Company Index
- D A B - Rotherham
- D A C Handling Ltd - Rotherham
- D A C Steels Ltd - Sheffield
- D A Culling - Norwich
- D A Design - Swindon
- D A French - Radstock
- D A Herrmann - East Molesey
- D A Kettlewood - Selby
- D A M T Ltd - Newport Pagnell
- D A Mason - Crewe
- D A Price - Builth Wells
- D A T Images - Maldon
- D A T Mechanical Services - Camberley
- D Allen Engineers - Lairg
- D and A - Manchester
- D and A Fabrications - Ashton in Makerfield
- D and B - Rotherham
- D and B Darke Ltd - Peterborough
- D and B Gardner - Norwich
- D and B Scaffolding - Ongar
- D and C - Cirencester
- D and C Engineering - Bude
- D and C Transmissions - Greenford
- D and D Buckle - Stowmarket
- D and D Engineering - Louth
- D and D Engineering (Hull) Ltd - Hull
- D and D Fabrications - Wigan
- D and D Fine Limits - Hampton
- D and D Hydraulics - Stockton on Tees
- D and D International Valves Ltd - Bury St Edmunds
- D and D Iron Craft - Crook
- D and D Joinery - Belfast
- D and D Powder Coatings - Coventry
- D and D Stainless - Livingston
- D and E Architectural Hardware Ltd - Peterborough
- D and E Components Ltd - Strabane
- D and E Hughes Metal Merchants - Rochdale
- D and E Metal Fabrications - Shipley
- D and E Precision Engineering - Walsall
- D and F Steels Ltd - Leeds
- D and G Engineering - Weston super Mare
- D and G Fire Protection Ltd - Dumfries
- D and G Joinery - Sunderland
- D and H Engineering Ltd - Leicester
- D and H Equipment and Service - Manchester
- D and HP Blinds - Ilford
- D and J (Steels) Ltd - Wolverhampton
- D and J Blinds - Sutton Coldfield
- D and J Engineers and Sons - Camelford
- D and J Leisure Services Ltd - Hull
- D and J Ltd - Sheffield
- D and K Fabrications - Leicester
- D and K Singer - Aberdeen
- D and L Blinds - Swindon
- D and L Pine Furniture - Newcastle upon Tyne
- D and L Plumbing and Heating Services - Coventry
- D and L Sheet Metal - Newcastle upon Tyne
- D and M - Leicester
- D and M Connell - Bradford
- D and M Electroplating Ltd - Wolverhampton
- D and M Engineering (Nuneaton) Ltd - Nuneaton
- D and M Engineering Ltd - Farnham
- D and M Engineering Services - Windsor
- D and M Farm Services - Londonderry
- D and M Porter Ltd - Penrith
- D and M Powder Coatings - Batley
- D and M Towing - Sleaford
- D and M Trailer Services - Glasgow
- D and N Fabrication Ltd - Norwich
- D and P - Nottingham
- D and P Joinery Manufacturers - Nottingham
- D and P Kendrick - Aldershot
- D and P Metals Ltd - Witham
- D and P Services - Bootle
- D and P Signs Ltd - Coventry
- D and Q - Banbridge
- D and R Clements - Settle
- D and R Engineering Services Ltd - Renfrew
- D and R Fabrications - Winsford
- D and R Joinery - Durham
- D and R Stainless Steel Products - Sheerness
- D and R Structures Ltd - Chichester
- D and S - Batley
- D and S Boiler Services - Oxford
- D and S Engineering Co - Leicester
- D and S Engineering Services Ltd - Newport
- D and S Grinding Co - Sheffield
- D and S Metalcraft - Chard
- D and S Metals - Forres
- D and S Precision Coatings - Biggleswade
- D and S Ultra-Clean Ltd - Runcorn
- D and T Industrial Finishers - Leighton Buzzard
- D and T Mechanical Services Ltd - Sidcup
- D and T Mobility Services - Caerphilly
- D and T Precision Engineering Ltd - Southampton
- D and T Render Shower Trays Ltd - Pontefract
- D and T Turned Parts Ltd - Tilbury
- D and V Young Ltd - Swansea
- D and W Joinery Ltd - Sutton in Ashfield
- D and W Metals - Stourbridge
- D Anderson - Banchory
- D B Engineering Services - Barry
- D B Interiors Manufactured Joinery - Manchester
- D B M Joinery - Cannock
- D B Pallet Services - Grimsby
- D B R Associates Ltd - Folkestone
- D B S Midlands Ltd - Coventry
- D B Signs - Lowestoft
- D B T Engineering - Preston
- D Barton Associates - Colchester
- D Beacock and Son - Scunthorpe
- D Bewhay Ltd - Borehamwood
- D Blagbrough Engineering - Telford
- D Boyd Engineering Services Ltd - Annan
- D Brash and Sons Ltd - Cardiff
- D C - Flint
- D C Associates - Manchester
- D C B Welding Design - Walkerburn
- D C Blinds - Strabane
- D C Car Repairs - Oxford
- D C Daly - Newtownards
- D C E Joinery - Runcorn
- D C Farquhar and Partners - Glasgow
- D C H Joinery - Hassocks
- D C Hargreaves - Knaresborough
- D C Judd - Nottingham
- D C L Ltd - Weston super Mare
- D C M L - Oldham
- D C Powder Coatings - Daventry
- D C R Car and Bike Sales - Launceston
- D C S - Bedford
- D C Services - Crewkerne
- D C V Precision Ltd - Farnham
- D C Woodhead and Partners - Pudsey
- D Camps - South Shields
- D Cooper - Aylesbury
- D Cumbley - Hinckley
- D D Blinds - London
- D D Engineering Services - Norwich
- D D P - Wareham
- D D P Precision Engineering - Letchworth
- D D S Engineering - Buntingford
- D D S Polishing - Willenhall
- D Dobson - Dungannon
- D Dunkerley and Son - Skegness
- D E Clarke - Cheddar
- D E G Simpson and Sons - London
- D E Gaskin - Thame
- D E Joinery - West Calder
- D E L Cornock - Coalville
- D E S Operations Ltd - Westhill
