Company Index
- I & G Engineering Ltd. - Swansea
- I & M Controls Ltd. - Birmingham
- I & M Precision Engineering Ltd. - Runcorn
- I A W Engineering - Blackpool
- I and Co - Milton Keynes
- I and T Projects and Installations Ltd - Burton on Trent
- I C A Ltd. - Horley
- I C Optical Systems Ltd - Beckenham
- I C R - Leicester
- I C S (Industrial Services) Ltd. - Chester
- I C T S Ltd. - Havant
- I C T V Sales & Services Ltd. - Farnborough
- I D F Ltd - Chesham
- I D Services G B Ltd. - Coventry
- I D Signs & Fascias - Nottingham
- I E Bolt & Nut Ltd. - Bradford
- I E I Building Services Engineers - Basingstoke
- I G Harmond Associates - Brecon
- I G S Engineering - Ashford
- I H Borland (Contractors) Ltd. - Kilmarnock
- I H A Swindon Ltd. - Swindon
- I Holland Ltd. - Nottingham
- I I E S (Northern) Ltd. - Widnes
- I J A S Ltd. - Eastleigh
- I J L Engineering - Willenhall
- I K A Engineering - Nottingham
- I M D Industries - Sevenoaks
- I M E R - Reman Ltd. - Newark
- I M F Technical Services Ltd. - Aberdeen
- I M F Consultancy - Leeds
- I M G Machine Guards - Dudley
- I M H (Birmingham) Ltd. - Birmingham
- I M Plastech Ltd. - St Neots
- I M S International Marketing Services Ltd - Birmingham
- I Mccallum - Tewkesbury
- I N S I Precision Ltd. - Y Felinheli
- I P C Services - Bolton
- I P E Ltd - Newmarket
- I P Engineering - Yeovil
- I P F - Glenrothes
- I P L Engineering - Bicester
- I R C Ltd. - Glasgow
- I R Fabrications - Leicester
- I R S Ltd. - Swaffham
- I R Structures - Keighley
- I S B Engineering - Blackburn
- I S C A Technical Papers & Films Ltd. - Exeter
- I S E Fire Products & Services Ltd. - Kettering
- I S Group - Flint
- I S M Business Development Ltd. - Dundee
- I S Maintenance Ltd. - Barnsley
- I S O Systems - Kidderminster
- I Sinton and Son - Cirencester
- I T C M L Ltd. - Hitchin
- I T Engineering - Rochester
- I T M Surface Treatments Ltd - Leven
- I T S C Ltd. - London
- I T S Engineering Services - Manchester
- I T T Flygt Ltd - Warrington
- I W Payne & Partners Ltd. - Romsey
- I W M S - Leeds
- I Wright & W K Munsey & W P Munsey - Oxford
- I'ans Staircases - Sheerness
- i-Transport - Basingstoke
- I. D. Machinery Ltd - Milton Keynes
- I.V.S Asia Ltd - Huddersfield
- Iain Scott Fabrications Ltd. - York
- Ian Brown - Wantage
- Ian Chwieseni - South Shields
- Ian & Sandra Jones - Doncaster
- Ian Bennett Engineering Ltd - Brierley Hill
- Ian Carswell Associates - Spennymoor
- Ian Cocker - Sheffield
- Ian D Archibald Ltd - Dumfries
- Ian Dowson (Blinds) Ltd - Stafford
- Ian Edmondson - Stockport
- Ian Farmer Associates (1998) Ltd - Gateshead
- Ian Fellows Ltd - Frome
- Ian Jemison Engineering - York
- Ian Jones Joinery Services Ltd. - Edinburgh
- Ian Long Joinery - Cheltenham
- Ian Lydon Associates - Stockport
- Ian Mackay & Associates - London
- Ian Mackintosh - Bristol
- Ian McCallum Consulting Civil & Structural Enginee - Paisley
- Ian Steele - Colchester
- Ian Storey Engineering - Morpeth
- Ian Tasker - Sutton
- Ian White Associates Ltd - Eastbourne
- Ian Whiteoak - Glossop
- Ian Wooton Packing Cases & Pallets - Willenhall
- Ians Staircases - Sheerness
- IB Industries - Bolton
- Ibbotson & Corker Engineering Ltd. - Sheffield
- Ibbotson D & Son - Barnsley
- Ibbotson J E - Norwich
- Ibco (U K) Ltd. - Bournemouth
- Ibp Conex Ltd. - Tipton
