Company Index
- I - Meks Ltd - Dartford
- I A and C L Jones - Welshpool
- I A and C Maciver - Stornoway
- I A and D Kettlewell - York
- I A and G Denton - Hungerford
- I A and W Forsyth - Ashington
- I A Balfour - Enniskillen
- I A Banks - Preston
- I A Buzzard - Banbury
- I A Collins and Son - Horsham
- I A Dascombe - Tiverton
- I A Eccles - Dollar
- I A G and M F Toulson - Spilsby
- I A Greenhalgh - Kidderminster
- I A Hunter - Banchory
- I A Mackie - Lostwithiel
- I A Naughton - Devizes
- I A Newton - Middlewich
- I A Robson - Newcastle upon Tyne
- I A Turnbull - Penrith
- I Alexander - Tiverton
- I Am Human Ltd - London
- I and A Broadhead - Leeds
- I and A Chippindale - Harrogate
- I and A Cooper - Orkney
- I and A Fisher - Newton Stewart
- I and A Griffiths - Bala
- I and A Hollinshead - Crewe
- I and A Lessen - Wadhurst
- I and C E Watson - Brough
- I and C Morrison - Cumnock
- I and Co
- I and D A Warner - Cranbrook
- I and E Stott - Ellon
- I and G Cohen Ltd - Salford
- I and G Engineering - Swansea
- I and G Mitchell - Lostwithiel
- I and G Wylie - Orkney
- I and H Brown Ltd - Perth
- I and H Stores - London
- I and I Shuttleworth - Dumfries
- I and I Wilson - East Linton
- I and J Commercial Spray Centre Ltd - Loughborough
- I and J Howat - Lydney
- I and J Jackson - Lanark
- I and J Lindsay - Carluke
- I and J Preece and Son - Bridgnorth
- I and J Struthers - Lanark
- I and K I Redhead - Millom
- I and K Supplies - Fraserburgh
- I and K V Rowland - Beaumaris
- I and M Controls Ltd - Birmingham
- I and M Jones - Ruthin
- I and M Miflin and Sons - Chippenham
- I and M Pearson Ltd - Morpeth
- I and M Precision Engineering - Runcorn
- I and N Fashions - Nuneaton
- I and N Gallacher - Sanquhar
- I and P A Voakes - Harrogate
- I and P Clarke - Kirkby Stephen
- I and P Lifting Gear Ltd - Stoke on Trent
- I and S Industrial Door Services - West Bromwich
- I and S Jones - Builth Wells
- I and T Projects and Installations Ltd - Burton on Trent
- I B A Fabrication - Consett
- I B Alexander - Diss
- I B Brooksbank - Steyning
- I B Davies - Llanwrda
- I B Fabrications - Wolverhampton
- I B Forman - Peterhead
- I B Gambold - Swansea
- I B Jones - Carmarthen
- I B Marsden - Larne
- I B S Trading - Langport
- I B T Consulting Services Ltd - Dorking
- I B Williams - Llanrwst
- I Beaven - Wadhurst
- I Bell and Sons - Horsham
- I Black - Coleraine
- I Brown - Castle Douglas
- I Brown - Westhill
- I Buchanan - Londonderry
- I C Carter - Chippenham
- I C D P - Solihull
- I C Davies - Presteigne
- I C Edwards - Whitchurch
- I C F (Industrial Concrete Flooring) - Wakefield
- I C Fabrication - Leamington Spa
- I C Gilmour and Son - Maybole
- I C Grant - Alnwick
- I C Huxley and Co - Whitchurch
- I C Jerman - Welshpool
- I C Pentelow - Wisbech
- I C R Mobility - Ringwood
- I C S Fabrications - Newark
- I C S T I S - London
- I C Wylie - Kirkcaldy
- I Campbell - Rugeley
- I Can Publisher Services - Braintree
- I Chapman - Carnforth
- I Clark - Bedford
- I Clark - Cumnock
- I Coulter - Newtownards
- I Cumming - Kington
- I D and B Ward - Beaworthy
- I D and J Hammersley - Ashbourne
- I D and P Smith - Pickering
- I D and V A Barker - Buckingham
- I D Clark and Partners - Hitchin
- I D Harrison - Whitstable
- I D Houston - Dalbeattie
- I D Interior Design Ltd - Romford
- I D L - Manchester
- I D Moore - Newtownards
- I D Neill and Partners - Robertsbridge
- I D Nicholas - Swansea
- I D Primrose - Sturminster Newton
- I D Rawlinson - Ulverston
- I D Renwick - Newcastle upon Tyne
- I D Signs - Swansea
- I D Vac Ltd - Manchester
- I D Welding - Hinckley
- I Dale - Darlington
- I Davies - Mold
- I Davies - Welshpool
- I Davis - Sowerby Bridge
- I Dean - Elgin
- I Dodds - Hexham
- I Doig - Montrose
- I Douglas - Brampton
- I Dress Myself - Nottingham
- I Duncan - Lockerbie
- I Duncan-Millar - Aberfeldy
- I E Fortey - Abergavenny
- I E Gleave - Wigan
- I E Hughes - Colwyn Bay
- I E R Ltd - Southall
- I E Roberts - Oswestry
- I E Taylor - Kendal
- I Ebrahimoff and Sons - London
- I Ellwood - Selby
- I Evans - Aberystwyth
- I Evans and Sons - Machynlleth
- I F A Foundry Co UK Ltd - Nottingham
- I F Burroughs and Sons - Southend on Sea
- I F Enterprises - Leicester
- I F Hay - Pembroke
- I F Macdonald - Glasgow
- I F Rounsenvell - Lostwithiel
- I F Sweetman - Luton
- I F Trehane and Son - Launceston
- I F Wharton - Great Yarmouth
- I Farquhar - Buckie
- I Farquharson - Wolverhampton
- I Fishwick - Chorley
- I G and H M E Jones - Carmarthen
- I G and J H Joslin - Southminster
- I G and P R Farmers Ltd - Holsworthy
- I G Campbell and Co - Castle Douglas
- I G Ellis - Denbigh
- I G Evans and Son - Wrexham
- I G H Jones - Lampeter
- I G Hackley - Hereford
- I G Harmond Associates Ltd - Brecon
- I G Jeffreys - Cowbridge
- I G Johnstone - Biggar
- I G Jones - Brecon
- I G Jones - Corwen
- I G Jones and Son - Denbigh
- I G Morgan - Ferryside
- I G Price - Builth Wells
- I G Roberts - Bala
- I G S Engineering - Ashford
- I G S Plant Hire Ltd - Halifax
- I G Williams - Llanbedr
- I Gamble - Ballymoney
- I Gilbert - Leicester
- I Gilliland - Newtownards
- I Govier - Umberleigh
- I Greenow and Son - Crickhowell
- I Griffiths - Whitland
- I Grunwerg Ltd - Sheffield
- I H A Swindon Ltd - Swindon
- I H and F Walker - Newcastle
- I H and M Mctaggart - Isle of Islay
- I H Barker - York
- I H Barkwill - Tavistock
- I H Croad - Sturminster Newton
- I H Davies - Ystrad Meurig
- I H Fisher - Stranraer
- I H Gribble - Launceston
- I H Jones - Market Drayton
- I H Jones - Neath
- I H Mclaren and Sons - Brackley
- I H Morris and Son - Llangollen
- I H Thomas - Chester