- D Engineering - Newtownabbey
- D F King - Canvey Island
- D F Mccallum and Associates - Newport (IOW)
- D F S Fixings - Leicester
- D Fraser and Co - Hamilton
- D G B Services - Scunthorpe
- D G E Ltd - Birmingham
- D G Engineering - Bangor
- D G Engineering - Newquay
- D G Engineering Co Ltd - St Helens
- D G Joinery - Belfast
- D G P Blacksmiths - Glasgow
- D G Pugh - Ilfracombe
- D G Scott Ltd - Alfreton
- D G Warm Air Heating - Orpington
- D G Warping - Nottingham
- D G Woodward - Bourne
- D H Autos - Newcastle
- D H B Machines Ltd - Walsall
- D H D Engineering Group Ltd - Manchester
- D H Engineering - Cambridge
- D H Engineering - Clacton on Sea
- D H King - Norwich
- D H P Engineers Ltd - Rotherham
- D H Squire - Nottingham
- D Henry Joinery - Houghton le Spring
- D Hurrell - Kingsbridge
- D I Arnold and Son - Haverfordwest
- D I Burgess - Luton
- D Ibbotson and Son - Barnsley
- D J Allen - Sheffield
- D J Allwood - London
- D J Armstrong - Galashiels
- D J Bennett - Woking
- D J Blind's - Waltham Cross
- D J Brown - St Albans
- D J Cook - Northampton
- D J Craddock and Sons - Redditch
- D J F Plumbing and Heating - Peterborough
- D J Fellows and Sons - Pontypool
- D J Gatfield - Hungerford
- D J Haney Fabrications - Rowley Regis
- D J Jasper Ltd - Rowley Regis
- D J Joinery Systems Ltd - Mold
- D J Latham Joinery and Carpentryservices - Middlewich
- D J M - Bacup
- D J M Tools and Industrial Supplies Ltd - Stratford upon Avon
- D J Mandley - Stockport
- D J Mccarthy Associates Ltd - Huddersfield
- D J Morrall - Rugby
- D J N Ltd - Seaham
- D J Partridge - Bures
- D J Poole - Winsford
- D J Sillito - Oakham
- D J Textiles Ltd - Ludlow
- D J Transmission Ltd - Falmouth
- D J Transmissions - Exeter
- D J Transmissions Ltd - Newton Abbot
- D J Transport - Alton
- D J Watts - Driffield
- D J Williams - Wisbech
- D J'S - Bodmin
- D Jones - Eastleigh
- D K Engineering - Shrewsbury
- D K Jackson - Luton
- D K S Waites Public Health Engineering Ltd - Cirencester
- D Kiely Engineer - Bury
- D L Fabrications Ltd - Paisley
- D L M Lift Truck Services - Derby
- D L R Joinery - Doncaster
- D L R Racing - Broadstairs
- D L S Electronic Services Ltd - Northampton
- D L Supplies - Harrow
- D L Tinkler - Norwich
- D L Wilson - Altrincham
- D Leonard and Co Ltd - Bridgnorth
- D M Auto Services - South Shields
- D M G - Kings Langley
- D M H Joinery Ltd - Edinburgh
- D M J Engineering - Hexham
- D M K Contracts - Belfast
- D M P Consulting Engineers - Inverness
- D M R Engineering Services Ltd - Liverpool
- D M Racing - Taunton
- D M S - Doncaster
- D M S Stainless Ltd - Hereford
- D M Signcraft - Enfield
- D M Signs - Invergordon
- D Mccallum and Son - Stirling
- D Mcgrath - Greenford
- D Middleton - Batley
- D Mills and Co - Todmorden
- D Mitchell Plant Sales - Castleford
- D Morgan Welding - Whitstable
- D Morrison Machine Services - Londonderry
- D Moss - Thame
- D N and R Cameron - Arbroath
- D N Gearboxes - Blackpool
- D N Prosser Plumbing and Heating Ltd - Worthing
- D NS Windows Ltd - Birmingham
- D O C - Southend on Sea
- D Oliver - Melrose
- D P Consulting Engineers Ltd - Chichester
- D P D Components Ltd - Doncaster
- D P Engineering - Birkenhead
- D P Engineering - Camberley
- D P Furiture Express - Hull
- D P L - Bromley
- D P Oliver - Saltash
- D P R - Lifton
- D P Sargent - Pevensey
- D P Steels - Wolverhampton
- D Palmer and Sons - Clacton on Sea
- D Parish Engineering Ltd - Bury St Edmunds
- D Platt - Leamington Spa
- D Pritchard Associates - Abergavenny
- D R and M R Hallett - Tarporley
- D R Blinds Ltd - Alresford
- D R C Metallurgical Ltd - Sheffield
- D R Case and Son - Brighton
- D R Joinery and Laminated Flooring - Sale
- D R P Bearings and Transmission Ltd - Grimsby
- D R Parr - Isles of Scilly
- D R R Engineering Ltd - Stansted
- D R S Cases Ltd - London
- D R Williams - Wokingham
- D Reynolds and Sons - Horsham
- D S A Blinds - St Neots
- D S and B Engineering Ltd - Barnstaple
- D S Heating Specialists - Dunstable
- D S I - Nottingham
- D S Izzard - Sandy
- D S Joinery - Penzance
- D S Marsh - Dudley
- D S Metals - Goole
- D S Partnership - London
- D S Pickford - Manchester
- D S S Safety Services Ltd - Worksop
- D S Scrap Metals - London
- D S T Group Ltd - Morecambe
- D Saunders Joinery - Blakeney
- D Shaw - Larkhall
- D Sinclair - Folkestone
- D Sloan Joinery - Downpatrick
- D Smith - Paisley
- D Stephenson Race Bike Preparation - Louth
- D Sullivan Metals - London
- D Suttle and Associates - Godstone
- D Swinley Engineering Ltd - Kirkcaldy
- D T C - Basingstoke
- D T C Ltd - Sheerness
- D T Cabinets - Leeds
- D T Dewitt Associates - Halstead
- D T Stone - Nottingham
- D Thackerey - Barnsley
- D Tipton - Witney
- D Tobias Ltd - Glasgow
- D V Watkins - Leominster
- D W Engineering Solutions Ltd - Bristol
- D W Green - Bourne
- D W Harte Plumbing and Heating - Letchworth Garden City
- D W Hire - Southampton
- D W I Metalwork Ltd - Henley on Thames
- D W J Engineering - Horley