- IBS - Industrial Blower Services Ltd - London
- Ibs Specialist Joinery Ltd - Reading
- Ibsecad Ltd - London
- ICAM Engineering Ltd. - Deeside
- ICAN Acoustics - Galway
- Ican Business Solutions Ltd. - Milton Keynes
- Icandy Design - Basingstoke
- Ice Boys - Milton Keynes
- Ice Clean Engineering - Telford
- Icel Group Ltd. - Maidstone
- Icmm - London
- Icon Engineering (Wisbech) Ltd. - Wisbech
- Icore International Ltd - Slough
- Icr Mobility - Ringwood
- ICS Robotics and Automation Ltd - Southampton
- IDA Motion Ltd - Seaton
- IDAC Ltd - Croydon
- IDC Conveyor Engineering - Cirencester
- IDE Systems Ltd - Cannock
- Ideal Building Systems Ltd. - Bridlington
- Ideal Cleaning Services Ltd - Peterborough
- Ideal Engineering - Belfast
- Ideal Heating Supplies Ltd. - Chelmsford
- Ideal Hose & Safety Ltd. - Northampton
- Ideal Windows - Craigavon
- Iden Signs - Cranbrook
- Identec Ltd - Houghton le Spring
- Identilam Plc - Horsham
- IDM Engineering - Ellesmere Port
- Ie-Ndt Ltd. - Chipping Norton
- Iec Ltd. - Poole
- IES Industrial (Ireland) Ltd - Belfast
- Ifa Foundry Co. (U K) Ltd. - Nottingham
- Ifor Williams Trailers Ltd. - Corwen
- IG Ashbrook Fluids Handling Ltd - Northwich
- Ignus Ltd. - Warwick
- Igus UK Ltd - Northampton
- Iicorr Ltd. - Aberdeen
- Ijc (International) Ltd. - Torquay
- IKO Nippon Thompson Europe BV - Milton Keynes
- Ilapak Ltd - Hayes
- Ilc Garage Doors Ltd. - Wakefield
- Ilford Engineering Co. Ltd. - Basildon
- Ilkeston Joinery - Ilkeston
- Illston & Robson Ltd - Birmingham
- Illuma Lighting - Castle Donnington
- Iloman Engineering Ltd. - Douglas
- Ilott Heavy Recovery - Warrington
- Ilpra Systems (UK) Ltd - Swindon
- Ilsley & Challis Ltd. - Basingstoke
- IM Engineering - Glasgow
- Image 2000 - London
- Image Signs - Todmorden
- Image Wheels International Ltd - Tipton
- Imagees Ltd - Stoke on Trent
- Imaging Business Systems (N I ) Ltd. - Belfast
- Imago Metal Ltd - Halifax
- Imat Ltd - Tamworth
- Imco Recycling UK Ltd - Swansea
- Imcopex Office Supplies plc - Leeds
- Imes - Portsmouth
- Imes Engineering and Projects - Bristol
- Imgas Ltd. - Nottingham
- IMI Bailey Birkett - Manchester
- IMI plc - Birmingham
- Imi Watson Smith Ltd - Leeds
- Immediate Engineering Services - Leeds
- Imo Graphics Ltd. - Walsall
- Imofa UK Ltd - Colchester
- Impact Air Systems Ltd. - Leicester
- Impact Conveyor Parts Ltd. - Lisburn
- Impact Cooling Services Ltd. - Oxford
- Impact Finishers Ltd - Slough
- Impact Fork Trucks T/A Impact Handling - Boston
- Impact Graphics - Hungerford
- Impact Metal Finishing - Nottingham
- Impact Metal Services Ltd - Rowley Regis
- Impact Precision Ltd - Nottingham
- Impact Precision Manufacturing Ltd. - Wednesbury
- Impact Sewing Machinery Ltd - Alresford
- Impact Sheet Metal Co. Ltd. - South Ockendon
- Impact Sign Displays - Worcester
- Impel Engineering - Reading
- Imperial Blinds - Houghton le Spring
- Imperial Design Uk Ltd. - Manchester
- Imperial Ductwork Manufacturing Ltd. - Bexley
- Imperial Machine Co Ltd - Rickmansworth
- Imperial Metal Recyclers Ltd - Southend on Sea
- Imperial Signs - Thornton Cleveleys
- Imperial Welding and Sheet Metal - London
- Impetus Technologies Ltd - Whitchurch
- Impex Lighting Ltd - Borehamwood
- Impey Uk Ltd. - Ilminster
- Impregnation Services Ltd - Ashton under Lyne