- I H Williamson - Newcastle upon Tyne
- I Habberfield - Bridgwater
- I Hamilton - Newcastle upon Tyne
- I Harries - Clynderwen
- I Hay - Turriff
- I Hayward Ltd - Wrexham
- I Henderson - Stocksfield
- I Holland Ltd - Long Eaton
- I Howatson - Lockerbie
- I Hyde - Templecombe
- I I E D - Edinburgh
- I I E S Ltd - Widnes
- I I Williams - Garndolbenmaen
- I J A S Ltd - Eastleigh
- I J Abbott - Wigan
- I J and A M Price - Llandovery
- I J and C M Tuckett - Newton Abbot
- I J and J Hobden - Heathfield
- I J and R Allan - Rugby
- I J B Price - Builth Wells
- I J Barnett and Son - Ludlow
- I J Bell - Bridgwater
- I J Bennett - Prescot
- I J Blackhall - Banchory
- I J Brown - Newtownards
- I J Bruce - Stonehaven
- I J Coates - Skipton
- I J Coren - Crediton
- I J Cotton - Uttoxeter
- I J D Mclean - Elgin
- I J Daniel - Fraserburgh
- I J Davies - Llanwrda
- I J Davies and Co - Corwen
- I J Evans - Usk
- I J Forsyth - Morpeth
- I J Goodenough - Liskeard
- I J Goodwin - Hereford
- I J Hasell - Wellington
- I J L Engineering - Willenhall
- I J L Plowman - Colchester
- I J Macaulay and Sons - Colchester
- I J Mckinlay - Stratford upon Avon
- I J Moon - Liskeard
- I J Powell - Llandrindod Wells
- I J Prudham - Brampton
- I J R Lloyd - Llanon
- I J Sparey - Worcester
- I J Thompson - Wrexham
- I J Webber and Son - Tiverton
- I Jelbert - Penzance
- I Jenkins - Lampeter
- I John - Llanelli
- I Jones Davies - Pwllheli
- I K Allsop - Nottingham
- I K Clark - Dorchester
- I K G Management Ltd - London
- I K Johnson - Hereford
- I K M Consulting Ltd - Grangemouth
- I Kellett - Ulverston
- I Kemsley Farms Ltd - Sittingbourne
- I L Bowness - Wigton
- I L Davies - Machynlleth
- I L Dixon - Carnforth
- I L Hudson and Son - Bedale
- I L Jones and Son - Corwen
- I L Morgan - Carmarthen
- I L Ractliffe - Gloucester
- I L Roberts - Ruthin
- I L Thomas - Llandysul
- I Lewis - Wrexham
- I Lewis (Commission Agents) Ltd - Manchester
- I Lister - Whitehaven
- I LL Jones - Dyffryn Ardudwy
- I Llewellyn and Co Ltd - Luton
- I Lloyd - Oswestry
- I Logan - Maybole
- I M Allen - Lutterworth
- I M Allison - Saltburn by the Sea
- I M Brandrick - Rugeley
- I M Broadwith - Bedale
- I M C Consulting - Welwyn Garden City
- I M Coulthard - Wigton
- I M Coxen - Spalding
- I M D Industries - Sevenoaks
- I M F Consultancy - Leeds
- I M Fabrications - Blackpool
- I M Hodgson and Son Ltd - Hull
- I M Jones - Carmarthen
- I M Kirk - Chelmsford
- I M Layfield - Ilkley
- I M O Graphics - Walsall
- I M R Solutions - Ely
- I M Renton - Blyth
- I M Rowse - Fowey
- I M Thomas - Caerphilly
- I Macarthur - Dunoon
- I Macintyre - Campbeltown
- I Macnicol - Lochgilphead
- I Marshall and Sons - Ferryhill
- I Mccallum - Tewkesbury
- I Mcfadzean - Newton Stewart
- I Mcghie - Stranraer
- I Mckie - Buckingham
- I Mitchell - Morpeth
- I Moorhouse - Clitheroe
- I Morgan - Llandovery
- I N Crowe Plant Hire - Grange over Sands
- I N G - Enfield
- I N Howells - Llanelli
- I N Neave - Kings Lynn
- I Nemetnejad - London
- I Newton and Son - Bideford
- I Newton and Son - Crook
- I Newton and Sons - Solihull
- I Norman - Fowey
- I O Jones - Abergele
- I O Management Services - Cwmbran
- I O Smith - Ruthin
- I Oliver - Crook
- I Oliver and Partners - Harrogate
- I P Adams - Taunton
- I P and S P Hall - York
- I P Blanc - Broughton In Furness
- I P C Orchard - Dunstable
- I P C Services - Bolton
- I P D Ltd - Bristol
- I P Davies - Oswestry
- I P Engineering - Yeovil
- I P F Consultants Ltd - Leeds
- I P F Consulting Engineers - Preston
- I P L Engineering - Bicester
- I P L Stagg - Barnstaple
- I P Powell - Hereford
- I P Thomas and Son - Brecon
- I Palmer and Son Ltd - Nottingham
- I Peat - Rotherham
- I Pick and Sons - Driffield
- I Pugh - Machynlleth
- I Q Management Systems - Sunderland
- I Quan - Lampeter
- I R and C L Clayton - Stockton on Tees
- I R and N Bradburn - Wigan
- I R and R P Downing - Truro
- I R and S A Jenkins - Haverfordwest
- I R Appleton - Hartlepool
- I R Atkinson - Wigton
- I R Barwell - Beaworthy
- I R Baxter - Salisbury
- I R Bevan - Bucknell
- I R Davey - Saltash
- I R Davies and Son - Llanybydder
- I R Dixon - Wigton
- I R Fabrications - Leicester
- I R Gibson - Kendal
- I R Gleed - Monmouth
- I R Hartley - Colne
- I R Hughes - Chepstow
- I R Ivinson - Carlisle
- I R Jones and Co - Denbigh
- I R Lawson - Hexham
- I R Lockett - Stowmarket
- I R Plant - Stamford
- I R Prouse - Holsworthy
- I R Stirling - Arbroath
- I R W Ltd - Liskeard
- I R Walton - Richmond
- I R Williams - Llanwrda
- I Rees - Llanidloes
- I Research Ltd - Horsham
- I Robb - Cupar
- I Robertson - Huntly
- I S B Engineering - Blackburn
- I S Booth - Crewe
- I S Carlile - Carlisle
- I S Davies - Llandysul
- I S Ford - Bristol
- I S French - Orpington
- I S Jones and Partners - Chester
- I S M Business Development Ltd - Dundee
- I S Scott - Newton Stewart
- I Satchell and M Ogborne - Bristol
- I Saunders and Sons - Liskeard
- I Sevenoaks - Hereford
- I Sinton and Son - Cirencester
- I Sleightholme - Scarborough
- I Smith - Cookstown
- I Spi Ltd - Glasgow
- I Stewart - Laurencekirk
- I Struct E - London
- I T Allin - Bideford
- I T B Fabrications - Nottingham
- I T Beadle - Barnard Castle
- I T C Consultancy - Reading
- I T Davies - Corwen
- I T Engineering - Rochester
- I T Forum Foundation - Egham
- I T James - Bodmin
- I T M London Ltd - Epsom
- I T M Surface Treatments Ltd - Leven
- I T Mcrobbie - Peterhead
- I T Rogerson - Filey
- I T S - Holywood
- I T S S A R - Wokingham
- I T T Flight Ltd - Waterlooville
- I T T Flygt Ltd - Warrington
- I T Trude and Partners - Cullompton