- D W Little - Carlisle
- D W M Engineering - Southport
- D W Marshall and Co Ltd - Peterlee
- D W Podmore - Leek
- D W Pointer and Partners Ltd - Bromsgrove
- D W Precision Engineer - Wickford
- D W Presley Ltd - Kingsbridge
- D W Sheet Metal Machinery - Cambridge
- D W Wright and Son - Keighley
- D Watson and Sons - Egremont
- D Wheatland - Redhill
- D Wilson - Birmingham
- D Wooldridge - Walton on Thames
- D Young Joinery Manufacturers - Durham
- D&A Sheet Metal - Leicester
- D&L Wrought Ironwork - Wigan
- D&M Signs and Vans - Oldham
- D'zign Engineering Ltd - Hartlepool
- D-Drill (Master Drillers) Ltd - Sheffield
- D-Tech Engineering - Stockport
- D-Zign Custom Helmets - Macclesfield
- D2 - Bradford
- D2 Food Systems Ltd - Harpenden
- D2 Ltd - Altrincham
- DA Cooper and Sons Ltd - Rotherham
- DA Forgie - Limavady
- Da Plating Jigs and Light Fabrications Ltd - Smethwick
- DA Safety Ltd - Nottingham
- DA Wilkins Ltd - Southampton
- Da Wright Engineering - Twickenham
- DAB Engineering - Rotherham
- DAB Engineering Co Ltd - London
- Dab Handling - Glasgow
- DAB Pumps Ltd - Bishops Stortford
- Dab Systems Ltd - Ashbourne
- DABInCo Ltd - Liphook
- Dac Tooling Ltd - Leicester
- Dacar - Ashford
- Dacecrown Ltd - Birmingham
- Dacmac - Slough
- Daco Engineering and Packaging UK Ltd - Westbury
- Dacol Engineering Ltd - Mansfield
- Dacol Ltd - Colchester
- Dadco Ltd - London
- Daften Ltd - Wadebridge
- Dagar Tools Ltd - Telford
- Dah Components - Aylesbury
- Daido Industrial Bearings Europe Ltd - Ilminster
- Daifuku Europe Ltd - Slough
- Daifuku Ltd - Burton on Trent
- Daihatsu Diesel (Europe) Ltd - London
- Daihatsu Entrance Systems Ltd - Bootle
- Daikin Airconditioning UK - Weybridge
- Daily Care Ltd - Ripon
- Dainese Pro Shop - Bristol
- Dainton Lift Services - Bromley
- Dairy Electrical and Refrigeration - Shaftesbury
- Dairy Pipe Lines - Saffron Walden
- Dairy Scope Northwest Ltd - Nantwich
- Dairy-Scope - Shrewsbury
- Dairyflow - Kilmarnock
- Daisydirect.Com - Edinburgh
- Dakota Ho - Coventry
- Dalair Ltd - Harrow
- Dalair Ltd - Manchester
- Dalair Ltd - Wednesbury
- Dale and Co (Preston) Ltd - Preston
- Dale and Co Ancoats Ltd - Manchester
- Dale Ellison Joinery - Lincoln
- Dale Engineering - Warrington
- Dale Fabrications - Washington
- Dale Fabrications (Kent) Ltd - Canterbury
- Dale Hardware - Ossett
- Dale Industrial - Rochdale
- Dale Kane Trailers - Castlewellan
- Dale KR - Hereford
- Dale Process Engineering Ltd - Tewkesbury
- Dale Street Warehouse Ltd - Manchester
- Dale Williams - Northampton
- Daleborne Timber Products - Gravesend
- Dalebrook Engineered Turned Parts - Stourbridge
- Dalepark Motion Controls - Lanark
- Dales Engineering Ltd - Peterhead
- Dales Fabrications Ltd - Ilkeston
- Dales Office Supplies and Equipment Ltd - Leeds
- Daleside Welding - Carnforth
- Dalesman Fabrications - Leeds
- Dalesway Mobility - Wellington
- Dalesway Mobility South - Weston super Mare
- Dalewood Mouldings - Sheffield
- Dalgleish Castings Ltd - Worcester
- Dalkia Energy Management Ltd - Glasgow
- Dalkia plc - Staines
- Dallas Fitted Furniture - Bristol
- Dallas Wright - Portsmouth
- Dallat Group - Coleraine
- Dallmac - Southampton
- Dalloway Precision Engineering - Stourbridge
- Dalman and Narborough Ltd - Birmingham
- Dalmar Lesuire Ltd - Wimborne
- Dalmeny Metal and Brass Company - South Queensferry
- Dalon International Ltd - Harlow
- Dalta Manufacturing Ltd - Leicester
- Dalton Demolition UK Ltd - Airdrie
- Dalton ID Systems Ltd - Henley on Thames
- Dalton Lucerne Rare Fibres Ltd - Macclesfield
- Dalton Power Products Ltd - Grantham
- Daltons Atv's - Lampeter
- Daly Engineering - Troon
- Daly Garage Doors - East Kilbride
- Daly Heating Contractors Ltd - Coventry
- Dalzier Conservatories - Motherwell
- Damar Group Ltd - Radstock
- Damask Well Ltd - Aberdeen
- Dambach UK Ltd - Richmond
- Dame A - Market Rasen
- Dames and Moore - Leeds
- Dames Non Ferrous Metal Recyclers Ltd - Derby
- Damper Technology Ltd - Ilkeston
- Damproof Engineering Services Ltd - High Peak
- Damstahl Stainless Ltd - Telford
- Dan Ash - Mountain Ash
- Dan Display and Imaging Ltd - Pontyclun
- Dan Medica North Ltd - Manchester
- Dan Wood Group Ltd - Colchester
- Dan-Doors UK Ltd - Grimsby
- Dana Corp - Stratford upon Avon
- Dana Fluid Routing Group - Birmingham
- Dana Glacier Vandervell - Kilmarnock
- Danalex - Stourport on Severn
- Danatrol Ltd - Loughborough
- Dancing Anvils Forge - Kings Lynn
- Dando Drilling International Ltd - Littlehampton
- Dane Group plc - Newcastle upon Tyne
- Danelock Engineering Ltd - Burton on Trent
- Danetre Workshop Supplies Ltd - Daventry
- Danfast Ltd - Hull
- Danflo Engineering - Birmingham
- Danfood Technology Ltd - Hitchin
- Danfoss Ltd - Uxbridge
- Danglo Components Ltd - Hitchin
- Daniel Ruddy - Dungannon
- Danieli Davy Distington Ltd - Sheffield
- Daniels Fans Ltd - Llanelli
- Daniels Precision Engineering - Southall
- Dankeith Leisure Park Ltd - Kilmarnock
- Dankroy - London