- Impress Metal Packaging Ltd - Grantham
- Impress North East Ltd - Blaydon on Tyne
- Impress Sensors and Systems Ltd - Aldermaston
- Impulse Point of Purchase Ltd - Sandy
- Impulse Pump Services - London
- IMS Engineering Ltd - Durham
- Imsl Ltd. - Woodford Green
- In Chains - Ringwood
- In Stainless Ltd - Harrogate
- In-Cad Services Ltd - Aylesbury
- IN2GRAIN Ltd. - Andover
- Inagas Ltd. - Hemel Hempstead
- Inal Metals Ltd - Manchester
- Inc Landauer - Kidlington
- Inca Metals - Birmingham
- Inca Tooling Ltd - Worcester
- Incamesh Filtration Ltd - Warrington
- Incamet Ltd - Lanark
- Incanite Foundry Ltd - Smethwick
- Incartec Ltd. - York
- Inco Europe Ltd - London
- Inco Sports Pavillion - Swansea
- Incom Systems - Ossett
- INCON (Inspection Consultants) Ltd - Ellesmere Port
- Incontrol Ltd - Burton on Trent
- InControl Systems Ltd - Chesterfield
- IncoTest UK - Hereford
- Indasa Abrasives (U K) Ltd. - Colchester
- Indenco - Evesham
- Indentec Hardness Testing Machines Ltd. - Stourbridge
- Independant Tool Co - Chelmsford
- Independent Catering Supplies Ltd. - Caerphilly
- Independent Control Systems Ltd. - Telford
- Independent Forgings & Alloys Ltd - Sheffield
- Independent Installers - Canterbury
- Independent Integrity Inspection Ltd (INDEI) - Swindon
- Independent Life - Ashford
- Independent Living Project - Norwich
- Independent Parts &Service Ltd - Telford
- Independent Slitters Ltd. - Oldbury
- Indespension Ltd - Bolton
- Indestep International Ltd - Sunbury on Thames
- Index (Machining) Ltd. - Halesowen
- Index Fabrications (Southampton) Ltd. - Southampton
- Index Instruments Ltd. - Huntingdon
- Index Precision Co. - Luton
- Indicators International Ltd. - Magherafelt
- Indicum (Sales) Ltd. - Banbury
- Indifit Ltd. - Ongar
- Indigo Products Ltd - Walsall
- Indmar Sheetmetal Engineering Ltd. - Wigan
- Indoors (Droylsden) Ltd. - Manchester
- Induced Energy Ltd. - Brackley
- Inductelec Ltd - Sheffield
- Induction Heat Treatments (Manchester) Ltd. - High Peak
- Induction Melting Repairs Ltd. - Sheffield
- Induction Pipe Bending UK Ltd. - Washington
- Induction Technology Group Ltd. - Coventry
- Inductotherm Europe Ltd. - Droitwich
- Indulgence Interiors - Manchester
- Industore Ltd. - Cardiff
- Industria Bearings and Transmissions Ltd - Uxbridge
- Industrial & Marine Hydraulics Ltd. - Middlesbrough
- Industrial & Marine Supplies Ltd. - London
- Industrial & Motor Components Ltd. - Keighley
- Industrial & Rubber (Supplies) Ltd. - Liverpool
- Industrial & Welding Supplies (North West) Ltd. - Manchester
- Industrial (Boiler & Contract) Services Ltd. - Fareham
- Industrial Acoustics Co. Ltd. - Winchester
- Industrial and Marine Silencers Ltd - Leicester
- Industrial Automation and Control Ltd - Newport (Gwent)
- Industrial Automation Systems Ltd. - Bristol
- Industrial Blowers Services - Colchester
- Industrial Boiler Services Ltd - Bury St Edmunds
- Industrial Boilerhouse Supplies Ltd - Fareham
- Industrial Brakes Ltd. - Wolverhampton
- Industrial Cleaning and Maintenance - Bolton
- Industrial Cleaning Machines - Wolverhampton
- Industrial Clutch Parts Ltd - High Peak
- Industrial Combustion - Poole
- Industrial Cooling Systems - New Milton
- Industrial Cranes and Parts - Burton on Trent
- Industrial Crankshafts Ltd - Wolverhampton