- I T W Red Head - Glasgow
- I Taylor - Okehampton
- I Tec Sewing - Rotherham
- I Thomas - Keighley
- I Thomas Partners - Tonypandy
- I Threlkeld - Carlisle
- I to Eye Presentations Ltd - Hook
- I V Jones - Bala
- I V O C M S Controls Ltd - Port Isaac
- I V Watters - Carmarthen
- I W and M J Jones - Llanarth
- I W Benzie - Insch
- I W Cairns - Durham
- I W Critchley - Chorley
- I W Davies - Clynderwen
- I W Dimond - Sherborne
- I W Evans - Brecon
- I W Farley - Cullompton
- I W Forster - Whitby
- I W Hall - Inverurie
- I W Henshaw - Ormskirk
- I W Hughes - Llanrhystud
- I W Humphreys - Llansantffraid
- I W Jones - Lampeter
- I W Kiddy - Sudbury
- I W King - Newry
- I W Payne and Partners - Romsey
- I W Porteous - Stafford
- I W Powell and Sons - Builth Wells
- I W Pugh - Brecon
- I W Rawnsley - Lampeter
- I W Renner and Sons - Oakham
- I W Ridgway - Norwich
- I W Terry - Hereford
- I W Thomas - Cardigan
- I W W Morgan - Llandovery
- I Wade - Bridlington
- I Walsh - Carlisle
- I Waterman (Box Makers) Ltd - London
- I Watson - Bishop Auckland
- I Weaver - Whitchurch
- I Welsh Ltd - Edinburgh
- I Whitaker - Colne
- I White and Sons - Oldbury
- I Whittall - Hereford
- I Williams - Carmarthen
- I Wilson - Omagh
- I Woodward - Matlock
- I Young - Dumfries
- I'ans Staircases - Sheerness
- I'Anson Bros Ltd - Ripon
- I-2-K Ltd - Reading
- i-BusSol Ltd. - London
- I-Change Ltd - Godalming
- i-Class Solutions Ltd - Chesterfield
- i-Clean Systems Ltd - Malvern
- i-COMPLY - Leeds
- I-D Signs and Fascias - Nottingham
- I-D-Systems - Norwich
- I-Home Ltd - Belfast
- I-Mob - Marlow
- I-MOTUS - Newbury
- i-Net Applications Ltd - Windsor
- I-Next Ltd - Reading
- I-PRO SPORTS Industries - Liverpool
- i-Retail Ltd - Bristol
i-sells co uk - London- i-Transport - Basingstoke
- i-Transport - Manchester
- i-Vision (UK) Ltd - Cwmbran
- I-volv Recruitment Solutions Ltd - Tunbridge Wells
- I.H.S. Systems Ltd - Kidlington
- i2 Ltd - Cambridge
- I2a Consulting LLP - London
- i2B Ltd - Durham
- i2i Business Solutions LLP - Stockton on Tees
- i2i Marketing - Beckenham
- i3 Global Design - Beaconsfield
- i3Marketing - Sheffield
- I3S - Macclesfield
- i4 Product Design - Edinburgh
- IA Barnes and Co Ltd - Stevenage
- IA Sound and Light - Swanley
- IA Technology Ltd - Hereford
- IA Telecom - Hereford
- IAB Lab Ltd - Keighley
- Iac and Nic Wright - Cambridge
- IAC Ltd / Industrial Accoustic Co Ltd - Winchester
- IAC Plastics - Burnley
- IAC Services - Billericay
- IACS Corrosion Engineering Ltd - Keston
- Iad Mackay - Newton Abbot
- Iadc North Sea Chapter - Aberdeen
- IAE (Industrial and Agricultural Engineers) - Leek
- IAG Technology Ltd - Aylesbury
- Iago European Consultants Ltd - Pudsey
- IAgrE (Institution of Agricultural Engineers) - Bedford
- Iain Glass - Pontefract
- Iain Leslie - Munlochy
- Iain M Burrup - Chipping Norton
- Iain M Crosbie - Beith
- Iain Malcolm - Callander
- Iain Muir Cabinet Maker - Stirling
- Iain Scott - York
- Iain Telfer - Beith
- IAM - Federated - Sandbach
- IAM Engineering Services - Inverness
- Iamco Ltd - Birmingham
- Ian A Davison - Alnwick
- Ian A Mchattie - Elgin
- Ian A Randall - Filey
- Ian A S Wood - Goole
- Ian A Sim - Turriff
- Ian Agnew - Stranraer
- Ian Alexander Paterson - Inverurie
- Ian Allan Group Ltd - Shepperton
- Ian Allan Publishing Ltd - Walton on Thames
- Ian Allan Travel Ltd - Bristol
- Ian Anderson - Aboyne
- Ian Austwick Carpentry and Locksmith Service - Peterborough
- Ian B Bartlett - Warwick
- Ian Berg Plastics Ltd - Melksham
- Ian Bisset Welding and Fabrication - Dingwall
- Ian Brand - Gainsborough
- Ian Brown - Forfar
- Ian Brown - Solihull
- Ian Brown Engineering Services - Aberdeen
- Ian Brown Signs - Thornton Cleveleys
- Ian Buchanan - Wokingham
- Ian Buckley - Nantwich
- Ian C Innes - Ellon
- Ian C Wilson - Banchory
- Ian Cahill - Dorchester
- Ian Caird and Son - Arbroath
- Ian Cameron - Forres
- Ian Campbell Partnership - Balerno
- Ian Carlile Management Ltd - London
- Ian Carswell Associates - Spennymoor
- Ian Christie - Aberdeen
- Ian Clifton - Bedford
- Ian Clow - Blairgowrie
- Ian Cocker Engineering - Sheffield
- Ian Coe - Bury St Edmunds
- Ian Cook and Son - St Austell
- Ian Cooper - Leeds
- Ian Copley - Melton Mowbray
- Ian Cotton - Lincoln
- Ian Crawford - Lanark
- Ian D Archibald Ltd - Dumfries
- Ian D Butler - Derby
- Ian D Elliott - Kilgetty
- Ian D Harvey - Liphook
- Ian Davies - Neath
- Ian Davies - Nottingham
- Ian Davison - Newcastle upon Tyne
- Ian Dawson and Son - Cupar
- Ian Deavin Marketing - Shefford
- Ian Derbyshire Associates - London
- Ian Dickie Plant Sales Ltd - Inverness
- Ian Dickson - Ipswich
- Ian Donaldson - Whitley Bay
- Ian Douglas Design and Print Ltd - Bishops Stortford
- Ian Dowson - Stafford
- Ian Dunn Woodwork and Design - London
- Ian E Bellamy - Tewkesbury
- Ian E Cockran - Towcester
- Ian E Wilson - Stoke on Trent
- Ian Ej Kay - Alford
- Ian Elphinstone - Fraserburgh
- Ian Farmer Associates - Motherwell
- Ian Farmer Associates (1998) Ltd - Gateshead
- Ian Fellows Ltd - Frome
- Ian Fergurson - Fort William
- Ian Fleming - Duns
- Ian Fleming - Newtownabbey
- Ian Flockton Developments Ltd - Grimsby
- Ian Forgrave - Ballymoney
- Ian Francis Lightfoot - Liskeard
- Ian Fredrick Lloyd - Chester
- Ian French - Middlesbrough
- Ian Fricker - Arundel
- Ian Fryer - Colchester
- Ian G Donald - Banff
- Ian Garton - Dumfries
- Ian Geoffrey Tall - Ivybridge
- Ian Gibson Associates - Carlisle
- Ian Gordon Specialised Woodworking Co - Canvey Island
- Ian Greaves International - Health and Safety Consultants - Cheltenham
- Ian Greene - Newcastle
- Ian H Morris - Bucknell