- Danlett Ltd - Huddersfield
- Danley Engineering Services Ltd - Blackburn
- Danline International Ltd - Llanrwst
- Danly Ltd - Halesowen
- Danmar Engineering - Edinburgh
- Dannah - Reading
- Danny Ball Woodwork - Matlock
- Danock Fabrication - Stoke on Trent
- Danor Engineering Ltd - London
- Danstan Engineering Ltd - Halesowen
- Dantech Ltd - March
- Dantherm Filtration Ltd - Leeds
- Danti Engineering - Kidderminster
- Dantone Precision Engineering - Barnsley
- Danum Blinds - Doncaster
- Danvac Ltd - Shrewsbury
- Dapp Hydraulics - Walsall
- Dappat Engineering Ltd - Hull
- Dar-Val Engineering Ltd - London
- Darad Fabrications Ltd - Atherstone
- Daralay Engineering Ltd - Walton on Thames
- Daray Lighting Ltd - Leighton Buzzard
- Darchem Engineering Ltd - Stockton on Tees
- Darcy - Oldham
- Darcy Engineering Services - Swansea
- Dare 44 - Lymington
- Dare UK Ltd - Colchester
- Darenth Valley Building Services Ltd - Swanley
- Darenth Valley Metals - Sevenoaks
- Darfen Durafencing - Doncaster
- Darian Trading Ltd - Market Harborough
- Darley Forge - Bridlington
- Darlington (Non Destructive Testing) Ltd - Wallsend
- Darlington Heat Treatment Ltd - Newton Aycliffe
- Darlow Precision Engineering - Worksop
- Darncrest Scrap Metal - Barking
- Darnell's Ltd - Witney
- Darnells Ltd - Oxford
- Darnturn Engraving - Darlington
- Daro Engineering (Stafford) Ltd - Stafford
- Daro Factors Ltd - London
- Daroch Motors - Birmingham
- Darpor Engineering - Winkleigh
- Darrell Fieldhouse Patterns - Rushden
- Darren H French and Sons Plumbing and Heating - Barnoldswick
- Darren Shayler - Northampton
- Darren Thompson Joinery Contractors - York
- Darron Precision Engineering - Rotherham
- Dart Valley Systems Ltd - Paignton
- Dartex Coatings Ltd - Long Eaton
- Dartford Blinds - Dartford
- Dartford Metal Polishers Ltd - Dartford
- Dartford Metalcrafts Ltd - Rochester
- Dartmoor and Tamer Joinery - Calstock
- Dartmouth Associates Ltd - Birmingham
- Dartmouth Global Trading Co Ltd - Halesowen
- Darwell Fabrication - Kenilworth
- Darwins Holdings Ltd - Sheffield
- Daryl - Skelmersdale
- Daryl Industries Ltd - Wallasey
- Das Air Engineering Ltd - Horley
- DAS Engineering Services Ltd - Leeds
- Dash Dave Engineering - York
- Dasic Marine Ltd - Chandlers Ford
- Dasl Specialist Services Ltd - St Austell
- Dass Manufacturing Ltd - Wallington
- DAT Reproductions Ltd - Chatham
- DAT Tinstamp Ltd - Dagenham
- Data Acquisition Design Ltd - Crawley
- Data Collection Ltd - Bognor Regis
- Data Paper Supplies - Mold
- Data Physics UK Ltd - Hailsham
- Data Powertools Ltd - Cardiff
- Data Time Systems - Nottingham
- Data Tooling and Engineering Services Ltd - Ashford
- Data Vision Europe - Wootton Bassett
- DataCAM Models - London
- Datacomms Warehouse Ltd - Amersham
- Datacut Engineering Ltd - Prescot
- Datagen Information Management - Glasgow
- Datamac Engineering Services Ltd - Tewkesbury
- Datamach Ltd - Coventry
- Datapaq Ltd - Cambridge
- Dataracks - Cambridge
- DATARAX (A Division Of Databond) - Ipswich
- Datasights Ltd - Enfield
- Datastor Ltd - Sutton
- Datastor Technology Ltd - Wotton under Edge
- DataTrak Ltd - Downham Market
- Dathan Tool and Gauge Co Ltd - Huddersfield
- Dato Fabrications - Birmingham
- Datoc Engineering Ltd - Crawley
- Daton Precision Engineering - Walsall
- Datona Ltd - Rushden
- Datong Electronics Ltd - Leeds
- DATS - Warrington
- Datum Alloys Ltd - Kingsbridge
- Datum Electronics Ltd - East Cowes
- Datum Engine Services - Egham
- Datum Engineering - Sale
- Datum Engineering - Walsall
- Datum Engineering (UK) Ltd - Leicester
- Datum Precision Engineering - Radstock
- Datum Precision Engineering Ltd - Sandhurst
- Datum Products Ltd - Horsham
- Datum Roadsweepers - Durham
- Datum Special Fasteners Ltd - Cannock
- Datum Tool Design - Ballynahinch
- Daubney Services - Norwich
- Daubneys - Richmond
- Davall Stock Gears - Hatfield
- Davalow Metal Finishing Co Ltd - Wolverhampton
- Davart Fasteners - Evesham
- Dave Burlow - Cheltenham
- Dave Coton (Design) - Cwmbran
- Dave Cox - Fareham
- Dave Crabtree Engineering - Preston
- Dave Eagle - Nottingham
- Dave Edwards Sheet Metal Fabrications - Stoke on Trent
- Dave Felton - Macclesfield
- Dave Kay Joinery - Richmond
- Dave Millen Joinery - Stockport
- Dave Ridley - Heathfield
- Dave Smith - Preston
- Dave Stead Design and Joinery - Chislehurst
- Dave The Frame - Birmingham
- Dave The Gas - Westcliff on Sea
- Dave Walker - Cradley Heath
- Dave Wilkes Joinery - Brierley Hill
- Davenshaw Garage Equipment Ltd - Congleton
- Daventech Ltd - Telford
- Daventry Guarding Ltd - Daventry
- Daventry Metal Products Co Ltd - Daventry
- Daver Steels Ltd - Sheffield
- Davey Machining Centre - Ipswich
- Davey Site Services Ltd - Milford Haven
- Davic Ltd - Sawbridgeworth
- David A Kendall - Bristol
- David Alan Heath - Banbury
- David B Swift (Rambaudi) Ltd - Scarborough
- David Band Metals Ltd - Perth
- David Barnes Signs - Grays
- David Bennett Ceramic Services - Stoke on Trent
