Newcastle upon Tyne
- HCL Safety Ltd (Mansafe Installers) West London - Brentford
- Hcm (South Wales) Ltd. - Neath
- HD Collins Ltd - Waltham Cross
- HE and BS Benson Ltd - Newmarket
- HE Butters and Co - Newcastle under Lyme
- HE Savill - Scarborough
- He-Man Dual Controls Ltd. - Southampton
- Head Gerald - Farnham
- Head Mann Associates Ltd. - Leamington Spa
- Head Start Team Events Ltd. - Horley
- Headland Engineering Developments Ltd - West Bromwich
- Headset Services Ltd - Shoreham by Sea
- Heald Ltd - Hornsea
- Healey & Sprowson Ltd. - Stockport
- Health Safety and Engineering Consultants Ltd - Ashby de la Zouch
- Healthcheck Services Ltd. - Rochester
- Heap & Preece - Barnoldswick
- Heap and Digby Ltd - Oxted
- Heap and Partners Ltd - Manchester
- Heap and Partners Ltd - Wirral
- Heap Dawson Ltd / Heap Economiser Ltd - Rochdale
- Heaps Arnold and Heaps Ltd - Rotherham
- Heard G E & Sons - Portsmouth
- Hearl Heaton Ltd - Liversedge
- Heart of England Limited - Birmingham
- Heartbeat Manufacturing Co (Redditch) Ltd - Redditch
- Heartlands Extrusion Forge Ltd. - Birmingham
- Heasman & Sadler Ltd. - Faringdon
- Heason Technology Ltd - Horsham
- Heat & Control Pty Ltd. - Livingston
- Heat & Power Services Ltd. - Hull
- Heat Fabrications Ltd. - Ossett
- Heat Plant Services - Bracknell
- Heat Store & Advent - Bristol
- Heat Trace (Uk) Ltd. - Sunderland
- Heat Trace Northern - Carnforth
- Heat Transfer Systems Ltd - Buxton
- Heat Treat Services (A Division of ALMOR Ltd) - Nottingham
- Heat Treatment 2000 Ltd. - West Bromwich
- Heat Treatments (Northampton) Ltd. - Northampton
- Heatcare - Sutton
- Heath Bathrooms Ltd. - Burgess Hill
- Heath End Engineering - High Wycombe
- Heath Engineering Ltd. - Widnes
- Heath Filtration Ltd - Stoke on Trent
- Heath Tecna - Camberley
- Heatherside Engineering Ltd - Arlesey
- Heathmere (U K) Ltd. - Haywards Heath
- Heathrow Fasteners Ltd. - Feltham
- Heathyards Engineering Co. Ltd. - Walsall
- Heating and Plumbing Maintenance - Colchester
- Heating and Ventilating Contractors Association - London
- Heating Maintenance - Bedford
- Heating Services (North West) Ltd. - St Helens
- Heating Spares Specialists Ltd - Poole
- Heating Systems & Modifications Ltd. - Wokingham
- Heating World Ltd - Birmingham
- Heaton Green Dust Control Ltd. - Batley
- Heatons Engineering Ltd. - Preston
- Heatons Mechanical Ltd - Stockport
- Heatrek Refractories Ltd. - Skelmersdale
- Heatric Ltd - Poole
- Heavey & Co. (Engineers) Ltd. - Manchester
- Heavyparts Hydraulics Ltd - Rochdale
- Heavystrike Ltd. - Leeds
- Hector Miller - London
- Hector Moore Ltd. - Keighley
- Hedinair Ovens Ltd. - Wickford
- Hedley (Engineering Services) Ltd. - South Shields
- Hedley Hydraulics Ltd. - Wakefield
- Hedley Interior of Prestatyn - Prestatyn
- Hedley Walker (UK) Ltd - Bradford
- Heeley Stairparts Ltd - Sheffield
- Heelman Ltd. - Ludlow
- Heerema Hartlepool Ltd. - Hartlepool
- Hegarty's (Fitted Furniture) Ltd. - Castlederg
- Heico Fasteners UK Ltd - Rayleigh
- Heidenhain (GB) Ltd - Burgess Hill
- Heightec Group The - Kendal
- Heights (U K ) Ltd. - Halifax
- Heil-Europe Ltd. - Dunfermline
- Heinrich Eibach Gmbh - Leicester
- Heinrich Georg UK Ltd - Wolverhampton
- Heitz Engineering Ltd. - Dereham
- Helapet Ltd - Dunstable
- Helbar Automation Ltd - Hockley
- Heldite Ltd. - Hounslow
- Hele Bay Precision Engineering Co Ltd - Barnstaple
- Helical Components (Coventry) Ltd. - Coventry
- Helical Technology Ltd. - Lytham St Annes
- Helicentre Blackpool Ltd - Blackpool
- Helifix Ltd. - London
- Helios Precision Engineering - Hartlepool
- Helipebs Controls Ltd. - Gloucester
- Helispares Ltd. - Andover
- Helitechnique International Ltd - Stratford upon Avon
- Helitune Ltd. - Torrington
- Helix Multi Professional Services - Reading
- Hella Ltd. - Banbury
- Heller Machine Tools Holdings Ltd. - Redditch
- Hellier Performance Ltd - Waltham Abbey
- Hellings Fabrications Ltd. - Margate
- Hellma UK Ltd - Southend on Sea
- Helmrick Engineers Ltd. - Dewsbury