- Industrial Design Associates Ltd - Kingston upon Thames
- Industrial Design Development Co - Hinckley
- Industrial Development Bangor (U W B) Ltd. - Bangor
- Industrial Distribution - Preston
- Industrial Door Company - Salford
- Industrial Door Engineering Ltd - Northwich
- Industrial Door Solutions Ltd. - Barnsley
- Industrial Door Systems (Midlands) Ltd - West Bromwich
- Industrial Doors (Scotland) Ltd. - Edinburgh
- Industrial Drives and Controls Ltd - Stockport
- Industrial Dust Control Ltd. - Crowborough
- Industrial Engineering - Craigavon
- Industrial Engineering Services (Southern) Ltd. - Wimborne
- Industrial Engineering Services (Wrexham) Ltd - Wrexham
- Industrial Filter Services Ltd - Leeds
- Industrial Finishers (Watford) Ltd - Watford
- Industrial Finishing Specialists - Gateshead
- Industrial Floorcare Machines - Belfast
- Industrial Forklift Services - Cannock
- Industrial Friction Materials Ltd - Cardiff
- Industrial Gas Springs Ltd. - Mitcham
- Industrial Handling Solutions Ltd. - Teddington
- Industrial Insulation Co. Ltd. - Leicester
- Industrial Lift Services Ltd. - Potters Bar
- Industrial Links Ltd. - Poole
- Industrial Maintenance Services - Exeter
- Industrial Measurements Ltd - Derby
- Industrial Metal Finishers - Wednesbury
- Industrial Metal Services (Sheet and Decoiling Division) - Gravesend
- Industrial Metal Services (Steel Stockholders) - Southend on Sea
- Industrial Motors and Gears Ltd (IMAG) - Middlesbrough
- Industrial Noise and Vibration Centre - Slough
- Industrial Noise Reduction Ltd - Southampton
- Industrial Pipework Ltd - Bridgend
- Industrial Plant Development Ltd. - Luton
- Industrial Powder and Paint Services - Ipswich
- Industrial Process & Engineering Services Ltd. - Workington
- Industrial Process Pumps Ltd. - Derby
- Industrial Purification Systems Ltd - St Helens
- Industrial Security Doors Ltd. - London
- Industrial Solutions Ltd - Bangor
- Industrial Steel Suppliers Ltd. - Buckley
- Industrial Supply Specialists Ltd. - Cramlington
- Industrial Timber Technology Ltd. - Southam
- Industrial Trading Co. Ltd. - Worcester
- Industrial Transmissions - Glasgow
- Industrial Vision Systems Ltd. - Abingdon
- Industrial Washing Machines Ltd - Birmingham
- Industrial Water Engineering Ltd - Bristol
- Industrialmachinesnet Ltd / Industrial Machines.net - Redditch
- Inert Belting and Materials - Hyde
- Infinite Engineering - Birmingham
- Inflight Peripherals Ltd. - Newport
- Inflite Engineering Services Ltd. - Stansted
- Infocash Ltd. - Abingdon
- Inform Design and Development Ltd - Towcester
- Information & Imaging Systems - Belfast
- Information Search and Analysis Consultants - London
- Infosight Europe Ltd. - Billingham
- Infra-Red Systems Ltd - Nottingham
- Infrared Integrated Systems Ltd. - Northampton
- Infrastructure Services Ltd - Shoreham by Sea
- Ingenia Solutions Ltd - Burgess Hill
- Ingenious India - London
- Ingersoll Rand Sales Co Ltd - Wigan
- Ingham Fabrication Ltd - Norwich
- Ingham Toolmakers Ltd - Halifax
- Inghams Joinery - Selby
- Ingimex Ltd. - Telford
- Inglebourne Joinery - Wickford
- Inglemere Metals Ltd. - Blackpool
- Ingles Buchan (Textiles) Ltd. - Glasgow
- Inglewood Engineering Consultancy - Macclesfield
- Ingram (Foundry) Industries Ltd. - Dudley
- Ingram Installations Ltd - Stockport
