Company Index
- I & M Controls Ltd - Birmingham
- I & M Precision Engineering Ltd - Runcorn
- I - Meks Ltd - Dartford
- I and Co - Milton Keynes
- I and G Engineering Ltd - Swansea
- I and T Projects and Installations Ltd - Burton on Trent
- I C Optical Systems Ltd - Beckenham
- I C R - Leicester
- I C T S Ltd - Havant
- I D F Ltd - Chesham
- I D Harrison - Whitstable
- I D L - Manchester
- I D Services G.B. Ltd - Coventry
- I D Signs - Swansea
- I D Signs & Fascias - Nottingham
- I D Welding - Hinckley
- I H A Swindon Ltd - Swindon
- I Hayward Ltd - Wrexham
- I Holland Ltd - Nottingham
- I J A S Ltd - Eastleigh
- I J L Engineering - Willenhall
- I M D Industries - Sevenoaks
- I M F Consultancy - Leeds
- I M H (Birmingham) Ltd - Birmingham
- I M Products Ltd - Stockbridge
- I M S International Marketing Services Ltd - Birmingham
- I Mccallum - Tewkesbury
- I P E Ltd - Newmarket
- I P Engineering - Yeovil
- I P F Consultants Ltd - Leeds
- I P L Engineering - Bicester
- I R Davies and Son - Llanybydder
- I R Fabrications - Leicester
- I R Structures Ltd - Keighley
- I R W Ltd - Liskeard
- I S B Engineering - Blackburn
- I S C A Technical Papers & Films Ltd - Exeter
- I S E Fire Products & Services Ltd - Kettering
- I S M Business Development Ltd - Dundee
- 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 T Flight Ltd - Waterlooville
- I T T Flygt Ltd - Warrington
- I T W Red Head - Glasgow
- I W Ridgway - Norwich
- I'ans Staircases - Sheerness
- i-Transport - Basingstoke
- I. D. Machinery Ltd - Milton Keynes
- I. G. Ashbrook Fluids Handling Ltd - Northwich
- I.I.E.S. (Northern) Ltd - Widnes
- I.R.S. Ltd - Swaffham
- I.V.S Asia Ltd - Huddersfield
- I.W. Payne & Partners Ltd - Romsey
- IAC Ltd / Industrial Accoustic Co Ltd - Winchester
- Iain Scott Fabrications Ltd - York
- Ian Austwick Carpentry and Locksmith Service - Peterborough
- Ian Brown - Forfar
- Ian Brown Signs - Thornton Cleveleys
- Ian Cahill - Dorchester
- Ian Campbell Partnership - Balerno
- Ian Carswell Associates - Spennymoor
- Ian Cocker - Sheffield
- Ian D Archibald Ltd - Dumfries
- Ian Dowson - Stafford
- Ian Edmondson - Stockport
- Ian Farmer Associates (1998) Ltd - Gateshead
- Ian Fellows Ltd - Frome
- Ian Garton - Dumfries
- Ian Holdgate Consulting Engineers Ltd - Bingley
- Ian Jemison Engineering - York
- Ian Jones - Bangor
- Ian Jones Joinery Services - Edinburgh
- Ian Lydon Associates - Stockport
- Ian Mackay Associates Ltd - London
- Ian Mackintosh - Bristol
- Ian Mccallum - Paisley
- Ian McConnachie - Chesterfield
- Ian Mitchell Engineering Design Ltd - Aberdeen
- Ian Moir Associates - Edinburgh
- Ian Norman Mallett - Bedford
- Ian Steele - Colchester
- Ian Storey Engineering - Morpeth
- Ian Tait Refrigeration Services - Edinburgh
- Ian Tasker - Sutton
- Ian Thane - Chorley
- Ian W Harrison Fabrications - Peterborough
- Ian White Associates Ltd - Eastbourne
- Ian Whiteoak - Glossop
- Ian Wootton - Willenhall
- Ians Staircases - Sheerness
- IAW Engineering - Blackpool
- IB Industries - Bolton
- Ibbotson & Corker Engineering Ltd - Sheffield
- Ibbotson D & Son - Barnsley
- Ibbotson J E - Norwich
- Ibco (U K) Ltd - Bournemouth
- IBD Ltd - Leeds
- Ibenco - Wantage
- Ibp Conex Ltd - Tipton
- IBS - Industrial Blower Services Ltd - London