- Helmsman (WB Bawn and Co Ltd) - Bury St Edmunds
- Helpline Metal Services - Harpenden
- Helston Engineering Ltd. - Walsall
- Hemco Power and Control Systems Ltd - Eastleigh
- Hemel Plumbing & Building Supplies Ltd. - Hemel Hempstead
- Hemel Tooling & Pressings Ltd. - Hemel Hempstead
- Hemlock Engineering Ltd - Nottingham
- Hemming Engineering - Bucknell
- Hemmings & Cook - Birkenhead
- Hempel Special Metals Ltd - Wokingham
- Hempel Wire Ltd. - Rotherham
- Hempstead & Johnson Ltd. - High Wycombe
- Hemroe Joinery - Sutton Coldfield
- Hemsec Manufacturing Ltd. - Prescot
- Henco Heating Ltd. - Watford
- Henderson Care - Dundee
- Henderson Engineering (North East) Ltd - Stockton on Tees
- Henderson Engineering Ltd - Manchester
- Henderson Fabrication - St Andrews
- Henderson Fabrications - Northampton
- Henderson Fitted Furniture Ltd. - Hexham
- Henderson Hardware Ltd. - Grays
- Henderson Kerr Ltd. - Bellshill
- Henderson Mines Research Ltd - Helston
- Henderson TS and Co - Hereford
- Henderson Warnock Ltd. - Glasgow
- Hendrick Industrial Equipment Ltd. - Redditch
- Hendricks Lintels and Heavyside Ltd - Oldham
- Hendrickson Europe Ltd. - Northampton
- Hendry - Ashington
- Hendry Hydraulics Ltd. - Elgin
- Hengbays Ltd - Keighley
- Hengelmolen Engineering Ltd. - Tipton
- Henkel Surface Technologies - Milton Keynes
- Henley Forklift Group (N I ) Ltd. - Lisburn
- Hennig (UK) Ltd - Coventry
- Henor Engineering - Coventry
- Henri Picard and Frere Ltd - Dorking
- Henrob Ltd. - Deeside
- Henry Fleetwood and Sons Ltd - Fochabers
- Henry Gallacher Gasketline Ltd - Stockton on Tees
- Henry Harrower - Haddington
- Henry IF (Design) Ltd - Aberdeen
- Henry Lewis & Son (Wire Workers) Ltd. - Bradford
- Henry M Brand - Dundee
- Henry Mills Ltd - Birmingham
- Henry Orchard & Sons - Par
- Henry Pels Ltd - Walton on Thames
- Henry R Ayton Ltd - Belfast
- Henry Smith (Constructional Engineers) Ltd. - Winsford
- Henry Taylor (Tools) Ltd. - Sheffield
- Henry Technologies Ltd. - Glasgow
- Henry Williams Ltd - Darlington
- Henry's - Ashbourne
- Henrys Electronics Ltd - London
- Henshaw Engineering - Leeds
- Henshaw Manufacturing Co. (Birmingham) Ltd. - Birmingham
- Henshaw Metal Fabrications - Nottingham
- Henshaw Reginald A - Pulborough
- HepcoMotion - Tiverton
- Hepworth Engineering Ltd - Diss
- Heraeus Noblelight Ltd - Neston
- Herald Printshop - Orkney
- Herbert Direct Ltd - Horsham
- Herbert Fairey & Son Ltd. - Sheffield
- Herbert Fell - Bury
- Herbert Group Ltd - Haverhill
- Herbert Henry - Royston
- Herbert Paul Engineering - Fleet
- Herbert Tooling Ltd - Coventry
- Herbst Machinery - Omagh
- Hereford Galvanizers Ltd - Hereford
- Heritage Blinds - Kettering
- Heritage Engineering (Swindon) Ltd - Swindon
- Heritage Iron & Steel - Leamington Spa
- Heritage Joinery - Manchester
- Heritage Motor Works Ltd. - Hook
- Heritage Pine - Warlingham
- Heritage Plates - Banbridge
- Herma UK Ltd - Haverhill
- Hermes Technologie Ltd. - Hastings
- Hermitage Sheet Metal Ltd - Hitchin
- Herondata - Stockton on Tees
- Herongrange Ltd - Northampton
- Heronhurst Holdings Ltd. - Abergavenny
- Herons Signs - Buckingham
- Heronsgate Engineering Ltd - London
- Herrenknecht International Ltd. - Sunderland
- Herron Engineering - Castlewellan
- Hersham Valves Ltd - Arundel
- Herts & Beds Transmissions - Baldock
- Herts Engineering Ltd - Kings Langley
- Herts Heating Ltd - Welwyn Garden City
- Herts Mechanical Handling Services Ltd - Hemel Hempstead
- HERVE Engineering Ltd - Southend on Sea
- Hesco Corrosion Control Products Ltd. - Leeds
- Hescott Engineering Co. Ltd. - Larbert
- Hesflo (Installations) Ltd. - Bristol
- Hetra Services Ltd - St Albans
- Heventech Mechanical Services Ltd. - Ilford
- Heward and Dean (BD) Ltd - Hoddesdon
- Hewaswater Ltd. - St Austell
- Hewden Instant Access - Fareham
- Hewerton Jenkinson Partnership - Stockton on Tees
- Hewigo (U K) Ltd. - Oldbury
- Hewitt and Topham Ltd - Keighley
- Hewitt Fabrications - St Albans