- Inidam Ltd - Romsey
- Initial Building Services Ltd. - Orpington
- Inline Engineering - Worcester
- Inmac Engineering - Redruth
- Inman Sheffield Ltd - Sheffield
- Inn Place (Design Services) Ltd - Sunderland
- Innotec Manufacturing Ltd. - Weymouth
- INNOV8ES Ltd. - Telford
- Innova Design Solutions Ltd. - Stockport
- Innoval Technology Ltd - Banbury
- Innovation Architects - Edinburgh
- Innovations and Design Ltd - Milton Keynes
- Innovative Springs & Wireforms - West Bromwich
- Inoplas Technology Ltd - Wimborne
- Inotech Systems Ltd. - Newcastle
- INOV8 Technologies Ltd - Buckingham
- Inovators Engineering Systems - Aberdeen
- Inpac Automation Ltd - Uxbridge
Inplas Fabrications Ltd - Uxbridge- Inprojex Automotive Ltd - Canterbury
- Inro Turned Parts - London
- Insensys Ltd. - Southampton
- Inserco Industrial (Controls) Ltd. - Rainham
- Inseto (U K) Ltd. - Andover
- Inside Aluminium - Hove
- Insight Access and Handling Ltd - Dudley
- Insight Monitoring Services Ltd. - Barnsley
- Insight N D T Ltd. - Mexborough
- Insight Precision Engineering Ltd. - Malvern
- Insight Security - Lewes
- Insignia Fabrications - West Bromwich
- Inspectahire Instrument Co Ltd - Aberdeen
- Inspek Services - Basingstoke
- Inspiratech 2000 Ltd (Internet) - Rugby
- Inspiratech 2000 Ltd (Materials) - Rugby
- Instafab - Leeds
- Instalectric Co. Ltd. - St Albans
- Installation & Refurbishment Solutions Ltd. - Purley
- Installation Ductwork and Fabrication Ltd - Stoke on Trent
- Instant Crusher Spares Ltd. - Bagillt
- Instant Fabrications Ltd. - Eastleigh
- Instant Image - Stirling
- Instant Image (East Anglia) Ltd. - Colchester
- Institute of Spring Technology Ltd - Sheffield
- Institution of Materials Mineral & Mining - Doncaster
- Instore - Bury
- Instrument Design Ltd - Wigan
- Instrument Machining Service Ltd. - Thetford
- Instrumentation Products - Barnstaple
- Instrumentation Systems and Services Ltd - Ilkley
- Instruments to Industry Ltd. - Liverpool
- Insulated Tools Ltd. - East Grinstead
- Insulheat Ltd - Chesterfield
- Inta Can Services - Kings Lynn
- Inta-Nations Industrial Coaters Ltd. - Halstead
- Inta-Serve Ltd. - Godstone
- Intahouse (T/u Extrudawood Ltd) - Newport (IOW)
- Intake Engineering Ltd - Canterbury
- Intamech Ltd. - Cradley Heath
- Intamet Ltd. - Fareham
- Intec Laser Services Ltd - Redditch
- Intech-Power Ltd. - Thurso
- Integra Components Ltd. - Warrington
- Integra Composites Ltd - Woodbridge
- Integra Precision Engineering Ltd. - Runcorn
- Integral Powertrain Ltd - Bletchley
- Integrated Air Systems Ltd. - Macclesfield
- Integrated Circles - Surbiton
- Integrated Design and Technology Ltd (IDT) - Kettering
- Integrated Display Systems Ltd. - Wallsend
- Integrated Geotechnical & Environmental Services Ltd. - Kenilworth
- Integrated Metal Supplies Ltd. - Leigh
- Integrated Modular Control Systems Ltd. - Birkenhead
- Integrated Sand Systems Ltd - Walsall
- Integrated Technologies Ltd - Ashford
- Integrity Services Ltd. - Birmingham
- Intek Adhesives Ltd - Cramlington
- Intelligent Fluid Solutions Ltd - London
- Intelligent Time Recorders - Livingston
- Intensiv Filter (Uk) Ltd. - Walsall
- Inter Gears - Walsall
- Interaction of Bath Ltd. - Bath
- Interactive Coding Equipment (I C E ) - Nottingham
- Interactive Manufacturing Ltd - Whitstable