- David Bewley Plumbing and Heating - Doncaster
- David Bilton Engineering Ltd - North Shields
- David Blanks - Royston
- David Bowler and Sons Ltd - Southampton
- David Brown - Whitland
David Brown Engineering Ltd - Huddersfield- David Brown Hydraulics Ltd - Poole
- David C T Crook - Ashton under Lyne
- David Clayton - Nottingham
- David Cochrane Ltd - Duns
- David Cookson Photography - Wigan
- David Daccus and Associates - Leeds
- David Dexter Associates - London
- David Dowling Ltd - Romford
- David Edwards and Associates - Clevedon
- David Eley Associates - Ulverston
- David Engineering - Willenhall
- David Eyre - Nelson
- David Ford - Sheffield
- David Gathercole Race Preparation - Peterborough
- David Gibson - Bangor
- David Graham - Cobham
- David Gray - Bath
- David Hardie Engineering Ltd - Dumfries
- David Harrison Handling Solutions Ltd - Ely
- David Hather - Doncaster
- David Hitchin - Coventry
- David Hoare Ltd - Chichester
- David Hodkin - Matlock
- David Horn Communications Ltd - Luton
- David Hulse Engineering and Fabrication - Stoke on Trent
- David Hunt Castings Ltd - Romsey
- David Irons and Sons Ltd - Forfar
- David John Lighting Emporium Ltd - Manchester
- David John Ward - Feltham
- David K Harrison Welding Services - Liversedge
- David Kellett and Partners Ltd - Hereford
- David Kelsall - Swansea
- David Kirkby Associates - Godalming
- David Kotlewski - Cupar
- David Latham (Steel Trading) Ltd - Coleford
- David Laycock - Colne
- David M Price - Lampeter
- David Mallinson - Huddersfield
- David Martin Joinery Contractor - Blairgowrie
- David Matthews Ltd - Swansea
- David Mccullough and Co - Belfast
- David Mcnulty - Leicester
- David Mellor Design Ltd - Sheffield
- David Newman and Co - Orpington
- David Olive - Gloucester
- David Paterson Ltd - Elgin
- David Payne Gas Heating Engineers and Plumbing Services - London
- David Perkins Site Welding - Burton on Trent
- David R Bracey - Cambridge
- David R Milward - Macclesfield
- David Reekie and Sons Ltd - Renfrew
- David Rennie - Talybont
- David Richards Engineering Ltd - Southampton
- David Roche Geoconsulting Ltd - Exeter
- David Ross (Fabrications) Ltd - Leicester
- David T Hedges - Banbury
- David Thomas J (Engineering) - Walsall
- David Thorn and Sons Ltd - Leigh on Sea
- David Twelves Engineering - Sandbach
- David Vickers - Glossop
- David W Clarkson - Spalding
- David W Jones - Treharris
- David W Watt - Coniston
- David Walker Engineering Services - Ramsgate
- David Walter - Leicester
- David Warsop and Co - Barnsley
- David Webb - Bristol
- David Webster Ltd - Harlow
- David Wilkinson Ltd - Doncaster
- David Williams (Llandudno) Ltd - Llandudno
- David Wilson and Associates - Saltburn by the Sea
- David Witt Associates Ltd - Attleborough
- David Wolfenden and Co - Newbury
- David Young Associates Ltd - Wakefield
- Davidson Fabrications - Mold
- Davidson Site Services - Keighley
- Davidson Williams - Birkenhead
- Davies - Telford
- Davies and Nelson - Tewkesbury
- Davies Bearings - Llanelli
- Davies Bros - Birmingham
- Davies Engineering - Bridgwater
- Davies I - Crymych
- Davies Industrial Supplies - Letchworth
- Davies Joinery Products - Birmingham
- Davies Partnership - Chester
- Davies Precision Grinding Ltd - Birmingham
- Davies Refrigeration Services - Shrewsbury
- Davies Scrap Metals - Tredegar
- Davies Springs Ltd - Redditch
- Davies UK Environmental - Coventry
- Davies Woven Wire Ltd - Cradley Heath
- Davinci Creative Textiles - Walsall
- Davinson and Mason Ltd - Leicester
- Davis Access Platforms Ltd - Bristol
- Davis and Snell - Barnstaple
- Davis Cash and Co Ltd - Enfield
- Davis Derby Ltd - Derby
- Davis Engineering - Maryport
- Davis Engineering - Poole
- Davis Maintenance Engineering - Nottingham
- Davis Ornamental Ironwork - St Helens
- Davis Pneumatic Systems Ltd - Plymouth
- Davis Scientific Treatments Ltd - Tewkesbury
- Davis Scrap Metals - Tadworth
- Davis Sheetmetal - Southampton
- Davis WH Ltd - Mansfield
- Davison and Pack Ltd - Rushden
- Davison Fork Lift Ltd - Wolverhampton
- Davison Tyne Metal Ltd - Hexham
- Davjon Engineering Services - Wolverhampton
- Davlec Ltd - Welshpool
- Davley Fabrications - Halifax
- Davmerry Ltd - London
- Davpal Pallets - Daventry
- Davrek Engineering - Eastbourne
- Davro Iron and Steel Co Ltd - Bridgnorth
- Davrod Engineering - Caernarfon
- Davromatic Precision Ltd - Rugby
- Davron - Stockport
- Davturn Repitition Turn Parts - Bromsgrove
- Davwell Engineering Hereford - Hereford
- Davy Co Ltd - Gateshead
- Davy Engineering Ltd - Solihull
- Davy Roll Co Ltd - Gateshead
- DavyMarkham - Sheffield
- Dawes Cycles Ltd - Birmingham
- Dawkins - Brampton
- Dawley Metals - Kingswinford
- Dawmed International Ltd - Rotherham
- Dawn Engineering - Cambridge
- Dawn Fire - High Wycombe
- Dawn Retail Systems Ltd - Airdrie
- Daws Blinds - Swindon
- Dawson and Son Ltd - Leeds
- Dawson Bowman Ltd - Glasgow
- Dawson Construction Plant Ltd - Milton Keynes