- Ibs Specialist Joinery Ltd - Reading
- Ibsecad - London
- IC Powder Coatings - Newtownards
- ICA Ltd - Horley
- Icam Engineering Ltd - Deeside
- ICAN Acoustics - Galway
- Ican Business Solutions Ltd - Milton Keynes
- iCandy Design Ltd - 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 Ltd - Ringwood
- ICS (Industrial Services) Ltd - Chester
- ICS Robotics and Automation Ltd - Southampton
- ICTV Ltd - Farnborough
- Id Consultants - Glasgow
- IDA Motion Ltd - Seaton
- IDAC Ltd - Croydon
- IDC Conveyor Engineering - Cirencester
- IDE Systems Ltd - Cannock
- Ideal Building Systems Ltd - Bridlington
- Ideal Caravans - Armagh
- Ideal Caravans Ltd - Durham
- Ideal Cleaning Services Ltd - Peterborough
- Ideal Engineering - Belfast
- Ideal Heating Supplies Ltd - Chelmsford
- Ideal Hose & Safety Ltd - Northampton
- Identapply - Bradford
- Identec Ltd - Houghton le Spring
- Identilam P L C - Horsham
- IDM Engineering - Ellesmere Port
- IE Bolt and Nut Ltd - Bradford
- Ie-Ndt Ltd - Chipping Norton
- IEC Ltd - Poole
- IEI Building Services Engineers - Basingstoke
- IES Industrial (Ireland) Ltd - Belfast
- IES Instrumentation Electrical Services Ltd - Stockton on Tees
- Ifa Foundry Co (U K) Ltd - Nottingham
- Ifeline - Nottingham
- Ifor Williams Trailers Ltd - Corwen
- IFP Building Services Consultants LLP - Godalming
- Ifs Industrial Fastener Suppoies - Barrow in Furness
- Ignus Ltd - Warwick
- Igp - Bristol
- Igus UK Ltd - Northampton
- IH Borland Contractors Ltd - Kilmarnock
- Iicorr Ltd - Aberdeen
- IJC International Ltd - Torquay
- IKO Nippon Thompson Europe BV - Milton Keynes
- Il Ponte Ristorante - Croydon
- Ilapak Ltd - Hayes
- ILC Garage Doors Ltd - Ossett
- Ilford Engineering Co.Ltd - Basildon
- Illston & Robson Ltd - Birmingham
- Illuma Lighting - Castle Donnington
- Ilott Commercials Ltd - Warrington
- Ilott Engineering Ltd - Poole
- Ilpra Systems (UK) Ltd - Swindon
- Ilsley & Challis Ltd - Basingstoke
- Ilva (U K) Ltd - Birmingham
- IM Engineering - Glasgow
- IM Plastech Ltd - St Neots
- Image 2000 - London
- Image Polishing - Birmingham
- Image Signs - Todmorden
- Image Wheels International Ltd - Tipton
- Imagees Ltd - Stoke on Trent
- ImageStor Ltd - London
- Imaging Business Systems - Belfast
- Imagistics International Ltd - Harlow
- Imat Ltd - Tamworth
- Imco Recycling UK Ltd - Swansea
- Imcopex Office Supplies plc - Leeds
- IMER-Reman Ltd - Newark
- Imes - Aberdeen
- Imes Engineering and Projects - Bristol
- Imes Ltd - Portsmouth
- Imes Systems - Sheffield
- IMF Technical Services Ltd - Aberdeen
- Imgas Ltd - Nottingham
- IMI Bailey Birkett - Manchester
- IMI plc - Birmingham
- Imi Watson Smith Ltd - Leeds
- Immediate Engineering - Leeds
- Imo Graphics Ltd - Walsall
- Imofa UK Ltd - Colchester
- Imp Engineering Services Ltd - Walsall
- Impac Infrared Ltd - Chesterfield
- Impact Air Systems Ltd - Leicester
- Impact Conveyor Parts - Craigavon
- Impact Cooling Services Ltd - Oxford
- Impact Finishers Ltd - Slough
- Impact Fork Truck and Commercial - Spalding
- 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 - Cradley Heath
- Imperial Design Ltd - Manchester
- Imperial Ductwork Manufacturing - Dartford
- 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
- Improv Ltd - Aberdeen
- Impulse Point of Purchase Ltd - St Neots