- Hewitt of Butley Mills Ltd. - Woodbridge
- Hewland Engineering Ltd. - Maidenhead
- Hewmor Products Ltd. - Wolverhampton
- Hewpack Packaging Services Ltd. - Peterborough
- Hewson & Turrell Ltd. - Grimsby
- Hexagon Metrology Ltd - Telford
- Hexstone Ltd. - Stafford
- Heypac Ltd. - Aldershot
- Heys Sheet Metal - Burnley
- Heys-Shaw Ltd - Ashton under Lyne
- Heywood and Palmer Engineering Ltd - Ashton under Lyne
- Heywood Joinery - Cambridge
- Heywood Joinery - Newton Abbot
- Heywood Metal Finishers Ltd. - Huddersfield
- Heyworth - Burnley
- Heyworth Textile Machinery - Burnley
- HF Crick (Engineering Supplies) Ltd - London
- HF Bond - Woodbridge
- Hfm Consulting Engineers Ltd. - Manchester
- HG Baker - Willenhall
- HG Rant Ltd - High Wycombe
- HHT (Midlands) Ltd - Wednesbury
- HI Quality Steel Castings Ltd - Chesterfield
- Hi - Tech Windows - Stoke on Trent
- Hi Q Fabrications Ltd. - Bolton
- Hi Tec Joinery - Liverpool
- Hi-Line Services (Lichfield) Ltd - Lichfield
- Hi-Lite Metal Finishing - Birmingham
- Hi-Lo Manufacturing - London
- Hi-Pol Metal Finishers Ltd. - Fareham
- Hi-Power Ltd. - Manchester
- Hi-Press Hydraulics Ltd - High Peak
- Hi-Reach Access - Swindon
- Hi-Shear Holdings Ltd. - Rugby
- Hi-Spec CNC - Darwen
- Hi-Spec Precision Engineering - Oakham
- Hi-Spec Precision Toolmakers Ltd. - Cannock
- Hi-Tec Signs - Newry
- Hi-Tec Welding and Fabrication Services Ltd - Wimborne
- Hi-Tech - Maidstone
- Hi-Tech Boiler Services - London
- Hi-Tech Design Ltd - Waterlooville
- Hi-Tech Engineering (Tilbury) Ltd. - Tilbury
- Hi-Tech Machining Ltd - Halesowen
- Hi-Tech Precision Engineering - Waterlooville
- Hi-Tech Sheet Metal Ltd. - Littlehampton
- Hi-Tek Products Ltd. - Poole
- Hi-Trim Ltd - Stockport
- Hi-Vee Ltd. - Crowborough
- Hi-Way Supplies - Margate
- Hi-Wire Ltd - Castleford
- Hiatco Ltd - Stanley
- Hibbert Engineering Services - Manchester
- Hibberts of Luton Ltd. - Luton
- Hick Lane Bedding Ltd. - Dewsbury
- Hickman Interiors - London
- Hickman Steels International Ltd. - Bridgnorth
- Hicks Metals & Alloys Ltd. - Birmingham
- Hidden Technology International Ltd - Rainham
- Hields CA (Engineers) Ltd - Stockton on Tees
- Hiflex Powerbend - Sunderland
- Higar Engineering Ltd - New Milton
- Higgenson Philip A - Bolton
- Higgins & Hewins Ltd. - Stourbridge
- Higgins Engineering - Magherafelt
- Higgins Engineering Ltd - Reading
- Higgins Joinery - Hove
- High -Tech Processing (U K ) Ltd. - Rushden
- High and Wide - Wallington
- High Class Metal Polishing - Stonehouse
- High Conductivity Alloys Ltd. - Seaford
- High Duty Alloys Ltd. - Redditch
- High Lea (Presteigne) Ltd. - Presteigne
- High Level Fabrications Services - Gateshead
- High Modulus Europe Ltd. - Southampton
- High Peak Remedial Services - Dukinfield
- High Peak Steels Ltd - Glossop
- High Precision Wales Ltd - Pontypridd
- High Pressure Technologies Ltd - Ashton under Lyne
- High Quality Joinery Ltd. - Farnborough
- High Speed and Carbide Ltd - Sheffield
- High Speed Piercing (Holdings) Ltd. - Hoddesdon
- High Speed Tractors Ltd - Manchester
- High Staindrop Forge - Bishop Auckland
- High Tech Tubes Ltd - Byfleet
- High Torque Distribution Ltd - Bellshill
- High Voltage Maintenance Services Ltd. - Dartford
- High-Tech Engineering - Dunstable
- Highbell Ltd. - Wokingham
- Highbridge Caravan Centre Ltd - Highbridge
- Highbridge Turned Parts Ltd. - Harlow
- Highfield Engineering - Hitchin
- Highfield Gear Industries Ltd. - Huddersfield
- Highfield Joinery - Southampton
- Highfields Plant & Engineering Services - Worksop
- Highgrove Heating - Reading
- Highland Access Ltd. - Manchester
- Highland Electroplaters Ltd. - Aberdeen
- Highland Engineering Services (U K) Ltd. - Widnes
- Highland Metals Ltd. - Elgin
- Highland Precision Ltd. - Thurso
- Highland Roller Shutters - Dingwall
- Highland Smiddy Ltd - Inverness
- Highway Supplies (North West) Ltd. - Preston
- Higson Edwards (Steelstock) Ltd - Liverpool
- Hildred Engineering Co Ltd - Nottingham
- Hiley Engineering Co. (Halifax) Ltd. - Halifax