- Interbulk Group Plc - Glasgow
- Intercast UK Ltd - Sheffield
- Interclean Support Services Ltd. - Reading
- Interface Force Measurements Ltd - Crowthorne
- Interfit Components Ltd. - Macclesfield
- Interfleet Technology Ltd. - Derby
- Interflex Hose and Bellows Ltd - Ludlow
- Interfood Technology Ltd - Thame
- Interframe Windows Ltd. - Paignton
- Interfusion - Stroud
- Intergrind - Petersfield
- Interior Blinds - Leeds
- Interior Iron - Bodmin
- Interior Landscaping Products Ltd. - Battle
- Interland Trading Ltd - Cambridge
- Interline Systems Ltd. - Liverpool
- Interlink Alloy Systems Ltd. - Waltham Abbey
- Interlock Ductwork Ltd. - West Bromwich
- Interlock Flexible Products Ltd. - Birmingham
- Interlube Systems Ltd. - Plymouth
- International Aerospace Engineering - Cranfield
- International Coffee Roasters - London
- International Cycle Distributors - Ballynahinch
- International Food Service Equipment Ltd - Croydon
- International Lift Equipment Ltd - Leicester
- International Motion Control Ltd. - Wolverhampton
- International PET Resales - Accrington
- International Power - London
- International Power Presses Ltd - Dudley
- International Processplants (Europe) Ltd. - Middlesbrough
- International Radiators - Leicester
- International Rectifier Co (GB) Ltd - Oxted
- International Sections Ltd - Wolverhampton
- International Syalons (Newcastle) Ltd - Wallsend
- International Towbars - Leeds
- Interotex Ltd - Cheltenham
- Interpat Ltd - Newton Aycliffe
- Interphone Security Group Ltd. - Harrow
- Interpower International Ltd - York
- Interroll (Engineering) Ltd - Corby
- Interserve Engineering Services Ltd - West Bromwich
- Interservefm Ltd. - London
- Intersign - Stockton on Tees
- Interspec (Consultants) Ltd. - Lincoln
- Intersteel - Oldbury
- Intertech - Stockport
- Intertech Process Machinery Ltd. - Stroud
- Intertrad Ltd. - London
- Intertrade Engineering Ltd. - Oldham
- Intex Precision Grinders - Hinckley
- Intier Automotive Interiors Ltd. - Warwick
- Intime Engineering Ltd - Ledbury
- Into Lifts - Twickenham
- Intoco Ltd - Cheltenham
- Intro Industrial Supplies - Leeds
- Inturserve International Ltd - Dundee
- Invacua Ltd. - Poole
- Invarmex(U K ) Ltd. - Nottingham
- Invedia - London
- Invensys Climate Control - East Kilbride
- Invensys Holdings Ltd. - London
- Inverclyde Biologicals - Bellshill
- Invertec Ltd. - Fairford
- Investacast Ltd - Ilfracombe
- Investment Castings (Congleton) Ltd. - Congleton
- Investment Castings Ltd. - Hatfield
- Invicta Engineering Services Ltd - Northampton
- Invicta Forks & Attachments - Leeds
- Invicta Neon Ltd. - Nottingham
- Invicta Tools & Fixings Ltd. - Canterbury
- Invicta Vibrators - Grantham
- Invincible Spring Co Ltd - Bilston
- IOK Engineering - Bootle
- Ion Consulting Engineers Ltd. - Southampton
- Ion Science Ltd - Royston
- Iona Unitool Group - Cheltenham
- Iona Ventilation Co. Ltd. - Glasgow
- Ionalysis Ltd - Cheadle (Cheshire)
- Ionic Engineering Ltd - Sandy
- Ionic Instruments Ltd - Henfield
- Iosat Ltd - Stockport
- Ipc Services (Uk) Ltd. - Gravesend
- IPE - Southend on Sea
- IPL Maintenance - Porthcawl
- Ipm - Farnham
- Ipm Interiors Ltd - Nottingham
- IPP Scomark Ltd - Swadlincote
- Ipsco UK Ltd - Scunthorpe
- Ipswich Hydraulics Ltd - Ipswich
- IR Laidlaw Architectural Hardware Ltd - Salford