- Dawson Downie Lamont Ltd - Glenrothes
- Dawson MMP Ltd - Barnsley
- Dawson Precision Components Ltd - Oldham
- Dawson Shanahan Ltd - Potters Bar
- Dawson Sign and Design - Manchester
- Dawsonrentals Portable Cold Storage Ltd - Sutton in Ashfield
- Dawsons Fabrics - Dewsbury
- Dawton Engineers Ltd - Sheffield
- Day and Zimmermann Ltd - Stockport
- Day Recycling Ltd - Northampton
- Day Signs - Totnes
- Daybrook Interiors - Kingston upon Thames
- Daylight Management Systems Ltd - Bradford
- Daylight Textiles - Manchester
- Dayshell Precision Engineering - Scunthorpe
- Dayton Engineering Co - Coventry
- Dayton Engineering Ltd - Rhyl
- Dayton Granger International - High Wycombe
- Dayton Progress Ltd - Kenilworth
- Daytona Blinds - Barry
- DB Broadcast Ltd - Ely
- DB Controls Ltd - Doncaster
- DB Crane Ltd - Dudley
- DB Engineering (Ripon) Ltd - Ripon
- DB Engineering Ltd - Newport (Gwent)
- DB Engineering Services UK Ltd - Ashton under Lyne
- DB Fabrications and Installationservices - Liversedge
- DB Projects Ltd - Grangemouth
- Db Sheet Metal Engineering - Braintree
- DB Sheetmetals Ltd - Haverhill
- DBC Tools Ltd - Letchworth
- DBH Engineering - Lingfield
- DBM Machinery Installations - Smethwick
- DBS Brand Factors - St Helens
- DBT GB Ltd - Ilkeston
- DBT-GB - Motherwell
- DC Auto Engineering - Ballymena
- DC Developments Engineering Ltd - Norwich
- DC Dingwall - Kingussie
- DC Engineering - Newport (IOW)
- DC Hall Ltd - Milton Keynes
- DC Ould - St Austell
- DC Plastics and Co - Birmingham
- DC Welding Fabrication - Ledbury
- DC White and Partners Ltd - Hook
- DC-Tek Ltd - Arlesey
- DCA Design International - Warwick
- DCE Holne (R and D) Ltd - Kingsbridge
- DCE Holne Ltd - Buckfastleigh
- DCF Associates Ltd - Gloucester
- DCM Drillquip Ltd - Nuneaton
- Dcr Engineering Co Ltd - Newton Aycliffe
- DCV Engineering - Wellingborough
- DD Engineering - Kings Lynn
- Dd Fabrications - Carlisle
- DD Lamson Plc - Sheffield
- DD Subsea - Insch
- DDC Dolphin Ltd - Poole
- DDC Engineering - Dalkeith
- DDL Pattern Shop - Glenrothes
- DDP Tools Ltd - Redditch
- DDZ Marine Ltd - Ayr
- De Broise - Somerton
- De Burgh - Liverpool
- DE Engineering Services - Aberdeen
- De Flow Ltd - Woodbridge
- De Graaff and Partners - Aylesford
- De Graaff Trailers - Woking
- De Havilland Aviation Ltd - Bridgend
- De Havilland Support Ltd - Cambridge
- De La Rue Systems Ltd - Belfast
- De Met Ltd - Kingswinford
- De Smet Rosedowns Ltd - Hull
- De Smith Medical Ltd - Bristol
- De Soutter Medical Ltd - Berkhamsted
- De Tech - Darlington
- De-Gruchy Joinery Ltd - Ammanford
- De-Icers (MHG) Ltd - Cheltenham
- De-Signs - Mansfield
- De-Soutter Medical - Berkhamsted
- De-Sta-Co (Destaco) Cpi UK - Wolverhampton
- Deakin and Francis Ltd - Birmingham
- Deakin Walton Ltd - Harrogate
- Deakin Walton Ltd - Haslemere
- Deal Signs - Deal
- Dealcompact Ltd - Mountain Ash
- Dealercast Ltd - Manchester
- Dealersense Ltd - Chorley
- Deallow Ltd - Eastbourne
- Dealpage Ltd - Oakham
- Deamco Ltd - Slough
- Dean Choice Ltd - Stockport
- Dean Engineering - Buckingham
- Dean Joinery - Coleford
- Dean Precision Engineering Co - Worksop
- Dean Smith and Grace Ltd - Keighley
- Deane and Amos (Aluminium Systems) Ltd - Northampton
- Deane Joinery - Taunton
- Deans Engineering Supplies - Ellesmere Port
- Deans Systems Ltd - Beverley
- Deansfield Metal Finishing Co Ltd - Wolverhampton
- Dearle and Henderson Ltd - London
- Dearne Valley Conservatories Ltd - Barnsley
- Dearson Tools Ltd - Birmingham
- Deaton Joinery Ltd - Leicester
- Deatons Metal Centre - Chesterfield
- Deba Cooling Towers and Engineering Co Ltd - Dartford
- Debis Airfinance International Ltd - London
- Debonair Curtains and Blinds - Bridgnorth
- DeBurgh and Associates - Swadlincote
- Deburring Centre Ltd - Poole
- Deburring Services Ltd - Cheltenham
- Debut Doors - Kettering
- Deca Materials Handling Ltd - Wantage
- Dechmont - Broxburn
- Deci-Coin Automats Ltd - St Helens
- Decknology - Ottery St Mary
- Deckorflair Group - Burnley
- Declan Stewart - Banbridge
- Decma Ltd - Dudley
- Decor Blindmakers - Sheffield
- Decor Blinds - Birmingham
- Decor Blinds - St Helens
- Decor Blinds - Walsall
- Decor Interiors International Ltd - Watford
- Decor Iron - Wednesbury
- Decora - Belfast
- Decorative Art Metals Ltd - London
- Decorflair Ltd - Manchester
- Decorshade - Manchester
- Decra Roof Systems UK Ltd - Crawley
- Dectel Security Ltd - Basildon
- DED Ltd - Romney Marsh
- Dee Boiler Maintenance Co - Neston
- Dee Jay Machining Services - Burton on Trent
- DEE Services - Newtown
- Dee's Bespoke Joinery - Barton upon Humber
- Dee-Organ Ltd - Paisley
- Deecon - Bilston
- Deedmore Engineering - Coventry
- Deelee Engineering Services Ltd - Swadlincote
- Deeley Engineering - Bromsgrove
- Deep Blue Eng Solutions Ltd - Aberdeen
- Deep Blue Sign Co - Dartmouth
- Deep Sea Seals Ltd - Havant
- Deepack Plastics Ltd - Deeside
- Deepdale Engineering Co Ltd - Dudley
- Deepdale Solutions Ltd - Thirsk