- Hilglaze Polycarbonate Ltd. - St Helens
- Hill Brothers - Dungannon
- Hill Consultants Ltd. - Camberley
- Hill Engineering (Catford) Ltd. - London
- Hill Philip M - Leicester
- Hill Top Sections Ltd - West Bromwich
- Hill Trident - Melton Mowbray
- Hill William - Reading
- Hill's Street Structures - Armagh
- Hill's Welding & Fabrication Ltd - Middlesbrough
- Hillaldam Coburn Ltd. - New Malden
- Hillcliff Tools Ltd - Sheffield
- Hillco Engineering Ltd. - Chelmsford
- Hillcrest Machinery & Engineering (Portchester) Ltd - Fareham
- Hillfoot Steel Group Ltd - Sheffield
- Hillman C & J Joinery - Cradley Heath
- Hillman Engineering - Lydney
- Hillround Ltd. - Reading
- Hills Electrical - Prescot
- Hills Packaging Ltd - Rochdale
- Hillside Adr Ltd. - Northampton
- Hillside Joinery Ltd. - Sheffield
- Hillside Medical Supplies Ltd. - Newark
- Hillson - Walton on Thames
- Hillstreet Construction - Solihull
- Hilltop Engineering - Sheffield
- Hillview Enterprises - Insch
- Hillway Designs Ltd - Louth
- Hilmar Tubes Ltd. - Manchester
- Hilson Moran Partnership - Manchester
- Hilsonic - Wirral
- Hilton Peter Anthony - Wakefield
- Hilton Precision - Trimdon Station
- Hima-Sella Ltd - Stockport
- Himag Solutions Ltd. - Stroud
- Himanet - Mansfield
- Himedica Ltd. - Chester
- Hinchliffe Hydraulics Ltd. - Scunthorpe
- Hinckley Air Conditioning & Refrigeration Ltd. - Leicester
- Hindle Auto Products Ltd - Bradford
- Hindle Cockburns Ltd. - Leeds
- Hindles of Lincoln Ltd. - Lincoln
- Hinsley and Co - Ely
- Hinson Joinery Ltd. - Milton Keynes
- Hinton Palmer Ltd. - Bristol
- Hipperholme Engineering - Cleckheaton
- Hirata Corporation of Europe Ltd - Marlborough
- Hird Fan Systems - Wakefield
- Hire Station - Stoke on Trent
- Hirst Associates - York
- Hirsteel Ltd - Farnborough
- Hirwaun Tubular Products Ltd. - Aberdare
- Hiscock Gerald A - Hook
- Hitachi Power Tools (U K ) Ltd. - Milton Keynes
- Hitchman Desmond J - Neath
- Hitec Engineering (U K) Ltd. - Leicester
- Hitec Laser Ltd. - Ely
- Hitech Engraving Ltd - Corsham
- Hitech Precision Engineering - Nottingham
- Hitek Consultants Ltd - Watford
- Hitherbest Ltd. - Telford
- Hixel Whittington Ltd - Sheffield
- Hj Ceramics Ltd - Brighouse
- HJ Jennings and Co - Ilminster
- HJ Skelton and Co Ltd - Thatcham
- HJW Precision Engineering Ltd - Thetford
- HK Technologies Ltd - Rugby
- Hkb Joinery Ltd. - Pevensey
- HL Campbell (Precision Sheet Metal) Engineering - Lingfield
- HL Smith Transmissions Ltd - Wolverhampton
- HLP Tube Formers Ltd - Caerphilly
- HM Plant - Slough
- HMC-Brauer Ltd - Bletchley
- Hmd Seal/Less Pumps Ltd. - Eastbourne
- HME Supplies - Huntingdon
- HME Technology Ltd - Bromsgrove
- Hmk Ltd - Congleton
- HNC Gears and Manufacturing - Bath
- Hoare Laboratory Engineering Ltd - Sevenoaks
- Hoare Lea - Birmingham
- Hoare Lea - Bristol
- Hoare Lea - London
- Hoare Lea and Partners - Manchester
- Hobbs & Son - Bristol
- Hobbsport Racing Ltd. - Shipley
- Hobby Caravans (U K ) Ltd. - Belper
- Hobby Homes Ltd. - London
- Hobday Ltd. - Birmingham
- Hobson Brian Associates - Cheadle (Cheshire)
- Hobson Industries Ltd - Louth
- Hockley & Dawson - Cranleigh
- Hockley Building Services Ltd. - Birmingham
- Hockley Enterprises - Southend on Sea
- Hockley Pattern and Tool Co Ltd - Halesowen
- Hockley Signs - Brentwood
- Hocklynn Ltd. - Bristol
- Hodder Engineering - Lydney
- Hoddesdon Tool & Engineering Co. Ltd. - Hoddesdon
- Hodge Clemco Ltd - Sheffield
- Hodges Engineering - Ashford
- Hodgins Smith & Partnership - Glasgow
- Hodgkinson Bennis Ltd. - Manchester
- Hodgson & Hodgson Consultancy Division - Ipswich
- Hodgson and Allon - Stanley
- Hodgson and Hodgson Group Ltd - Braintree
- Hodgson Engineering Ltd. - Middlesbrough
- Hodson Engineering - Peterborough
- Hodsons Bloxwich Ltd. - Walsall
- Hoerbiger U K Ltd - Birmingham
- Hoerbiger-Origa Ltd - Gloucester
- Hoesh International Ltd. - Leicester
- Hofbauer (UK) Ltd - Gloucester
- Hogan Machine Services - Torquay