- Ian Heddle - Orkney
- Ian Hill - Ilkeston
- Ian Hitchman Fabrications Ltd - Troon
- Ian Hobbs Technical Services Ltd - Bath
- Ian Holdgate Consulting Engineers Ltd - Bingley
- Ian Hope Farms Ltd - Perth
- Ian Horner Studios - Halesowen
- Ian Houlgrave - Alford
- Ian Howick and Partners Ltd - Exmouth
- Ian Howie - Leven
- Ian J Alexander - Banchory
- Ian J Anderson - Turriff
- Ian J Dearness - Orkney
- Ian J Stephens - Aberdeen
- Ian J Webber - Taunton
- Ian Jackson - Turriff
- Ian Jemison Engineering - York
- Ian Johnson Associates (IJA) - Farnham
- Ian Johnstone - Tain
- Ian Jones - Bangor
- Ian Jones Joinery Services - Edinburgh
- Ian K Lobb - Bodmin
- Ian K Wilson - Durham
- Ian L and Valerie A Patrick - Selby
- Ian Lamb Computer Hardware - Dursley
- Ian Lawson - Inverness
- Ian Lewis Photography - North Shields
- Ian Liptrott - Wigan
- Ian Loughran - Newcastle upon Tyne
- Ian Lydon Associates - Stockport
- Ian M Cathers - Omagh
- Ian M Philip - Perth
- Ian Macartney - Elgin
- Ian Mackay Associates Ltd - London
- Ian Mackintosh - Bristol
- Ian Macleod and Co Ltd - Broxburn
- Ian Marshall - Newton Stewart
- Ian Martin Art - Saltcoats
- Ian Mason - Kings Lynn
- Ian Mason Farms Ltd - Kings Lynn
- Ian McBain Garden Design - Grantham
- Ian Mccaig - Kilmarnock
- Ian Mccallum - Paisley
- Ian McCann - South Shields
- Ian Mccreath - Newton Stewart
- Ian Mcdowell - Newtownards
- Ian Mcgregor - Greenock
- Ian Mckenzie - Wrexham
- Ian Mcmurray - Newry
- Ian Mcwilliam - Ravenglass
- Ian Mellor - Barnsley
- Ian Michael Gladders - Cranbrook
- Ian Mitchell - Keighley
- Ian Mitchell Coutts - Inverurie
- Ian Mitchell Engineering Design Ltd - Aberdeen
- Ian Moir Associates - Edinburgh
- Ian Moralee - Newcastle upon Tyne
- Ian Morton - Wilmslow
- Ian Mosey Ltd - York
- Ian Munro - Reading
- Ian Murray - Ellon
- Ian Nelson - Lockerbie
- Ian Newell - Newry
- Ian O Roberts - Mold
- Ian P Raybould BA - York
- Ian P Robinson - Lancaster
- Ian P Wilson - Seascale
- Ian Peters - Beckenham
- Ian Potter Associates - Ashbourne
- Ian R Prior - Hereford
- Ian R Williams - Llwyngwril
- Ian R. Barker and Associates - Norwich
- Ian Read - Horncastle
- Ian Richmond - Ballymena
- Ian Robb - Westhill
- Ian Robertson - Stromness
- Ian Roger Tay - Aberdare
- Ian Ross and Son - Biggar
- Ian RS Bond - Chipping Campden
- Ian S Bond - Chippenham
- Ian S Ferguson and Sons Ltd - Maldon
- Ian S Marden - Petersfield
- Ian S Stringer - Huddersfield
- Ian Samson - Sawbridgeworth
- Ian Semple - Londonderry
- Ian Sinclair - Lybster
- Ian Sisley and Co - Sevenoaks
- Ian Smart - Southampton
- Ian Smith - Berwick upon Tweed
- Ian Smith Construction Ltd - Milton Keynes
- Ian Smith Plant Ltd - Gainsborough
- Ian Somervail - Jedburgh
- Ian Spedding - Carlisle
- Ian Steel - Wigton
- Ian Storey Engineering - Morpeth
- Ian Strang - Tunbridge Wells
- Ian Strange (Tansley) Ltd - Matlock
- Ian Suddes - Durham
- Ian T Beaton - Banchory
- Ian T Buttercase - Cupar
- Ian T Goldie - Dumfries
- Ian T Mitchell - Workington
- Ian Tait Refrigeration Services - Edinburgh
- Ian Tasker - Sutton
- Ian Taylor - Peterculter
- Ian Thompson - Newtownards
- Ian Thompson - York
- Ian Thomson - Ellon
- Ian Tomalin - Braintree
- Ian Turner - Cairndow
- Ian V Hawkes - Omagh
- Ian Vaughan - Abergele
- Ian W and Marilyn Head - Burnley
- Ian W Harrison Fabrications - Peterborough
- Ian W Mccaughey - Ballymena
- Ian W Simpson - Dartford
- Ian Walker Commercials - Renfrew
- Ian Westrup - Halesworth
- Ian Whitaker Productions - Birmingham
- Ian White Associates Ltd - Eastbourne
- Ian White Ltd - Perth
- Ian Whitehead Contract Furnishing Ltd - Sheffield
- Ian Whiteoak - Glossop
- Ian Williams Ltd - Bristol
- Ian Williams Ltd - Cardiff
- Ian Williams Ltd - Plymouth
- Ian Williams Ltd - Tonbridge
- Ian Willox - Edinburgh
- Ian Wootton - Willenhall
- Ian Yates Joinery - Preston
- Ians Bespoke Furniture Ltd - Harrogate
- Ians Staircases - Sheerness
- IAS Body Shop Supplies - Manchester
- IAS Marketing and Communication plc - Macclesfield
- IAT Services Ltd - Kingston upon Thames
- IAW Engineering - Blackpool
- Iawia Consultancy Services - Barnsley
- IAWS - Royston
- Iaws Fertilisers - Royston
- IAWS Fertilsers Ltd - Alton
- IB Construction Ltd - Willenhall
- Ib Fabrications - Leominster
- Ib Green - Wantage
- IB Industries - Bolton
- Ib Plant Hire - Rotherham
- IB Scott Associates Ltd - Chippenham
- IB Tauris and Co Ltd - London
- ib3 Ltd - Tunbridge Wells
- iBase Systems Ltd - London
- Ibbetson and Co - Kendal
- Ibbotson and Corker Engineering Ltd - Sheffield
- Ibbotsons Potatoes - Tadcaster
- IBC - London
- IBC - Potters Bar
- IBCO Ltd - Bournemouth
- IBCOS Computers Ltd - Poole
- IBD Ltd - Leeds
- Ibenco - Wantage
- Iberian Lighting Ltd - St Leonards on Sea
- Ibex - Ashton under Lyne
- Ibex Geo-Tech Ltd - Halesowen
- Ibex Office Systems Ltd - London
- Ibex Systems (Maidstone) Ltd - Aylesford
- IBF Automatisierungs und Sicherheitstechnik GmbH and Co KEG
- IBG Immucor Ltd - Shoreham by Sea
- Ibis Documentation Services - Felixstowe
- Ibis Intergrid Ltd - Kendal
- Ibis Marketing - Ipswich
- Ibis Packaging Solutions - Newbury
- IBL Bulk Liquids Ltd - Hull
- IBL Parts (UK) Ltd - Warrington
- IBM (UK) Ltd - Aberdeen
- IBM (UK) Ltd - Edinburgh
- IBM (UK) Ltd - Glasgow
- IBM (UK) Ltd - Greenock
- IBM (UK) Ltd - Ilford
- IBM (UK) Ltd - Nottingham
- IBM (UK) Ltd - Plymouth
- IBM (UK) Ltd - Winchester
- IBN UK Service Centre - Farnborough
- Ibonhart (Norwich) Ltd - Norwich
- IBP Ltd - Tipton
- Ibr Consulting Ltd - Leamington Spa
- Ibram Ventures Ltd - Glasgow
- IBS - Liverpool
- IBS (Tapes) Ltd - East Kilbride