- Deepdale Studio - Barton upon Humber
- Deepsea Engineering and Management - Epsom
- Deescan - Wrexham
- Deeside Engineering Services - Wrexham
- Deeside Generator Rewinds (North Wales) Ltd - Deeside
- Deeside Marine - Dumfries
- Deeter Electronics Ltd - High Wycombe
- Deeter Engineering Services Ltd - High Wycombe
- Deeter Weighing Systems - High Wycombe
- Defabs Engineering Systems Ltd - Derby
- Definitive Joinery Ltd - Pontypool
- Defuma - Huntingdon
- Deif (UK) Ltd - Stockport
- Deighton Engineers (Halifax) - Halifax
- Deighton Manufacturing UK Ltd - Bradford
- Deio Ltd - Hatfield
- Dekomte de Temple Kompensator -Technik (UK) Ltd - Moreton in Marsh
- Dekton Components (Leicester) Ltd - Leicester
- Del Engineering (UK) Ltd - Ammanford
- DEL Industrial Fastenings Ltd - Fleet
- Delap and Waller Ltd - Londonderry
- Delapena Honing Equipment Ltd - Cheltenham
- DeLaval Ltd - Cardiff
- Delavale Engineering Ltd - Bagshot
- Delbo Engineering Bradford Ltd - Bradford
- Delcane Ltd - Norwich
- Delfield Precision Engineering Co Ltd - Ruislip
- Delite Blinds - Hayes
- Delkor (UK) Ltd - Radstock
- Dell Engineering Ltd - Andover
- Delling Illuminated Display Systems Ltd - Watford
- Delmatic Ltd - London
- Delmer Precision Ltd - Romford
- Delmore - Bury St Edmunds
- Delog Manufacturing Company Ltd - Huddersfield
- Deloro Stellite - Swindon
- Delpetro Services Ltd - Deeside
- Delph Control Systems Ltd - Brierley Hill
- Delph Electrical Lifting Services Ltd - Brierley Hill
- Delphi Diesel Systems - Sudbury
- Delpro Ltd - Glossop
- Delrac ACS Ltd - Worcester Park
- Delron Services Ltd - Aylesford
- Delstar Engineering Ltd - Haverhill
- Delstron Systems - Burton on Trent
- Delta Aircraft Services Ltd - Ilkeston
- Delta Balustrades - Bristol
- Delta Balustrades - Sandbach
- Delta Business Equipment - Stockport
- Delta Caravans Ltd - Hull
- Delta Catalytic (UK) Ltd - Immingham
- Delta Design Systems Ltd - Clacton on Sea
- Delta Display - Stansted
- Delta Dynamics Ltd - Ellesmere Port
- Delta Engineering - Castleford
- Delta Engineering (GB) Ltd - Wolverhampton
- Delta Engineering Aviation Ltd - Cirencester
- Delta Fabrications - Huntingdon
- Delta Fire Ltd - Norwich
- Delta Fire Systems Ltd - Dudley
- Delta Fluid Products Ltd - St Helens
- Delta Garden Furniture - Cardiff
- Delta GBN Ltd - Wednesbury
- Delta Line Europe UK Ltd - Whitstable
- Delta Pacific Manufacturing Ltd - Ely
- Delta Precision Engineering - Seaham
- Delta Precision Engineering Ltd - Poole
- Delta Services Ltd - Braintree
- Delta Signs - Luton
- Delta Signs and Graphics Ltd - Bradford
- Delta Systems (Wisbech) Ltd - Wisbech
- Delta T Services Ltd - Billericay
- Delta Thermal Systems - Liverpool
- Delta Tooling - Horsham
- Delta Vacuum Precision Ltd - Manchester
- Deltacastle Confidential Recycling Services Ltd - London
- Deltacrest 2000 Ltd - Leamington Spa
- Deltair Airmotive Ltd - Waterlooville
- Deltamech Services - Diss
- Deltawaite Ltd - Workington
- Deltax Ltd - Southampton
- Deltec Industries Ltd - Poulton le Fylde
- Deltex Components Ltd - St Helens
- Deltic Engineering - Luton
- Delton Engineering - Ongar
- Delton Engineering Services - Swansea
- Delyn Metals - Holywell
- Delyn Metals Ltd - Flint
- Demacsmith Consultancy Ltd - Stroud
- Demag Cranes and Components Ltd - Banbury
- Demand Technology International Ltd - Fleet
- Demarchi Engineering - Chippenham
- Demax - Swaffham
- Demeq Ltd - Bradford
- Demkel Engineering - Rotherham
- Demma Building Controls - Birmingham
- Demon Bikes - Newcastle upon Tyne
- Demon Bikesport - Corby
- Demon International Ltd - Ivybridge
- Demtex Engineering - West Bromwich
- Denaco (UK) Ltd - Derby
- Denbec Fabrications Ltd - Bradford
- Denbigh Trailors - Holywell
- Denbighshire Stairlifts Ltd - Wrexham
- Denby and Sharp Ltd - Preston
- Denca Controls - Widnes
- Dench Engineering - Sheffield
- Denco Engineering - Slough
- Denco Ltd - Hereford
- Denco Ltd - Runcorn
- Dendrite Fabrications - Leek
- Denebank Precision Engineering (UK) Ltd - Sunbury on Thames
- Denford Ltd - Brighouse
- Denham Technical Services Ltd - London
- Denholm Rees and O'Donnell Ltd - Liverpool
- Denholt Industrial Fabrications - Halifax
- Denis Ferranti Group - Bangor
- Denis Wilson Partnership - Leeds
- Denis Wilson Partnership - Manchester
- Denison Hydraulics UK Division - Burgess Hill
- Denison Mayes Group - Leeds
- Denko Engineering and Supplies Ltd - Stockport
- Denley Engineering - Coventry
- Denley Hydraulics Ltd - Heckmondwike
- Denman Group Ltd - Reigate
- Denman Instrumentation Ltd - Hessle
- Denmay Steel - Brighton
- Denmic Engineering - Wakefield
- Denne Metal Finishing Ltd - Horsham
- Denner-Kelford Grinding Ltd - Birmingham
- Dennis Eagle Ltd - Warwick
- Dennis Hawkins Welding - Newport Pagnell
- Dennis Heath - Twickenham
- Dennis Lee and Co Ltd - Fakenham
- Dennis T Gale - Hull
- Denny Blade Co Ltd - Denny
- Denny Engineering Ltd - Norwich
- Denroy Precision Engineers Ltd - Stockport
- Dens Metals Ltd - Dundee