- Impulse Pump Services - London
- IMS Engineering Ltd - Durham
- In Chains - Ringwood
- In Stainless Ltd - Harrogate
- In-Cad Services Ltd - Aylesbury
- IN2GRAIN Ltd - Andover
- Inagas Ltd - Hemel Hempstead
- Inal Metals Ltd - Manchester
- 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 Ltd - Swansea
- Incom Systems - Ossett
- 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
- Independent Access Lifts - Southampton
- 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 List Truck Training - Newton le Willows
- Independent Living - Minehead
- Independent Living Co - London
- Independent Living Project - Norwich
- Independent Parts &Service Ltd - Telford
- Independent Slitters Ltd - Oldbury
- Independent Stabilising Co Ltd, The - Chesterfield
- Independent Tool Co - Chelmsford
- 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
- Indico Industrial Diamond and Tool Co - Limavady
- Indicum (Sales) Ltd - Banbury
- Indifit Ltd - Ongar
- Indigo Products Ltd - Walsall
- Indmar Sheetmetal - Wigan
- Induced Energy Ltd - Brackley
- Inductelec Ltd - Sheffield
- Induction Heat Treatments (Manchester) Ltd - High Peak
- Induction Melting Repairs Ltd - Sheffield
- Induction Pipe Bending UK Ltd. - Sunderland
- Induction Technology Group Ltd - Coventry
- Inductotherm Europe Ltd - Droitwich
- Indulgence - Manchester
- Indupart - Glasgow
- Industore Ltd - Cardiff
- Industria Bearings and Transmissions Ltd - Uxbridge
- Industrial & Rubber (Supplies) Ltd - Liverpool
- Industrial (Boiler & Contract) Services Ltd - Fareham
- Industrial and Home Blinds - Alloa
- Industrial and Marine Hydraulics Ltd - Middlesbrough
- Industrial and Marine Silencers Ltd - Leicester
- Industrial and Marine Supplies Ltd - London
- Industrial and Motor Components Ltd - Keighley
- 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 and Development Ltd - Bristol
- Industrial Design Associates Ltd - Kingston upon Thames
- Industrial Design Development Co - Hinckley
- Industrial Development Bangor (U W B) Ltd - Bangor
- Industrial Display Systems (Fife) Ltd - Cowdenbeath
- 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 Doors and Construction Ltd / Sectional Doors Ltd - Newry
- 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 Furnaces Ltd - Stourbridge
- Industrial Gas Springs Ltd - Mitcham
- Industrial Gear Repairs Ltd - Nottingham
- Industrial Handling Solutions Ltd - Teddington
- Industrial Insulation Co Ltd - Leicester
- Industrial Lift Services Ltd - Potters Bar
- Industrial Links Ltd - Poole
- Industrial Machine Guards - Dudley
- 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 Ovens Ltd - Skelmersdale
- Industrial Paint Finishers - Glenrothes
- Industrial Pattern Makers Ltd - Stanley
- 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 Sewing Machines - Glasgow
- Industrial Sheet Metal Co - Wakefield
- Industrial Steel Suppliers Ltd - Buckley
- Industrial Supply Specialists Ltd - Cramlington
- Industrial Timber Technology Ltd - Leamington Spa
- Industrial Trading Co Ltd - Worcester
- Industrial Transmissions - Glasgow
- Industrial Vision Systems Ltd. - Abingdon
- Industrial Washing Machines Ltd - Birmingham
- Industrial Water Engineering Ltd - Bristol
- Industrial Wear Parts (Sheffield) Ltd - Sheffield