- IBS - Industrial Blower Services Ltd - London
- IBS OPENSystems - Newbury
- IBS Publishing - Hythe
- IBS Quality Software Ltd - Portishead
- Ibs Specialist Joinery Ltd - Reading
- IBS-STL - Carlisle
- Ibsecad - London
- IBSL Group - Whitley Bay
- Ibstock Brick - Bristol
- Ibstock Brick Aldridge Ltd - Aldridge
- Ibstock Brick Ltd - Cannock
- Ibstock Brick Ltd - Chester le Street
- Ibstock Brick Ltd - Coalville
- Ibstock Brick Ltd - Exeter
- Ibstock Brick Ltd - Glasgow
- Ibstock Brick Ltd - London
- Ibstock Brick Ltd - Newcastle upon Tyne
- Ibstock Brick Ltd - Sittingbourne
- Ibstock Brick Ltd - Skelmersdale
- Ibstock Brick Ltd - St Helens
- Ibstock Brick Ltd - Wakefield
- Ibstock Brick Ltd. - Dorking
- Ibstock Brick Products Ltd - Bexhill on Sea
- Ibstock Brick West Hoathly - East Grinstead
- Ibstock Gun and Tackle - Coalville
- Ibstock Redhurst Quarry - Wolverhampton
- IBT Power Ltd - Dorchester
- Ibwest Security Services Ltd - Grimsby
- IC 3e - Reading
- IC Blinds - Johnstone
- IC Blue (Formerly Bluetooth Electronics) - Leeds
- Ic Davies - Haverfordwest
- IC Fixings Ltd - West Bromwich
- IC Gears - Wimborne
- IC Innovations (Imperial College Innovations Ltd) - London
- Ic Morton and Partners - Newton Stewart
- IC Optical Systems - Beckenham
- IC Powder Coatings - Newtownards
- IC Printing Ltd - Hook
- IC Products (Scotland) Ltd - Paisley
- IC Publications Ltd - London
- IC Resources Ltd - Isleworth
- IC Resourcing (Accountancy and Finance Recruitment) Ltd - Milton Keynes
- Ic Service and Maintenance - Gillingham
- IC Software - Reading
- IC Surveys - Clitheroe
- IC247 - Malvern
- ICA Ltd - Horley
- ICA Solutions Ltd - Reading
- Icam Engineering Ltd - Deeside
- ICAM Ltd - Worthing
- ICAM- Property-Care - Bognor Regis
- ICAN Acoustics - Galway
- Ican Business Solutions Ltd - Milton Keynes
- ICAN Technology - Galway
- iCandy Design Ltd - Basingstoke
- Icansee Web Design - Blackburn
- iCare UK Ltd - St Neots
- Icarus Computer Systems Ltd - Barnet
- Icarus Housewares Ltd - Alton
- Icarus Partnership Ltd - Manchester
- ICB Design and Engineering Ltd - Skegness
- ICB Emulsions Ltd - Craigavon
- ICBAN (Irish Central Border Area Network) - Enniskillen
- ICC - Brighton
- ICC - International Computer Connections - Wetherby
- ICC Duplication / ICC Multimedia - Eastbourne
- ICC Information Ltd - Hampton
- ICC Legal and Commercial Services Ltd - Cardiff
- ICC Ventilation - Rhyl
- ICCH Ltd - Longford
- Iccom Ltd - York
- ICCS Ltd / Industrial and Commercial Computer Systems Ltd - Bury
- ICDL - The Business Accelerators - Wokingham
- Ice 'N' Easy - Bristol
- ICE (UK) Ltd - Cannock
- Ice Boys Air Conditioning Ltd - Milton Keynes
- Ice Channel Ltd - Cleckheaton
- Ice Clean Engineering - Telford
- Ice Cold Ltd - Liverpool
- Ice Control - Peterborough
- Ice Cool Environments Ltd - Cambridge
- Ice Cool Seafoods - Bognor Regis
- Ice Cream Alliance Ltd - Derby
- Ice Cream Container Co Ltd - Wembley
- Ice Cream Deliveries Ltd - London
- Ice Cream Deliveries Ltd - London
- Ice Cream Logistics Ltd - Morecambe
- Ice Direct - Peterborough
- Ice Fashions Ltd - London
- Ice Fresh Foods Ltd - Norwich
- Ice Impressions Ltd - Colchester
- ICE Joinery - Didcot
- ICE Management Consultants - Tamworth
- Ice Signs and Engraving - Leeds
- ICE Transport Inc - Ipswich
- Ice Vision Sculpture - Leven
- Ice Watch Ltd - Saxmundham
- Ice Work Ltd - Tonbridge
- Ice-IT - Pontypridd
- Ice-O-Matic - Warrington
- Iceability - Stafford
- Iceage Frozen Foods Ltd - Grimsby
- Iceandlemon Ltd - Liverpool
- Iceavon - Bristol
- Iceberg Marketing - Northampton
- Icecold Truck Bodies (M/c) Ltd - Oldham
- Icedale Ltd - Rainham
- ICEE - Waterlooville
- ICEL (Maidstone) Ltd - Maidstone
- Iceland Metal Recycling - London
- Iceni Anglia Ltd - Norwich
- Iceni Brewery - Thetford
- Iceni Pest Control Ltd - Thetford
- Iceni Productions Ltd - Lichfield
- Iceni Search and Selection Ltd - Egham
- Iceni Technology Ltd - Norwich
- icenta Controls Ltd - Salisbury
- ICETON - London
- Icevent Technology International Ltd - Eastbourne
- ICG - Bristol
- ICG - Stockport
- ICG - Southern Branch - Hitchin
- ICG Electronics - Peterborough
- Icheme - London
- Ichiban Ltd - Waltham Abbey
- Ichiban Media Ltd - Poole
- Ichicoo Design - Bradford
- ICI Group plc - London
- ICI Imagedata - Manningtree
- ICI Packaging Coating Ltd - Hull
- ICI Packaging Coatings Ltd - Birmingham
- ICI Paints - Slough
- Icing Cabin - Boston
- Icing Centre - Stockton on Tees
- Icing Centre - Weston super Mare
- Icing Matters - Birmingham
- Icing On The Cake - Rochester
- Icing On The Top - Plymouth
- Icing Parlour - Washington
- Icing Tip - Shrewsbury
- Icing World Sugar Craft - Rayleigh
- Icke John - Broadstairs
- Ickenham Business Travel (Ickenham Travel Group plc) - London
- Icklesham Joinery Ltd - St Leonards on Sea
- Ickringill and Norton Ltd - Harrogate
- ICL Environmental Services Ltd - Kidderminster
- ICL Tech Ltd - Glasgow
- ICM - Rochford
- ICM - Stratford upon Avon
- ICM (Plastic Moulding) Ltd - Rochester
- ICM Computer Group plc - Batley
- ICM Computer Group plc - Dartford
- ICM Fire and Security - Orpington
- ICM Security Products Ltd - Oldham
- ICM Toolmaking - Sheffield
- ICMA International Ltd - Northwood
- Icmm - London
- ICmyhotel - Ireson Computing Ltd - York
- iCode Systems Ltd - Southampton
- Icofin Ltd - London
- Icom (UK) Ltd - Herne Bay
- Icom Scottech - Kelso
- Icon - Bilston
- Icon Art Co - Cheltenham
- Icon Books Ltd - Cambridge
- Icon Business Solutions - Edinburgh
- Icon Business Solutions - Tadworth
- Icon Cleaning Contractors Ltd - London
- Icon Collections International Ltd - Bromley