- Hoganas Ltd - Aylesbury
- Hogarth Engineering Ltd. - Bedford
- Hogg Blasting and Finishing Equipment Ltd - Washington
- Hogg Pneumatic Solutions - North Shields
- Hogley Bros - Knottingley
- Hoist & Chute Hire Ltd. - Orpington
- Hoistquip Ltd - Shrewsbury
- Holborne Engineering Ltd. - Shrewsbury
- Holbourne Industrial Plastics Ltd. - Cannock
- Holbro Engineering Ltd. - Fleetwood
- Holbrook Engineering - Crawley
- Holbuck Components Ltd. - Leicester
- Holburn Smithy - Berwick upon Tweed
- Holcombe - Bath
- Hold Engineering Ltd. - Seascale
- Holdbrim Ltd - Bradford
- Holden Aluminium Technologies Ltd - Bromyard
- Holden Engineering (U K) Ltd. - Yeovil
- Holden Refrigeration - Preston
- Holden's C V E - Leyland
- Holder E & Co - Blackpool
- Holdfast Manufacturing Ltd. - Stourbridge
- Holdgate Consulting Ltd. - Bingley
- Holdsworth Packaging - Sheffield
- Holdsworth Ventilations Ltd - Stoke on Trent
- Holdsworth Windows Ltd - Shipston on Stour
- Holdtite (U K) Ltd. - Birmingham
- Holemasters Demtech Ltd - Bolton
- Holemoor Engineering Ltd. - Dudley
- Holfeld Tool and Die - Burton on Trent
- Holford Engineering Ltd. - St Neots
- Holgate Engineering - Keighley
- Hollaender Rainer Ltd - Walsall
- Holland & Holland Ltd. - London
- Holland and Harrison Ltd - Watford
- Holland Bros Engineering Ltd (CES) - Antrim
- Holliday - Carlisle
- Holliday Metals Ltd. - Wigton
- Hollinbrow Precision Products (UK) Ltd - Telford
- Hollinwood Welding and Engineering - Oldham
- Hollographics - Sandown
- Holloway Tool - Birmingham
- Holloway Tool and Presswork - Birmingham
- HolloWrap Ltd - Leicester
- Holly Products - Chorley
- Hollycroft Engineering Ltd. - Hinckley
- Hollygate Fabrications Ltd. - Manchester
- Holmac Engineering Co - Widnes
- Holman & Williams (Packaging) Ltd. - London
- Holman Engineering Co Ltd - Addlestone
- Holmbridge Engineering Co. Ltd. - Halifax
- Holmby Design Ltd - Leamington Spa
- Holme Dodsworth Metals - Manchester
- Holme Hill Wrought Iron Work - Midhurst
- Holme Steel Fabricators Ltd. - Scunthorpe
- Holmes & Pearcey - Basingstoke
- Holmes Catering Equipment Ltd. - York
- Holmes Engineering Ltd. - Sutton
- Holmes Engineering Services - Chester
- Holmes Machine Tools Ltd. - Birmingham
- Holmes Powder Coaters - Leeds
- Holownia M W - Farnborough
- Holroyd Components Ltd - Saffron Walden
- Holroyd Machine Tools & Rotors - Rochdale
- Holsta Office Ltd - Newcastle upon Tyne
- Holt - London
- Holt Baldwin Engineering Co. Ltd. - Dukinfield
- Holt Brothers(Halifax)Ltd - Halifax
- Holt Engineering Services - Trowbridge
- Holt Jcb - Swindon
- Holt JCB Ltd - Avonmouth
- Holt Mobility Centre - Holt
- Holt Springs Ltd - Wirral
- Holtby Williams International - Conwy
- Holtech Engineering - Cannock
- Holtite Ltd. - Cradley Heath
- Holts Conservatories Ltd. - Mold
- Holts Engineering - Manchester
- Holyhead Boatyard Ltd. - Holyhead
- Holywell Metal Products Ltd. - Leicester
- HOLZHER (Special Machines) GB Ltd - Bradford
- Holztechnik Machinery Services Ltd - York
- Homag Ltd - Derby
- Home and Office Fire Extinguishers Ltd - Saffron Walden
- Home Improvement Joinery Midlands Ltd - Halesowen
- Home Kare & Co. - Belfast
- Home Proud/V Croud - Rayleigh
- Home to Home Sunblinds - Hessle
- Home Valley Sheet Metal Ltd - Huddersfield
- Homecrafts (Brigg) Ltd. - Brigg
- Homefair Blinds - Manchester
- Homefair Blinds (UK) Ltd - Middlesbrough
- Homefair Blinds (UK) Ltd - Seaham
- Homefair Blinds Ltd - Bishop Auckland
- Homer Burgess Ltd - Dumfries
- Homerosion Ltd. - Birmingham
- Homestead Caravan Centre Ltd - Clacton on Sea
- Homestyle Blinds - Machynlleth
- Homestyle Interiors - Horncastle
- Homestyle Windows & Conservatories - Eastleigh
- Homewise Windows Ltd. - Leighton Buzzard
- Homewood Joinery - Bedlington
- Homley House - Staines
- Honda Petrol Generators - Gloucester
- Hone-All Precision Ltd - Leighton Buzzard
- Honeyglen Anodising Ltd - Birmingham
- Honeywell - Bristol
- Honeywell Control Systems Ltd - Aberdeen
- Honeywell U K Ltd - Luton