- IR Locking Systems - Gateshead
- Iracroft Ltd. - Blandford Forum
- Ireflo Products Ltd. - London
- Ireland Business Systems - Craigavon
- Iridex Engineering Co. Ltd - Huddersfield
- Irlam Sheet Metal Co. Ltd. - Manchester
- IRM (Bristol) Ltd - Yate
- Iron Acton Forge & Stables - Bristol
- Iron Art - Eastbourne
- Iron Bridge Engineering - Sheffield
- Iron By Design - Knutsford
- Iron By Design Ltd - Keighley
- Iron Creations - Washington
- Iron Design - Halesowen
- Iron Designs Ltd - Portslade
- Iron Horse Studio - Glasgow
- Iron Works - Crawley
- Iron-Age Forge Ltd. - Warminster
- Ironart Fabrications Ltd. - Lochwinnoch
- Ironmongery Direct Ltd - Hockley
- Ironoak Ltd. - Stowmarket
- Irons Brothers Ltd - Wadebridge
- Ironspray Ltd. - Cwmbran
- Ironsun (U K) Ltd. - Walsall
- Ironworks - Coventry
- Ironworld - Darlington
- Irony - Magherafelt
- Irs Surfacing Technologies Ltd. - Ormskirk
- Irvine Engineering - St Andrews
- Irvine Spring Company Ltd - Irvine
- Irvon Steel Press and Shear - Bilston
- Irw (Enclosures) Ltd. - Liskeard
- IS and G Steel Stockholders Ltd - Beckenham
- IS and G Steel Stockholders Ltd - Canterbury
- IS and G Steel Stockholders Ltd - Chelmsford
- Isaac H Grainger & Son Ltd. - Cradley Heath
- Isaac Ltd - Warrington
- Isan Engineering - St Austell
- Isc Seals Ltd - Bury
- Ischebeck Titan Ltd - Burton on Trent
- ISD Cold Stores Ltd - Gloucester
- ISG Thermal Systems Ltd - Basildon
- Isis U K Ltd. - London
- Isla Components Ltd - Worcester
- Island Blinds - Colchester
- Island Electroplating Ltd. - Sandown
- Island Fire Protection Ltd. - Birmingham
- Island Forklifts Ltd. - Belfast
- Island Motor Cycles - Ventnor
- Island Packaging - Newport
- Island Scientific Ltd - Ventnor
- Island Steel (U K) Ltd. - Newport
- Isle Of Wight Motorcycles Ltd - Newport (IOW)
- Islebest Ltd. - Luton
- Isleburn Ltd - Dingwall
- Isles A & Son - Hertford
- Isleworth Polishing & Plating Ltd. - Brentford
- IsoCool Ltd - Braintree
- Isoform Ltd. - Market Drayton
- Isograph Ltd. - Warrington
- Isolated Systems Ltd. - Heanor
- Isoma Ltd. - Swadlincote
- Isomatic U K Ltd. - Guildford
- Ison Ltd. - High Wycombe
- Isotek Electronics Ltd - Leeds
- Israel Newton & Sons Ltd. - Bradford
- ISS Fabrications Ltd - Coventry
- ISS Precision Engineering Ltd - Cramlington
- Ist Technologies Ltd - Newbury
- Istil (U K) Plc - Queenborough
- Italian Locking Systems - Musselburgh
- Itasco Precision Ltd - Glenrothes
- Itaya Europe Ltd. - Alcester
- ITCM - Coventry
- Itd Consultants - Portsmouth
- Itf Engineering - Bishops Stortford
ITM Components Ltd - Wimborne- ITP Group - Rugby
- ITP SA - York
- ITRI Innovation Ltd - St Albans
- Its-Intern Transport System (U K ) Ltd. - Ilkeston
- Itssar - Wokingham
- ITT Flygt Ltd - Nottingham
- ITT Lowara UK Ltd - Axminster
- ITT Water and WasteWater UK Ltd - Livingston
- ITW Industrial Finishing - Bournemouth
- Ivacroft Ltd. - Sawbridgeworth
- Ivan Kilbee Heating Ltd. - Abingdon
- Ivan Wawryn Ltd. - Bedford
- Ivanhoe Forge Ltd. - Whitley Bay
- IViewCameras Ltd - London
- Ivor Charles Adcock - Exeter
- Ivor Henley - Burgess Hill
- Ivor R Cordall - Fareham
- Ivor Searle Ltd. - Ely
- Ivy Cottage Interiors - Amersham
- Ivybay Ltd. - South Croydon
- Ivywood Interiors Ltd. - Wakefield
- IYS Control Systems Ltd - Witham
- Izax - Alfreton