- Icon Colour Ltd - Edenbridge
- Icon Construction Services Ltd - Bristol
- Icon Creative Services Ltd - Colchester
- Icon Display Ltd - Sidcup
- Icon Electronics Ltd - Knaresborough
- Icon Emergency Lighting Ltd - Newmarket
- Icon Engineering (Wisbech) Ltd - Wisbech
- Icon Flexpack Ltd - Burnley
- Icon Health and Fitness - Leeds
- Icon Industrial - Manchester
- Icon Model Maker - Epsom
- Icon Plastics - Stockton on Tees
- ICON Polymer Group Ltd - Retford
- Icon Power Components Ltd - Reading
- Icon Process System Ltd - Chesterfield
- Icon Publications Ltd - Kelso
- Icon Research Ltd - Livingston
- Icon Sign Manufacturing - Keighley
- ICON.net Ltd - Gloucester
- Iconic Group - Newry
- Iconic Ltd - Kettering
- Iconics UK Ltd - Kingswinford
- Iconography Ltd - Crewkerne
- Iconology - Ashford
- Icopal Ltd - Manchester
- Icoplastic - Warwick
- Icore International Ltd - Slough
- iCore Ltd - London
- ICP Search - Brighton
- ICP-UK.com - Redditch
- ICQ Solutions Ltd - Blackburn
- ICR - Leicester
- ICS - Stowmarket
- ICS (Industrial and Consumer Supplies) - Newport (Gwent)
- ICS (Industrial Services) Ltd - Chester
- ICS (Installations) Ltd - Aylesford
- ICS Computing Ltd - Belfast
- ICS Computing Ltd - Newbury
- ICS Electronics Ltd - Arundel
- ICS Legal Practice - London
- ICS Ltd - Hereford
- ICS Ltd / Industrial Control Software - Matlock
- iCS Management Ltd - London
- ICS Robotics and Automation Ltd - Southampton
- ICS Software Ltd - Marlborough
- ICS Triplex - Maldon
- ICSA Software - Southampton
- ICT Management Services Ltd - Doncaster
- ICT Systems Ltd - Belfast
- ICTC Ltd - Norwich
- Ictis Telemarketing - Penzance
- ICTlaunch - London
- ICTS Ltd - Havant
- ICTS Systems - Manchester
- ICTV Ltd - Basingstoke
- ICTV Ltd - Farnborough
- ICTV Southern Ltd - Portsmouth
- ICU Digital UK - Radlett
- ICU Group Ltd - Liverpool
- iCubed Technologies Ltd - Fareham
- ICW 2000 Ltd - Petersfield
- ICW Power - Kings Langley
- ICW UK Ltd - Wakefield
- ID Bureau Services - Galashiels
- ID Business Solutions Ltd - Guildford
- Id Card - Liverpool
- ID Computer Services - Bury
- ID Computer Services (Scotland) Ltd - Hamilton
- Id Consultants - Glasgow
- ID Data Systems Ltd - Petersfield
- ID Design - Harlow
- ID Dynamics - Hounslow
- ID Ess (Retail) Ltd / CIL - Harlow
- ID Howitt Ltd - Wakefield
- ID Machinery Ltd - Milton Keynes
- ID Maintenance - Leeds
- iD Maintenance Ltd - Leeds
- ID Management Systems - Cardiff
- iD Marketing Ltd - Derby
- ID Products Ltd - Baldock
- ID Search and Selection - West Byfleet
- Id Services GB - Coventry
- ID Systems Ltd - Shrewsbury
- ID Technology Group Ltd - Manchester
- ID&C Ltd - Tunbridge Wells
- IDA Advertising Ltd - Chelmsford
- IDA Motion Ltd - Seaton
- IDAC Ltd - Croydon
- Idaho Design Ltd - London
- Idahoan Foods - Edinburgh
- IDASS - Glastonbury
- IDB Consultants Ltd - Ryde
- IDB Ltd - Bangor
- IDC - Blackburn
- IDC (Holdings) Ltd - London
- IDC (UK) Ltd - London
- IDC Conveyor Engineering - Cirencester
- IDC Greenscapes Ltd - Brentwood
- IDC Systems Ltd - Birmingham
- IDD Enterprises Ltd - Sheffield
- IDE Systems Ltd - Cannock
- Idea Systems Ltd - Sheffield
- IdeaGen Software Ltd - Matlock
- Ideal Air - Ilford
- Ideal Boilers Ltd - Hull
- Ideal Building Systems Ltd - Bridlington
- Ideal Caravans - Armagh
- Ideal Caravans Ltd - Durham
- Ideal CCTV - Perth
- Ideal Cleaning Services Ltd - Birmingham
- Ideal Cleaning Services Ltd - Nottingham
- Ideal Cleaning Services Ltd - Peterborough
- Ideal Computers - Cowdenbeath
- Ideal Contract Ltd - Loughborough
- Ideal Corporate Solutions - Bolton
- Ideal Decks - Stockton on Tees
- Ideal Engineering - Belfast
- Ideal Food Ltd - Aberystwyth
- Ideal Foods Ltd - Liskeard
- Ideal Furniture Ltd - London
- Ideal Graphic - Tamworth
- Ideal Group - Basildon
- Ideal Group UK - Maidstone
- Ideal Handling (West Wales) - Bridgend
- Ideal Hardware Ltd - Chessington
- Ideal Health - Strathaven
- Ideal Health Group Ltd - Berkhamsted
- Ideal Heating Supplies Ltd - Chelmsford
- Ideal Home Textiles - Glasgow
- Ideal Hose and Safety Ltd - Northampton
- Ideal Host - Huntingdon
- Ideal Industries (UK) Ltd - Warrington
- Ideal Installations Ltd - East Grinstead
- Ideal Insurance Services Ltd - Chorley
- Ideal Integration Ltd - Hertford
- Ideal Interiors - Stowmarket
- Ideal Lifts Ltd - Okehampton
- Ideal Manufacturing Ltd - Wellingborough
- Ideal Marketing Promotions Ltd - Slough
- Ideal Office Ltd - Saffron Walden
- Ideal Packaging - West Bromwich
- Ideal Packaging and Printing - London
- Ideal Pallets - Guildford
- Ideal Pat Testing (Manchester) - Manchester
- Ideal Plastic Products Ltd - Bootle
- Ideal Power Ltd - Barnstaple
- Ideal Printers and Stationers - London
- Ideal Printing Service - Manchester
- Ideal Saddle Co - Walsall
- Ideal Sand and Diecasting Co Ltd - Stoke on Trent
- Ideal Security - Canterbury
- Ideal Solutions - Accrington
- Ideal Storage and Partitioning Ltd - Coalville
- Ideal Tanks and Pumps Ltd - Northampton
- Ideal Tiles Ltd - Walsall
- Ideal Upholstery Ltd - Nelson
- Ideal Window Blinds - Glasgow
- Ideal Window Solutions (IWS) Ltd - Fareham
- Ideal Windows (UK) Ltd - Orpington
- Ideal Woodworks - Southall
- Ideal.complete-id - Christchurch
- Idealogic (UK) Ltd - Bath
- IdealPeople - Milton Keynes
- Ideas in Automation Ltd - Chesterfield
- Ideas Ltd - Glasgow
- Ideasbynet - Sheffield
- Ideasuk - Telford
- IDEC Electronics Ltd - Basingstoke
- Idec Technical Services Ltd - Stockton on Tees
- Ideco (UK) Ltd - Alfreton
- Idelbi - London
- Iden Signs - Cranbrook
- Ident Machines Ltd - Leicester
- Identapply - Bradford
- Identec Ltd - Houghton le Spring