- Hong Wan's Food Supplies Ltd. - London
- Honiton Engineering - Honiton
- Hoogovens Aluminium Building Systems Ltd. - St Helens
- Hook Marine Ltd - Troon
- Hooker Manufacturing - Ipswich
- Hooper Engineering Products Ltd. - Oldbury
- Hooper Ltd. - Huntingdon
- Hooton - Gainsborough
- Hoover Ltd. - Merthyr Tydfil
- Hope Technology - Barnoldswick
- Hopespare Ltd - Hayes
- Hopespare Ltd - Hemel Hempstead
- Hopkins Catering Equipment Ltd - Pudsey
- Hopkins Coats Associates - Newcastle
- Hopkins Recycling Ltd. - Eastleigh
- Hopkins Steel Fabrications - Newtown
- Hopkinson & Allen Co - Sheffield
- Hopkinson and Hopwood Ltd - Oldham
- Hoppe (U K ) Ltd. - Wolverhampton
- Hopton Engineering Ltd. - Willenhall
- Horizon (Reinforcing & Crane Hire) Co. Ltd. - Falkirk
- Horizon Instruments Ltd. - Heathfield
- Horizon Records - Cradley Heath
- Horizon Signs Ltd. - Huddersfield
- Horizon the Conservatory Warehouse - Northampton
- Horizontal Boring Services Ltd - Wigan
- Hormann UK Ltd - Coalville
- Horn Lane Metals - London
- Hornbill Engineering Ltd. - Neath
- Hornchurch Stairs & Joinery - Hornchurch
- Horne Engineering Ltd. - Johnstone
- Horner Components - Lisburn
- Hornmark Ltd - Hexham
- Hornsey Metal Works - London
- Horstman Defence Systems Ltd - Bath
- Horton Automatics Ltd. - Telford
- Horton Light Engineering - Runcorn
- Hosch (GB) Ltd - Stockton on Tees
- Hose Counter Midlands - Coventry
- Hosokawa Micron Ltd - Runcorn
- Hotchkiss Air Supply - Wolverhampton
- Hotchkiss Ltd. - Eastbourne
- Hothouse Product Development Partners - London
- Hotspin Galvanizing Ltd - Liverpool
- Hotta U K Ltd. - Leicester
- Houchin Aerospace - Ashford
- Houghton Greenlees & Associates Ltd. - Clevedon
- Houghton International - Newcastle upon Tyne
- Houghton Trailers and Fabrications - Houghton le Spring
- Houghtons Parkhouse Coachworks Ltd - Milnthorpe
- Hoult Group Services - Skelmersdale
- Hounsell Engineers - Bradford
- Hourcover Ltd. - Littlehampton
- House E House - Leicester
- House of Anderson (1905) Ltd. - Morecambe
- House of Linmar - Birmingham
- Household Bargain Centre - Stoke on Trent
- Household Waste & Recycling Centre - Retford
- Housley & Birks - Heanor
- Houston & Sons Ltd. - Crewe
- Houston's of Cupar Ltd. - Cupar
- Hoval Ltd. - Newark
- Hovercam Ltd - Plymouth
- Hoverdale Ltd - Leicester
- Howard George & Sons - Louth
- Howard & Powell - Skipton
- Howard & Street Engineering - Oldham
- Howard Alan Consulting Engineers - Torquay
- Howard Cole Developments - Peterborough
- Howard Doolan Associates Ltd. - Cardiff
- Howard Engineering Company - Doncaster
- Howard Home Improvements Ltd. - Romford
- Howard Joinery - Wigan
- Howard Lee & Son Ltd - Birmingham
- Howard Ruse Associates Ltd. - London
- Howard Webb - Ware
- Howard Yarnold Ltd. - Birmingham
- Howards Industrial Sewing Machines - Manchester
- Howardson Ltd. - Ashbourne
- Howarth (1985) Ltd - Manchester
- Howarth Associates - Harrogate
- Howarth Sheet Metal & Fabrication Ltd. - Manchester
- Howarth Switchgear Ltd - Glasgow
- Howco Critical Components - Irvine
- Howco Metals Management - Sheffield
- Howden - Renfrew
- Howden Compressors Ltd. - Glasgow
- Howden Electro Heating - Bellshill
- Howden Joinery - Bangor
- Howden S Joinery - Milton Keynes
- Howden Sirocco Group Ltd. - Renfrew
- Howden UK Ltd - Belfast
- Howden UK Ltd - Glasgow
- Howden UK Ltd - Kingswinford
- Howdens Joinery - Fareham
- Howdens Joinery - Maidstone
- Howe Engineering Ltd. - Newport
- Howe Peter John - Shepton Mallet
- Howell Cummings Ltd - Spennymoor
- Howell Tomkins Ltd. - Walsall
- Howells Automotives - Kidderminster
- Howells H & J - Carmarthen
- Howle Holdings Ltd. - Tenbury Wells
- Howley Engineering Ltd. - Warrington
- Howley Timber - Warrington
- Howmet Ltd. - Exeter
- Howorth Air Technology Ltd. - Bolton
- Howse Martin C - Melton Mowbray
- Howth Engineering Ltd. - Cradley Heath
- Hoya Lens U K Ltd. - Wrexham
- Hoyland Fox Ltd - Sheffield
- Hoyle Mill Precision Engineering Ltd. - Barnsley
