Company Index
- H Scientific Ltd. - Waterlooville
- H Shaw Magnets Ltd. - Sheffield
- H & H Services Ltd - Nottingham
- H & H Video & Television - Ellesmere Port
- H C Starck Ltd. - Calne
- H E Electronics Ltd. - Wimborne
- H F Systems - West Bromwich
- H I Powertronics Ltd. - Melksham
- H Preston Professional Video - Malvern
- H Roberts & Sons(Dial Indicators) Ltd. - Leicester
- H S Dataline Ltd. - Birmingham
- H Tec Ltd. - Southampton
- H V R International Ltd. - Jarrow
- H-Squared Electronics Ltd - Shefford
- H.V. Skan Ltd - Solihull
- Haani Cables Ltd. - Hartlepool
Habia Cable Ltd - Bristol- Haes Systems (Manufacturing) Ltd. - Uxbridge
- Hager UK Ltd - Telford
- Hagglunds Drives Ltd - Normanton
- Halcyon Drives Ltd - Leeds
- Hale Instruments Ltd - Altrincham
- Hallmark Electronics Ltd - Newcastle under Lyme
- Hamamatsu Photonics (UK) Ltd - Welwyn Garden City
- Hameg UK Ltd - St Neots
- Hamilton Hall Consultants Ltd. - Alton
- Hamilton Litestat - Warminster
- Hamilton Rentals Ltd. - Reading
- Hamlin Electronics - Diss
- Hammond Electronics Ltd - Basingstoke
- Hanning Ltd - Burton on Trent
- Hanovia Ltd. - Slough
- Hans Tech - Chorley
- Hansa Associates - Congleton
- Hantarex International Ltd. - London
- Hanwell Instruments Ltd - Letchworth
- Haredata Electronics - Harrogate
- Harford Dictation Systems Ltd - Coventry
- Harland Simon plc - Bletchley
- Harland Simon UPS Ltd - Milton Keynes
- Harlequin Electronics - Rushden
- Harman Becker Automotive Systems Ltd - Bridgend
- Harmer and Simmons Ltd - Ilford
- Harmsworth Townley & Co. Ltd. - Todmorden
- Harnessflex Ltd - Birmingham
- Harpers A.V. Ltd - Woking
- Harpscreen (Gb) Ltd. - St Helens
- Harris C J Electronic Components - Tunbridge Wells
- Harris Systems Ltd. - Wokingham
- Harrison & Greenwood (Transformers) Ltd. - Halifax
- Harrison Electrical Ltd. - Leeds
- Harrison Electronics - March
- Harrison-Croft Ltd - Heathfield
- Harrow Lighting Centre - Wembley
- Hart Instruments Ltd. - Swadlincote
- Hartest Precision Instruments - Redhill
- HARTING Integrated Solutions Ltd - Northampton
- HARTING Ltd - Northampton
- Harty Electronics Ltd - Henley on Thames
- Harvard Centro - London
- Harvard Manufacturing Ltd. - Newry
- Harwin plc - Portsmouth
- Harwood Enterprises Ltd. - Letchworth
- Hasco Components International - Taunton
- Hasco-Internorm Ltd - Daventry
- Hassett Industries Ltd. - Salisbury
- Hathaway Systems Uk Group Ltd. - Belfast
- Havells Sylvania Uk Ltd. - Newhaven
- Haven Systems Ltd. - Milford Haven
- Hawco Ltd - Godalming
- Hawk Electronics Ltd. - Accrington
- Hawke Systems - Slough
- Hawker Energy Products Ltd - Manchester
- Hawker Siddeley Switchgear Ltd - Blackwood
- Hawkeye Security and Surveillance Systems Ltd - London
- Hawkshead Designs Ltd - Porthtowan
- Hayakawa International (UK) Ltd - Wrexham
- Haynes RF Ltd - Colchester
- Haze Batteries - Corby
- Haze Batteries Europe Ltd. - Romsey