- Identifile Systems Ltd - Welwyn Garden City
- Identify Direct Ltd - Cambridge
- Identify Engraving Systems Ltd - Bristol
- Identify Ltd - Hythe
- Identilabel Ltd - Colchester
- Identilam plc - Horsham
- Identimark Ltd - Clevedon
- Identiprint - Dunfermline
- Identity Creation for Business - Hull
- Identity Graphic Communication Ltd - Eastbourne
- Identity Signs Ltd - Borehamwood
- Identity Squared Ltd - Caldicot
- Identivue Ltd - Worthing
- Identysol Ltd - Brighton
- IDEO - London
- iDesignshop - Weston super Mare
- IDESS Ltd - Workington
- IDF Ltd - Chesham
- Idg Global Solutions - Staines
- IDG Holdings Ltd - Warrington
- IDH Alarms Co Ltd - Gravesend
- IDI Metal Fabrications - Uckfield
- Idi Technologies - Petersfield
- IDILIK Creative - Milton Keynes
- IDIS - Weybridge
- IDJ Ltd - London
- IDL Colour Coating - Byfleet
- IDL Engineering Services - Byfleet
- IDL Systems Ltd - Bideford
- IDM Doors Ltd - Newport (Gwent)
- IDM Engineering - Ellesmere Port
- IDM Ferguson and Co - Turriff
- IDM Southern Ltd - Sudbury
- Idml.com
- Idon Thinking Resources - Blairgowrie
- Idoneus Ltd - Wellington
- Idonix Ltd - Much Wenlock
- IDP Safety Services Ltd - Eastbourne
- IDPP Group - Richmond on Thames
- Idris G Evans and Sons - Llanfyllin
- Idris H Roberts - Betws Y Coed
- Idris Jones - Oswestry
- Idris Morgan - Denbigh
- Idris Morris - Caernarfon
- IDS Electrical - Birmingham
- IDS Scheer - Birmingham
- IDS Security Systems Ltd - Cardiff
- Idsec Ltd - Harrow
- IDSUK (DataConnection) Ltd - Radstock
- IDU Software - Kingston upon Thames
- iDynamics Ltd - Leeds
- Ie and J H Brown - Belford
- IE Bolt and Nut Ltd - Bradford
- Ie France - Hereford
- IE Signs - Newcastle upon Tyne
- Ie-Ndt - Chipping Norton
- IEC Ltd - Poole
- Iechyd Da - Llandovery
- ieComputerSystems Ltd - Dublin 11
- IEE - Institution of Electrical Engineers - London
- IEI Building Services Engineers - Basingstoke
- IEL Identequip Ltd - Manchester
- IEM - Industrial Exchange and Mart - Bolton
- IEM Services - Redruth
- IEM Technologies Ltd - Bridgwater
- IEP Garden Products - Romsey
- IES - Avonmouth
- IES Group - Mansfield
- IES Industrial (Ireland) Ltd - Belfast
- IES Instrumentation Electrical Services Ltd - Stockton on Tees
- IES-PCA - Mansfield
- IESA Ltd - Warrington
- Iestyn and Meinir Hughes - Pwllheli
- IETG plc - Leeds
- Ieuan Evans - Carmarthen
- Ieuan Evans - Denbigh
- Ieuan H Evans - Oswestry
- Ieuan J Morgan - Aberdare
- Ieuan James - Crymych
- Ieuan Jones - Betws Y Coed
- Ieuan Jones - Machynlleth
- IF Cardboard Creation Ltd - Pickering
- IF Controls Ltd - Stourbridge
- If Lewis - Haverfordwest
- If White - Crediton
- IFA Promotion Ltd - London
- ifa.1 Ltd - Nottingham
- IFAM (UK) Ltd - Kings Langley
- IFB Ltd - Stoke on Trent
- IFC Certification Ltd - Princes Risborough
- IFC Wire Components Ltd - Lydney
- Ifeline - Nottingham
- Ifftner Solutions Ltd - Ipswich
- IFH UK - London
- Ifield Computer Consultancy - East Grinstead
- Ifis Publishing Ltd - Reading
- IFM Electronic Ltd - Hampton
- Ifor Brynley Howells - Port Talbot
- Ifor Evans - Betws Y Coed
- Ifor G Jones - Machynlleth
- Ifor Williams Trailers Ltd - Corwen
- iforce Ltd - Molesey
- iForge - Twickenham
- IFP Building Services Consultants LLP - Godalming
- IFS Europe Ltd - West Malling
- IFS Group - Industrial Foam Systems Ltd - Kings Lynn
- Ifs Industrial Fastener Suppoies - Barrow in Furness
- IFS School of Finance - Canterbury
- iFull Productions - Coventry
- IG Ashbrook Fluids Handling - Northwich
- Ig Blair - Stonehouse
- Ig Bushby - Leyburn
- IG Consultants Ltd - Sheffield
- IG Global Services Ltd - London
- Ig Hinman - Oakham
- IG Industries Plc - Brigg
- Ig Jones - Crickhowell
- IG Ltd - Cwmbran
- IG Sealed Units Ltd - York
- IG Tiling - Milton Keynes
- Igaware Ltd - Wallsend
- IGC Engineering Ltd - Chorley
- IGDesign - Havant
- Ige Xao Ltd - Sheffield
- Iggesund PaperBoard Ltd a member of the Holmen Group - Workington
- Ightham Sandpit - Sevenoaks
- Igloo Home Air Conditioning Ltd - Redhill
- Igloo RPO Ltd - Berkhamsted
- Igloo Window Films Ltd - Prudhoe
- Igloos - Stevenage
- IGM Robotic Systems Ltd - Cannock
- Ignite Creative - Coventry
- Ignition Sales Ltd - Brighouse
- Ignus Ltd - Warwick
- Igoo Website Design - Liverpool
- Igp - Bristol
- Igranic Control Systems Ltd - Bedford
- igroup - Wrexham
- Igrox Ltd - Ipswich
- Igs Roberts and Sons - Taunton
- IGT Industries Ltd - Eastleigh
- IGTC Ltd - Loughborough
- Igus UK Ltd - Northampton
- Ih and J G Lewis - Llanbrynmair
- IH Borland Contractors Ltd - Kilmarnock
- IH Toby (Hardware) Ltd - Barking
- IHC Consultants - Prescot
- Ihkos Digital Ltd - Coventry
- IHL Walraven Ltd - Banbury
- ihotdesk Ltd - Birmingham
- ihotdesk Ltd - London
- ihotdesk Ltd - Manchester
- ihotdesk Ltd - Reading
- IHR Ideal Home Range UK Ltd - Stroud
- IHS (Formerly Technical Indexes) - Bracknell
- IHS Energy - Epsom
- II-VI UK Ltd - Oakham
- Iicon Ltd - Brentwood
- Iicorr Ltd - Aberdeen
- IID Solutions - Batley
- iimage Creative Marketing and Design - Reading
- IInstitute of Quality Assurance (IQA) - London
- iiyama (UK) Ltd - Stevenage
- Ij and A M Barks - Leek
- Ij and J A Davies - Fishguard
- IJ Blakey Haulage Co Ltd - Hull
- Ij Deacon - Leyland
- IJ Dewhirst Ltd - Sunderland
- Ij Evans - Hereford
- Ij Faulkner and Son - Shrewsbury
- Ij Keith - Ellon
- Ij Masters - Wareham
- IJ Mellis - Edinburgh
- IJ Parkash Ltd - Manchester
- Ij Tooley and Sons - Diss
- IJC International Ltd - Torquay
- Ije Ashley - Oswestry
- IJF Engineering Ltd - Merthyr Tydfil
- IJG Machines - Londonderry
- IJH Solutions - Hartlepool
- IKA Retail Solutions Ltd - London