- Hoyles Pine - Deal
- HPC Gears Ltd - Chesterfield
- HPC Manufacturing Ltd - Chesterfield
- HPC Services Ltd - Ilkeston
- HPE Technologies Ltd - Accrington
- HPEMS Ltd - Dunmow
- HPF Energy Services - Alcester
- Hq Joysticks Ltd. - Peterborough
- Hqc Ltd. - St Helens
- HR International Crushing and Screening Ltd - Ashby de la Zouch
- HR Smith Technical Developments Ltd - Hereford
- HR Textron - Cheltenham
- HRN Tractors Ltd - Insch
- HRS Heat Exchangers Ltd - Watford
- HRS Motorcycles and Accessories - Bath
- HS Jackson and Sons Fencing Ltd - Ashford
- HSB Inspection Quality - Oldham
- HSF Fabrications - Oldham
- HSS Hire - London
- HT Brigham and Co Ltd - Birmingham
- HT Edwards Engineering - Stockport
- HT Products - Hailsham
- HTA Precision Sheet Metal Ltd - Rugby
- HTF Stainless Steel Fabrication Ltd - Derby
- HTS Anodizers Ltd - Aldershot
- Hub Engineering Co Ltd - Stourbridge
- Hub Le Bas - Bilston
- Hubbard Architectural Metalwork Ltd. - Norwich
- Hubbell Ltd - Burton on Trent
- Hubble & Co. Ltd. - Great Yarmouth
- Huber Technology - Chippenham
- Huchkins W M - Benfleet
- Huckerby Royall Systems Ltd - Woking
- Hucknall Sheet Metal Engineering Ltd. - Nottingham
- Huco Lightronic NI Ltd - Londonderry
- Huddersfield Hire Centre Ltd - Huddersfield
- Huddersfield Powder Coating Co Ltd - Huddersfield
- Hudson Engineering (Nailsea) Ltd. - Bristol
- Hudson Hydraulic Engineers Ltd - Poulton le Fylde
- Hudsons of Dudley Ltd. - Brierley Hill
- Hugh K Gillies (Construction Engineering Services) Ltd. - Irvine
- Hugh Logan Plant & Engineering Services Ltd. - Hamilton
- Hugh McManus & Sons Ltd. - Antrim
- Hugh Steeeper - Nottingham
- Hughes Ben (Loughor Foundry) Ltd - Swansea
- Hughes D & E Metal Merchants - Rochdale
- Hughes Engineering Ltd. - Glasgow
- Hughes Engineering Works - Omagh
- Hughes Evans Design Services - Leigh
- Hughes P J - Tipton
- Hughes Pumps Ltd. - Pulborough
- Hughes Refrigeration Ltd. - Grimsby
- Hughes Safety Showers Ltd. - Stockport
- Hulamin UK - Redditch
- Hulbert Engineering Ltd. - Dudley
- Hull Bedrooms Ltd - Hull
- Hull Catering & Shop Equipment Co. Ltd. - Hull
- Hull Mechanical Services Ltd. - Gerrards Cross
- Hulley and Kirkwood Consulting Engineers Ltd - Edinburgh
- Hulley and Kirkwood Consulting Engineers Ltd - Epsom
- Hulley and Kirkwood Consulting Engineers Ltd - Glasgow
- Hullmatic Engineering Co. Ltd. - Colchester
- Hulme Martin Heat Sealers Ltd - Woking
- Humark Engineering - Derby
- Humber Galvanising Ltd - Hull
- Humberside Instruments Ltd - Cleethorpes
- Humberside Lifting Services Ltd. - Scunthorpe
- Humberside Machinery Co. - Hull
- Humberside Paints & Products Ltd. - Scunthorpe
- Humberside Print Equipment Ltd - Brough
- Humidity Control Systems Ltd - Lincoln
- Humphrey Mining Products Ltd - Pontyclun
- Humphreys Signs - Denbigh
- Humphries Ltd. - Barking
- Hunger Hydraulic UK Ltd - Swindon
- Hunprenco Group of Companies - Filey
- Hunslet-Barclay Ltd. - Kilmarnock
- Hunt EM - Kilwinning
- Hunt P & R - Loughborough
- Hunt Thermal Engineering Ltd - Dukinfield
- Hunter Boats Ltd - Rochford
- Hunter Gears Ltd - Blaydon on Tyne
- Huntleigh Akron - Ipswich
- Huntleigh Technology Ltd. - Luton
- Hunton Engineering Ltd - Maidstone
- Hunton Legg Ltd - Ipswich
- Hunts Metals - Hailsham
- Huntstore Storage and Handling Ltd - Uttoxeter
- Hunwick Engineering Ltd. - Halstead
- Hupfield Design - Hereford
- Huppert Engineering - Solihull
- Hurfar Engineering Ltd - Bournemouth
- Hurley Palmer Flatt Ltd. - Purley
- Hurricane Architectual Ltd - Washington
- Hurst Plastics Ltd. - Hull
- Husco International Ltd. - Runcorn
- Hussey & Greenhow Plant Ltd. - Melksham
- Hussmann Europe Ltd - Glasgow
- Hutchinson and Dibley Ltd - Bourne End
- Hutchinson and Mudd - Ripon
- Hutchinson Engineering Ltd. - Widnes
- Hutchinson Engineering Services Ltd - Newark
- Hutchinsons Ltd - Ledbury
- Huttenes-Albertus U K Ltd. - Dudley
- Hutton Mechanical & Electrical Services Ltd. - Belfast
- Huxley Bertram Engineering Ltd - Cambridge