- Industrialmachinesnet Ltd / Industrial Machines.net - Redditch
- Inert Belting and Materials - Hyde
- Infinite Engineering - Birmingham
- Inflight Peripherals Ltd - Newport (IOW)
- Inflite Engineering Services Ltd - Stansted
- Infocash Ltd - Abingdon
- Information and Imaging Systems - Belfast
- Information Search and Analysis Consultants - London
- Infosight-Europe Ltd - Billingham
- Infotec Birmingham - Birmingham
- Infotec Northern Ireland - Belfast
- Infra-Red Systems Ltd - Nottingham
- Infrastructure Services Ltd - Shoreham by Sea
- Ingenia Solutions Ltd - Burgess Hill
- Ingersoll Rand Sales Co Ltd - Wigan
- Ingham Fabrication Ltd - Norwich
- Ingham Toolmakers Ltd - Halifax
- Inghams - 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
- Inidam Ltd - Romsey
- Initial Building Services Ltd - Orpington
- Initial Registrations - Bangor
- Inlec UK Ltd - Stokesley
- Inline Engineering - Worcester
- Inmac Engineering - Redruth
- Inn Place (Design Services) Ltd - Sunderland
- Innercode Ltd - Salford
- Innotec Manufacturing Ltd - Weymouth
- INNOV8ES Ltd - Telford
- Innova Design Solutions Ltd - Stockport
- Innoval Technology Ltd - Banbury
- Innovar Engineering Services Ltd - Bathgate
- Innovation Architects - Edinburgh
- Innovations and Design Ltd - Milton Keynes
- Innovative Springs & Wireforms - West Bromwich
- Inoplas Technology Ltd - Wimborne
- Inotech Systems Ltd - Newcastle under Lyme
- INOV8 Technologies Ltd - Buckingham
- Inovators Engineering Systems - Aberdeen
- Inpac Automation Ltd - Uxbridge
Inplas Fabrications Ltd - Uxbridge- Inprojex Automotive Ltd - Kenilworth
- Inro - London
- Insensys Ltd - Southampton
- Inserco Industrial (Controls) Ltd - Rainham
- Inseto (U K) Ltd - Andover
- Insi Precision - Y Felinheli
- Insight Access and Handling Ltd - Dudley
- Insight Monitoring Services Ltd - Barnsley
- Insight Ndt Ltd - Rotherham
- Insight Precision Engineering Ltd - Malvern
- Insight Sign Systems - Glasgow
- Insignia Fabrications - West Bromwich
- Inspectahire Instrument Co Ltd - Aberdeen
- Inspection Consultants Ltd - Ellesmere Port
- Inspek Services - Basingstoke
- Inspiratech 2000 Ltd (Internet) - Rugby
- Inspiratech 2000 Ltd (Materials) - Rugby
- Inspired Designs - Skegness
- Instafab - Leeds
- Instalec Services - Loughborough
- Instalectric Co Ltd - St Albans
- Installation & Refurbishment Solutions Ltd - Croydon
- 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
- Instant Signs and Graphics - Ashford
- Institute of Materials, Minerals and Mining, The - London
- Institute of Spring Technology Ltd - Sheffield
- Institution of Materials Mineral & Mining - Doncaster
- Instrument Design Ltd - Wigan
- Instrument Machining Service Ltd - Thetford
- Instrument Repairs and Calibration - East Kilbride
- Instrument Technology Ltd - St Leonards on Sea
- Instrumentation Systems and Services Ltd - Ilkley
- Instruments to Industry Ltd - Liverpool
- Insul - 8 - (Great Britain) Ltd - Salford
- Insulated Tools Ltd - East Grinstead
- Insulheat Ltd - Chesterfield
- Insurance Surveys International Ltd - Horsham
- 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 Consulting Uk Ltd - Tewkesbury
- Intec Laser Services Ltd - Redditch
- Intech Power - Thurso
- Integra Components Ltd - Warrington
- Integra Composites Ltd - Woodbridge