- Hazledine Electronics Ltd - Telford
- HB Modules Ltd - Cheltenham
- HB Technologies Ltd - Newton Aycliffe
- HBL NiCad Batteries (UK) Ltd - Rugby
- HBM (UK) Ltd - Harrow
- HC Controls Ltd - Stockton on Tees
- HCD Research Ltd - Burgess Hill
- HDL (Electronics) Ltd - East Kilbride
- HE Controls Ltd - Southport
- Heading Ltd - Ely
- Headset Co UK Ltd, The - Bristol
- Heating Spares Specialists Ltd - Poole
- Heatmiser Uk Ltd - Darwen
- Heatrae Sadia Heating - Norwich
- Heatsense Cables Ltd - Burnley
- Heaven Dowsett and Co Ltd - Birmingham
- Heber Ltd. - Stroud
- Hech Engineering Ltd. - Bedlington
- Heidenhain (GB) Ltd - Burgess Hill
- Heinzmann UK Ltd - Darlington
- Helium Projects Ltd - Worthing
- Hellermanntyton Data Ltd. - Northampton
- Helmsman Electronics Ltd - Blackpool
- Helvar Merca Ltd - Dartford
- Hemco Power and Control Systems Ltd - Eastleigh
- Hemplan Design Ltd - Gloucester
- Henri Picard and Frere Ltd - Dorking
- Henry Cooch & Son Ltd. - Sevenoaks
Henrys Electronics Ltd - London- Heraeus Amba Ltd - Banbury
- Heraeus Electro-Nite (U K) Ltd. - Chesterfield
- Heraeus Materials Ltd - Stoke on Trent
- Heraeus Noblelight Analytics Ltd. - Cambridge
- Herald Electronics Ltd - Bristol
- Herbert - Oldham
- Hereford Rewinds Ltd - Hereford
- Herga Electric Ltd - Bury St Edmunds
- Hertford Controls Ltd. - Ware
- Hewlett Enterprises - Liverpool
- Hewlett-Packard Ltd - South Queensferry
- Hewlett-Packard Ltd. - Bracknell
- Heywood Associates - London
- HF Communications Solutions - Cambridge
- HF Instruments Ltd - Alton
- HFX Ltd - Bishops Stortford
- Hgl Dynamics Ltd - Godalming
- Hi 5 Electronics Ltd - Rochdale
- Hi-Press Hydraulics Ltd - High Peak
- Hi-Rel Lids Ltd. - Harleston
- Hi-Tech Automation Ltd. - Kettering
- Hi-Tech Design Ltd - Waterlooville
- Hi-Tech Mouldings Ltd - Waterlooville
- HiDef Solutions - Swindon
- Hiden Analytical Ltd - Warrington
- Hifi Cinema Ltd. - Reading
- High Pressure Hire Ltd - Hook
- High Voltage Systems Ltd - Northampton
- High Voltage Technology - Dunmow
- Highblade Cables - Appleby
- Highland Scientific - Bedford
- Highlight Ltd. - London
- Highwater Designs Ltd. - Cheltenham
- Hilclare Ltd. - Manchester
- Hilger Crystals Ltd - Margate
- Hiline Communications Ltd. - Brierley Hill
- Hill & Sons - High Peak
- Hillcrest Engineering Instrumentation Ltd. - Leek
- Hillday Ltd. - Attleborough
- Hills Engineering Ltd. - Walsall
- Hillstone Products Ltd - Bury
- Hilltop Products (Insulation Sleevings) Ltd - Warrington
- Hine Engineering Ltd. - Bradford
- Hirose Electric U K Ltd - Milton Keynes
- Hirschmann Automation & Control Ltd. - Birmingham
- Hirst Magnetic Instruments Ltd. - Falmouth
- Hitachi Automotive Systems Europe Ltd. - Bolton
- Hitachi Data Systems Ltd. - Slough
- Hitachi Europe Ltd - Maidenhead
- Hitaltech UK Ltd - Poulton le Fylde
- Hitek Electronic Materials Ltd - Scunthorpe
- Hitek Ltd - Horsham