- Ikas World of Kitchens - Wickford
- Ikegami Electronics UK - Sunbury on Thames
- Iken Business Ltd - Bristol
- IKI Portable Solutions Ltd - Telford
- IKM Consulting Ltd - Glasgow
- IKM Network Communications Ltd - Fleet
- IKO Nippon Thompson Europe BV - Milton Keynes
- IKON AVS Ltd - Kidderminster
- Ikon International - Warrington
- Ikon Office Solutions - Leeds
- IKON Office Solutions PLC - Exeter
- Ikon Office Solutions plc - Leicester
- IKON Office Solutions plc - Maidstone
- Ikon Office Solutions plc - Slough
- iKOS - London
- IKV Tribology Ltd - Monmouth
- Il and Wa Jones - Tregaron
- IL Electrical Services - Manchester
- Il Horn - Holmfirth
- Il Ponte Ristorante - Croydon
- Ilait Design - Saltcoats
- Ilam Services Ltd - Reading
- Ilapak Ltd - Hayes
- Ilbery H and Son - Thame
- ILC Garage Doors Ltd - Ossett
- Ilchester Cheese Co Ltd - Yeovil
- Ileach Teleservices - Isle of Islay
- ILECS Ltd - Manningtree
- Iles Systems Ltd - Bedford
- Iles Waste Systems - Bradford
- Ilex Energy Consulting Ltd - Oxford
- Ilford Engineering Co Ltd - Basildon
- Ilford Imaging UK Ltd - Knutsford
- Ilga UK Ltd - Cowdenbeath
- ILGS Ltd - Chessington
- iLight Ltd - Tonbridge
- Ilkeston Fencing Supplies - Ilkeston
- Ilkeston Joinery Ltd - Ilkeston
- Ilkeston Skip Hire - Ilkeston
- Ilkeston Tractor Repairs - Nottingham
- Illig UK Ltd - Biggleswade
- Illingworth Partnership, The - Hungerford
- Illsley Ltd - Newbury
- Illston and Robson Ltd - Birmingham
- Illuma Lighting - Castle Donnington
- Illuminaries Ltd - Sheffield
- Illumination Design Const Ltd - Rochester
- Illumination Electrical Contractors Ltd - Borehamwood
- illustr8 Design & Marketing Ltd - Nottingham
- Illustra Ltd - Brighton
- illustral Design - Blackburn
- Ilme UK Ltd - Liverpool
- Ilmor Engineering Ltd - Northampton
- Ilott Commercials Ltd - Warrington
- Ilott Engineering Ltd - Poole
- ILP Electronics Ltd - Ashford
- ILP Protective Packaging - Carrickfergus
- ILPEA - Saltburn by the Sea
- Ilpra Systems (UK) Ltd - Swindon
- Ilsley and Challis Ltd - Basingstoke
- Iluvm - South Ockendon
- Ilva Ltd - Birmingham
- ILVA Outlet Centre - Doncaster
- Ilw and A Evans - Machynlleth
- Im and A E Clark - Horncastle
- Im and N J Irwin - Newcastle upon Tyne
- IM Crudgington Ltd - Bath
- IM Engineering - Glasgow
- Im Lakin - Cardiff
- Im Lewis - Llandrindod Wells
- IM Plastech Ltd - St Neots
- IM Products Ltd - Stockbridge
- Im Roper Caldbeck - Biggar
- IM Services - Romsey
- Im Willan - Llanbrynmair
- Im-Form Ltd - Dundee
- IMA Cooling Systems - St Albans
- IMA Ltd (International Moisture Analysers) - Leeds
- IMA UK Ltd - Wokingham
- Imac Systems Ltd - Fleet
- Image 1 Ltd - Digital Photography - Lancing
- Image 2 Photography - Rickmansworth
- Image 2000 - London
- Image 2000 Systems - Hull
- Image Audio Visual Solutions - Didcot
- Image Based Solutions - Norwich
- Image Blinds - Birmingham
- Image Branding - Londonderry
- Image Business Machines - Yate
- Image Business Systems Ltd - Didcot
- Image Ceilings Ltd - Sutton
- Image Chemical Products Ltd - Accrington
- Image Commercial Interiors Ltd - Wimborne
- Image Computer Systems Ltd - Poole
- Image Consultants - Neath
- Image Control - Oxford
- Image Creation - Worcester
- Image Data Group Ltd - Hull
- Image Envelopes - Milton Keynes
- Image Factory, The - Chippenham
- Image First Corporate Clothing Ltd - Leeds
- Image Grafix - Swanley
- Image House Ltd - Birmingham
- Image Joinery - Wigan
- Image Line Communications Ltd - London
- Image Logo UK Ltd
- Image Management Technologies Ltd - Petersfield
- Image Matters - Rochester
- Image On - South Ockendon
- Image Optics Components - Basildon
- Image Packaging Ltd - Wisbech
- Image Plastic Ltd - Stoke on Trent
- Image Plastics - Birmingham
- Image Playgrounds - York
- Image Plus - Coventry
- Image Polishing - Birmingham
- Image Printer Repairs - Belfast
- Image Printing Co Ltd - Matlock
- Image Projections Co Ltd - Horsham
- Image Publications - Aberdare
- Image Quality Systems Ltd - Uxbridge
- Image Registrations - Hessle
- Image Runner - Haywards Heath
- Image Safetywear Ltd - North Ferriby
- Image Science Ltd - Oxford
- Image Scotland Ltd - Musselburgh
- Image Security Ltd - West Drayton
- Image Sign Co - Ely
- Image Signs - Todmorden
- Image Store Ltd - Newbury
- Image Styles - Tipton
- Image Technical Services - Belfast
- Image Video - Llanelli
- Image Wheels International Ltd - Tipton
- Image X Press - London
- Image-ry - Radlett
- image2output Ltd - Hatfield
- Imagechem Ltd - Dunstable
- Imagees Ltd - Stoke on Trent
- Imagefarm Ltd - London
- ImageHolders - London
- Imagematsdirect UK Ltd - Bury
- Imagenta Moulding Plc - Worksop
- Images - Livingston
- Images At Work Ltd - Salisbury
- Images for Industry Ltd - Kingston upon Thames
- Images Labels Ltd - Sheffield
- Images Plus - Cheltenham
- Images Storage and Partitioning Ltd - Dartford
- ImageStor Ltd - London
- Imagewise Reprographics Ltd - Eastleigh
- Imageworks Colourprint - Stockport
- Imagey - London
- Imagic (UK) Ltd - Pewsey
- Imagik - Luton
- Imagin Products Ltd - Dunfermline
- Imaginatik Ltd - Southampton
- Imagination Signs - Chichester
- Imaginative Cuisine Ltd - Reading
- Imaginative Icing - Scarborough
- Imagine (AMESim) Ltd - Milton Keynes
- Imagine Consulting - Bristol
- Imagine dpm Ltd - Hull
- Imagine Inflatables - Lutterworth
- Imagine Pottery Ltd - Warminster
- Imagine Workwear Ltd - Leicester
- Imagineering - Peterhead
- Imagineering - Sittingbourne
- Imagineering Plastics - Bristol
- Imagineers Ltd - High Wycombe
- Imaginet - Cardiff
- Imaging Associates Ltd - Bicester
- Imaging Business Systems - Belfast
- Imagi