- Integra Facades Ltd - Cardiff
- Integra Precision Engineering Ltd - Runcorn
- Integral Powertrain Ltd - Bletchley
- Integrated Air Systems Ltd - Macclesfield
- Integrated Circles Ltd - London
- Integrated Display Systems Ltd - Wallsend
- Integrated Engineering Services Aberdeen - Aberdeen
- Integrated Geotechnical & Environmental Services Ltd - Kenilworth
- Integrated Glass Technologies Ltd - Chesterfield
- Integrated Hydraulics Ltd - Warwick
- Integrated Metal Solutions Ltd - Basildon
- Integrated Metal Supplies Ltd - Leigh
- Integrated Modular Control Systems Ltd - Birkenhead
- Integrated Sand Systems Ltd - Walsall
- Integrated Sound Communications - Congleton
- Integrated Technologies Ltd - Ashford
- Integrity Services Ltd - Birmingham
- Intek Adhesives Ltd - Blyth
- Intellicom Systems Ltd - Burntwood
- Intelligent Fluid Solutions Ltd - London
- Intelligent Time Recorders - Livingston
- Intensiv Filter (Uk) Ltd. - Walsall
- Inter Gears - Walsall
- Inter-Tec Services Ltd - Kilmarnock
- Interaction of Bath Ltd - Bath
- Interactive Coding Equipment (I C E ) - Nottingham
- Interactive Manufacturing Ltd - Whitstable
- Interbulk Group - East Kilbride
- Intercan Ltd - Bletchley
- Intercast UK Ltd - Sheffield
- Interclean Support Services - Newbury
- Interface Force Measurements Ltd - Crowthorne
- Interfacia Ltd - Ilford
- Interfit Components Ltd - Macclesfield
- Interfleet Technology Ltd - Derby
- Interflex Hose and Bellows Ltd - Ludlow
- Interfluid Hydraulics Ltd - Gunnislake
- Interfood Technology Ltd - Thame
- Interframe Ltd - Paignton
- Interfusion - Stroud
- Intergarage Ltd - Redditch
- Intergraphics - Weston super Mare
- Intergrind - Petersfield
- Interior Blinds - Leeds
- Interior Iron - Bodmin
- Interior Landscaping Products Ltd - Battle
- Interior Solutions Partnership Ltd - Sutton Coldfield
- 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 Ltd - Ballynahinch
- International Food Service Equipment Ltd - Croydon
- International Lift Equipment Ltd - Leicester
- International Metrology Systems Ltd - Loanhead
- International Motion Control Ltd - Wolverhampton
- International PET Resales - Accrington
- International Power Presses Ltd - Dudley
- International Precision Casting Supplies - London
- International Press Network - London
- International Radiators Ltd - 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
- Intertrade Engineering Ltd - Oldham
- Intex Precision Grinders - Hinckley
- Intier Automotives - 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 plc - London
- Invent Heat Transfer - Redditch
- Invent Systems UK - Warrington
- Inverclyde Biologicals - Bellshill
- Invergordon Pallet Services - Invergordon
- Invertec Ltd - Fairford
- Investacast Ltd - Ilfracombe
- Investment Castings (Congleton) Ltd - Congleton
- Investment Castings Ltd - Hatfield
- Invicta Engineering Services Ltd - Northampton
- Invicta Forks and 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 - 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
- Ip Fibre Devices Uk Ltd - London
- Ip3 Technologies Ltd - Coventry
- Ipc Services (Uk) Ltd - Gravesend
- IPE - Southend on Sea
- IPEC Ltd - Manchester
- Ipeco Holdings Ltd - Southend on Sea
- Ipg Industrial Pipework and Welded Fabrications - Oldham
- IPL Maintenance - Porthcawl