- HV Wooding Ltd - Hythe
- HW Plastics - Stoke on Trent
- HW Signs Ltd - Leeds
- Hwf Ltd. - Batley
- Hwh Machine Tools Ltd. - Coventry
- Hy-Pro, Hydraulic Projects Ltd - Dawlish
- Hy-Ram Engineering Co. Ltd. - Mansfield
- Hy-Save (UK) Ltd - Bath
- Hy-Tek (Engineering Services) Ltd. - Great Yarmouth
- Hy-Ten Ltd - Bootle
- Hy-Ten Ltd - Newark
- Hy-Ten Reinforcement Co - Richmond on Thames
- Hyams Autolift - Arundel
- Hyatt Christopher - Cardiff
- Hybrid Motor Cycles - Rickmansworth
- Hybrid Technology Services Ltd - Yate
- Hycon Ltd - Reading
- Hycrome (Europe) Ltd. - Burnley
- Hydac Technology Ltd - Chipping Norton
- Hyde Central Services Ltd - Dukinfield
- Hyde Details Ltd - Dukinfield
- Hyde Group Ltd - Dukinfield
- Hyde Tool Co. Ltd. - Dukinfield
- Hyder Consulting Ltd - Guildford
- Hyder Consulting Ltd - Plymouth
- Hydra Clarkson Ltd - Sheffield
- Hydra Mining Tools International Ltd - Rotherham
- Hydrafeed Ltd - Bletchley
- Hydrafit Ltd - Wolverhampton
- Hydraforce Hydraulics Ltd. - Birmingham
- Hydrainer Pumps Ltd - Sheffield
- Hydrair - Droitwich
- Hydraline Engineering Ltd - Cannock
- Hydram Engineering Ltd - Durham
- Hydramatic Engineering (U K) Ltd - Doncaster
- Hydrapower Dynamics Ltd. - Birmingham
- Hydraproducts Ltd - Gloucester
- Hydrastore Ltd. - Doncaster
- Hydratight Operations Ltd - Morpeth
- Hydratron Ltd. - Altrincham
- Hydraulic & Engineering Services Ltd. - Rochester
- Hydraulic & Pneumatic Power Services Ltd. - Leven
- Hydraulic & Pneumatic Services Ltd. - Preston
- Hydraulic and Offshore Supplies Ltd - Sunderland
- Hydraulic Components - Redhill
- Hydraulic Components & Systems Ltd. - Hemel Hempstead
- Hydraulic Die Casting Services - Birmingham
- Hydraulic Equipment Supermarkets - Chester le Street
- Hydraulic Equipment Supermarkets Ltd - Birmingham
- Hydraulic Equipment Supermarkets Ltd - Gloucester
- Hydraulic Equipment Supermarkets Ltd - Leeds
- Hydraulic Mobile Services (Merseyside) Ltd. - Runcorn
- Hydraulic Plant Services Ltd - East Grinstead
- Hydraulic Plant Spares Ltd - Poole
- Hydraulic Power Services - Bolton
- Hydraulic Pressure Services Ltd - Leeds
- Hydraulic Pumps UK Ltd - Rotherham
- Hydraulic Shop - Stowmarket
- Hydraulic Spares & Services Ltd. - Wolverhampton
- Hydraulic Supplies Ltd - Wednesbury
- Hydraulic System Products Ltd. - Wakefield
- Hydraulic Systems (Stoke-on-Trent) Ltd. - Congleton
- Hydraulic Technical Services (Consultants) Ltd. - Slough
- Hydraulic Transmission Services Ltd - Leeds
- Hydraulics - Northampton
- Hydraulics Direct From Chris Samson - Chelmsford
- Hydravalve Ltd - Willenhall
- Hydrax Ltd. - Bridgwater
- Hydro Aluminium Deeside Ltd. - Wrexham
- Hydro Aluminium Extrusion Ltd - Caerphilly
- Hydro Aluminium Extrusion Ltd - Chester le Street
- Hydro Ellay Enfield Ltd - Workington
- Hydro International - Clevedon
- Hydroflow Europe Ltd - Pulborough
- Hydrojet Precision Engineering - Bromsgrove
- Hydromar Ltd - Sandown
- Hydropath (U K ) Ltd. - Nottingham
- Hydropure Group Ltd - St Neots
- Hydroscand - Nottingham
- Hydroserve Ltd. - Southampton
- Hydrotec Consultants Ltd. - Leeds
- Hydrotechnik UK Ltd - London
- Hydroweld - Sutton Coldfield
- Hyfore Engineering Ltd - Coventry
- Hygan Products Ltd - Stoke on Trent
- Hygienic Equipment Ltd. - Sale
- Hygienic Stainless Steel Ltd. - Preston
- Hygrade Industrial Plastics Ltd. - Rugby
- Hyma (U K) Ltd. - Oldham
- Hymas Refrigeration Ltd. - London
- Hymmen-Miller Ltd. - Baldock
- Hyndburn Metals - Accrington
- Hypex Electroniques Ltd. - Wembley
- Hypro Developments Ltd. - Lymington
- Hypro Eu Ltd. - Cambridge
- Hyquip Ltd. - Bolton
- Hyspec Industrial Supplies - Corby
- Hyspeed (CNC) Ltd - Emsworth
- Hystat Systems Ltd. - Huddersfield
- Hytec Castings Ltd - Coventry
- Hytek Europe - Cirencester
- Hytemp Nickel Alloys Ltd - Sheffield
- Hythe Re-Upholstery Service - Southampton
- Hytorc (Unex) Ltd. - Blyth
- Hytork Controls Ltd - Peterlee
- Hytrac Lifts Ltd - Leicester
- Hyzed Engineering Ltd. - Caerphilly