HiTek Power Ltd - Littlehampton- HITEK-Nology Solutions Ltd - Derby
- Hitel Communication Systems - Bootle
- Hitex (U K) Ltd. - Coventry
- Hivolt Capacitors Ltd. - Londonderry
- HNL Engineering - Stockton on Tees
- Hocken Audio Visual - London
- Hofbauer (UK) Ltd - Gloucester
- Hohner Automation Ltd. - Wrexham
- Hollybank Electronics Exchange - Southampton
- Holroyd Instruments Ltd. - Matlock
- Holt Broadcast Services Ltd - Reading
- HolyStone Europe Ltd - Norwich
- Homag UK Ltd - Derby
- Homewatch Ltd - Glasgow
- Honda Connectors Ltd - Swindon
- Honeysett Computers Ltd - Wigton
- Honeywell (Cooling and Refrigeration) - Motherwell
- Honeywell Aerospace Uk - Yeovil
- Honeywell Control Systems - Bracknell
- Honeywell Control Systems Ltd - Bristol
- Honeywell Control Systems Ltd - Manchester
- Honeywell Control Systems Ltd - Motherwell
- Honeywell Control Systems Ltd - Sunderland
- Honeywell Scanning and Mobility - Warrington
- Honeywell Security and Custom Electronics - East Kilbride
- Hong Kong Trade Development Council - London
- Honle UV (UK) Ltd - Luton
- Hook & Tucker Zenyx Ltd. - Croydon
- Horkesley Electronics Ltd - Colchester
- Hormann Electronics - Cork
- Horsell Electrics Ltd - Brighton
- Horsham Business Systems Ltd. - Horsham
- Horstmann Controls Ltd - Bristol
- Hortimax Ltd - York
- Horwich Electronic Laboratories Ltd. - Bolton
- Hosiden Besson Ltd - Hove
- Hothouse Product Development Partners - London
- House-on-the-Hill Software Ltd. - Stockport
- Household Automation Ltd - Horsham
- Hovercam Ltd - Plymouth
- Howard Butler Ltd. - Walsall
- Howard Eaton Lighting Ltd - Lewes
- Howarth Switchgear Ltd - Glasgow
- Hp - Birmingham
- Hp Laboratories - Bristol
- HPC Engineering plc - Burgess Hill
- HR Smith Group (T/u Techtest Ltd) - Leominster
- Hs Marston Aerospace Ltd. - Wolverhampton
- Hs Sports Ltd. - Congleton
- Htc Group Ltd. - Watford
- Huba Control AG Branch Office UK - Witney
- Huber + Suhner (Uk) Ltd. - Bicester
- Huggett Electrical Ltd. - Bath
- Hughes Electronics Ltd. - London
- Humber Telecommunications Ltd. - Grimsby
- Humiseal Europe Ltd. - Camberley
- Hummel Ltd - Leigh
- Hunt Engineering (UK) Ltd. - Highbridge
- Hunter Cable Assembly - Theale
- Huntleigh Healthcare Ltd - Cardiff
- Hursley EMC Services - Chandlers Ford
- Husky Injection Moulding Systems UK Ltd - Leicester
- HV Wooding Ltd - Hythe
- Hvr Pentagon Ltd. - Birmingham
- Hybec Ltd. - Leicester
- Hybrid Laser Technology Ltd - Ely
- Hybrid Technology Services Ltd - Yate
- Hyco Manufacturing Ltd. - Castleford
- Hycontrol Ltd. - Redditch
- Hydram Engineering Ltd - Durham
- Hydramotion Ltd. - Malton
- Hydro-Cable Systems Ltd. - Aberdeen
- Hydrobond Engineering Ltd. - Aberdeen
- Hydrosphere U K Ltd. - Alton
- Hylec APL - Wellingborough
- Hypercom GB Ltd - Salisbury
- Hypertac Ltd. - London
- Hypertec Ltd - Hungerford
- Hytec Information Security Ltd. - Witney