- Ipm - Farnham
- Ipm Interiors Ltd - Nottingham
- IPP Scomark Ltd - Swadlincote
- Ipsco UK Ltd - Scunthorpe
- Ipswich Hydraulics Ltd - Ipswich
- IQ Supplies (Teamvise Ltd). - Bedford
- IR Laidlaw Architectural Hardware Ltd - Salford
- IR Locking Systems - Gateshead
- IR Security and Safety - Dor-O-Matic - Leamington Spa
- Iracroft Ltd - Blandford Forum
- Ireflo Products Ltd - London
- Ireland Business Systems - Craigavon
- Iridex Engineering Co. Ltd - Huddersfield
- Irion Sideloaders - Kenilworth
- Iris Financial - London
- IRISYS - Northampton
- Irivan Hammond - Northallerton
- IRM (Bristol) Ltd - Yate
- Iron Acton Forge - Bristol
- Iron Art - Eastbourne
- Iron Bed - London
- 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 Works - London
- Iron-Age Forge Ltd - Frome
- Ironart Fabrications Ltd - Lochwinnoch
- Ironmongery Direct Ltd - Hockley
- Ironoak Ltd - Stowmarket
- Irons Brothers Ltd - Wadebridge
- Ironsun (U K) Ltd - Walsall
- Ironworld - Darlington
- Irony - Magherafelt
- Irs Surfacing Technologies Ltd - Ormskirk
- Irvine Engineering - St Andrews
- Irvine Spring Company Ltd - Irvine
- Irvon Steel Press and Shear - Bilston
- IS and G Steel Stockholders Ltd - Beckenham
- IS and G Steel Stockholders Ltd - Canterbury
- IS and G Steel Stockholders Ltd - Chelmsford
- IS Group - Flint
- IS Maintenance Ltd - Barnsley
- Isaac H. Grainger & Son Ltd - Cradley Heath
- Isaac Ltd - Warrington
- Isakovic Alexander & Amanda - Halesowen
- 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 UK Ltd - London
- Isla Components Ltd - Worcester
- Island Electroplateing Ltd - Sandown
- Island Fire Protection Ltd - Birmingham
- Island Fork Lifts Ltd - Belfast
- Island Motor Cycles - Ventnor
- Island Packaging - Newport (IOW)
- Island Scientific Ltd - Ventnor
- Island Steel Ltd - Newport (Gwent)
- Isle Mill - Perth
- Isle Of Wight Motorcycles - Newport (IOW)
- Islebest Ltd - Luton
- Isleburn Ltd - Dingwall
- Isles A & Son - Rickmansworth
- Isleward Ltd - Willenhall
- Isleworth Polishing & Plating Ltd - Brentford
- Ism Fabrication Engineers - Manchester
- Iso Systems - Kidderminster
- IsoCool Ltd - Braintree
- Isoform Ltd - Market Drayton
- Isograph Ltd - Warrington
- Isolated Systems Ltd - Heanor
- Isoma Ltd - Swadlincote
- Isomatic U K Ltd - Guildford
- Ison Colin - Coventry
- Ison Products 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 UK plc - Queenborough
- Italian Locking Systems - Musselburgh
- Itasco Precision Ltd - Glenrothes
- Itaya Europe Ltd - Alcester
- ITCM - Coventry
- Itd Consultants - Portsmouth
- Itf Engineering - Bishops Stortford
- ITP Group - Rugby
- ITP SA - York
- ITRI Innovation Ltd - St Albans
- Its Engineering Services - Manchester
- Its-Intern Transport System (U.K.) Ltd - Ilkeston
- ITSC Ltd - London
- Itssar - Wokingham
- Itt FLT Ltd - Waterlooville
- ITT Flygt Ltd - Nottingham
- ITT Lowara UK Ltd - Axminster
- ITT Water and WasteWater UK Ltd - Livingston
- ITW Hofmann - High Wycombe
- 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 J Bayley - Swadlincote
- Ivor Pritchard - Newry
- Ivor Searle Ltd - Ely
- Ivy Bay Ltd - South Croydon
- Ivy Cottage Interiors - Amersham
- Ivybridge Engineering Services - Ivybridge
- Ivywood Interiors Ltd - Wakefield
- IYS Control Systems Ltd - Witham
- Izax - Alfreton