- Denso Manufacturing UK Ltd - Telford
- Denso Sales UK Ltd - Coventry
- Dent Instrumentation Ltd - Colne
- Dent Steel Services (Yorkshire) Ltd - Bradford
- Denton Blinds - Burton on Trent
- Denton Blinds - Manchester
- Denton Containers 2000 Ltd - Romney Marsh
- Denton Porter Partnership Ltd - Chelmsford
- Denton Pumps (Kent) Ltd - Tonbridge
- Denvic Ltd - Kidderminster
- Denward Manufacturing - Chelmsford
- Denwire Ltd - Dudley
- Denyer Signs - Worksop
- Denys Halsall Associates Ltd - Sidmouth
- DEP - Maidstone
- DePe Gear Company Ltd - Stoke on Trent
- Dependable Packs Ltd - Merthyr Tydfil
- Dependable Springs and Pressings Ltd - Wolverhampton
- Deprag Ltd - Whitchurch
- Deptford Sheet Metal - London
- DERA - Defence Evaluation and Research Agency - Rosyth
- Derbirch Fabrications Ltd - Grimsby
- Derby and Co Ltd - London
- Derby Bearings Ltd - Derby
- Derby Care and Mobility - Derby
- Derby Engineering Co Ltd - Derby
- Derby Groundworks Ltd - Derby
- Derby Mobilty Services Ltd - Ripley
- Derby Racing Services Ltd - Derby
- Derbyshire and Sons Ltd - Widnes
- Derbyshire Castings Ltd - Altrincham
- Derbyshire Engineering - Sheffield
- Derbyshire Industrial Sales Ltd - Chesterfield
- Derbyshire Packaging Systems - Chesterfield
- Dereham Conversions Ltd - Dereham
- Derek Anthony Ltd - Oldham
- Derek Braham - Crawley
- Derek Chinn - Bedford
- Derek Connor - Enniskillen
- Derek Durant Associates - East Grinstead
- Derek Franklin Associates Lifts Ltd - Colchester
- Derek Gammons Engineering Associates Ltd - Oldham
- Derek George Knowles - Manchester
- Derek H Bell Smith and Stewart - Newcastle upon Tyne
- Derek Hawkins - Northampton
- Derek Lane and Co Ltd - Exeter
- Derek Miller Scrap Metals - Kings Lynn
- Derek Parkinson - Grimsby
- Derek Parnaby Cyclones International Ltd - Ferryhill
- Derek Raphael - London
- Derek Scarboro Engineering - Boston
- Derek Senior - Hebden Bridge
- Derek Shipley Joinery - Burton on Trent
- Derek Taylor Engineering Ltd - Manningtree
- Derek Wright - Brighouse
- Deri Jones and Associates Ltd - Machynlleth
- Derian Engineering Ltd - Barrow in Furness
- Deritend Aviation Windings - Luton
- Deritend Engineering - Birmingham
- Deritend Group Ltd - Pontypridd
- Deritend Powder Coatings - Birmingham
- Deritent Induction Services - Walsall
- Derlwyn Drums - Llandysul
- Dermaco - Dunstable
- Dernaseer Engineering Ltd - Dungannon
- Dernier and Hamlyn Ltd - Croydon
- Dero Fabrication Ltd - Worcester
- Derron Engineering Ltd - Winsford
- Derry Paper and Book Conservation Ltd - Nottingham
- Derry Precision Tools - Londonderry
- Derwen Tooling Ltd - Pontypridd
- Derwent Castings Ltd - Matlock
- Derwent Design Engineering - Ripley
- Derwent Engineering - Sheffield
- Derwent Patterns and Models - Derby
- Derwent Training Consultants - Derby
- Derwentside Precision Gears Ltd - Stanley
- Derwood and Abel Ltd - Rainham
- Des Gosling Mobility Ltd - Derby
- Des Group Ltd - Brentford
- DES Ltd - High Peak
- Desa Systems Ltd - Huddersfield
- Desboro Jig - High Wycombe
- Descant Ltd - Bathgate
- Descon Ltd - Leeds
- Desem Ltd - Stoke on Trent
- Design 2 Print (Llandudno) Ltd - Llandudno
- Design A Blind - Leicester
- Design and Drawing Services - Ross on Wye
- Design and Engineering - Ulverston
- Design and Manufacture Ltd - Merthyr Tydfil
- Design Brief 7 - Milton Keynes
- Design Chain, The - Chelmsford
- Design Details and Draughting - Gateshead
- Design Engineering and Fabrications International Ltd - Lymington
- Design Engineering Services (Wolverhampton) Ltd - Wolverhampton
- Design Enterprises - Stevenston
- Design In Pine Ltd - Ipswich
- Design Initiative Ltd - Lewes
- Design Institude, The - Coventry
- Design International Ltd - Ruthin
- Design IV - Hereford
- Design Joinery - Benfleet
- Design Knowledge - Reading
- Design Paradigm Ltd - Huddersfield
- Design Rationale Ltd - Hatfield
- Design Reality Ltd - Rhyl
- Design Services (Engineering) Ltd - Nuneaton
- Design Signs - Birmingham
- Design Signs - Watford
- Design Solutions - Surbiton
- Design Synergy Ltd - Kettering
- Design Tech Ideas - Newquay
- Design Technology International Ltd - Ipswich
- Design Windows - Bristol
- Design Works - Swindon
- Design-A-Sign - Halifax
- Designation Ltd - Peterborough
- Designbrook Ltd - Wokingham
- Designer Biind Co - Southampton
- Designer Blinds - New Tredegar
- Designer Blinds and Awnings - Nantwich
- Designer Blinds and Drapes - London
- Designer Gates - Rainham
- Designer Ironsmith Of Arundel - Arundel
- Designer Sign - St Helens
- Designer Steel - Cranbrook
- Designer Woodwork Services - Sheffield
- Designer Workshop Ltd - Kidderminster
- Designplan Lighting Ltd - Sutton
- Designs and Signs - Chelmsford
- Designs For Blinds - Sheffield
- Designs In Aluminium - Peacehaven
- Designs In Iron Ltd - Grantham
- Designs In Wood - Glenrothes
- Designs In Wood - Stoke on Trent
- Designs on Engineering - Chelmsford
- DesignTech Solutions Ltd - Gloucester
- Desire2display Ltd - Stoke on Trent
- Deskjockeys - Stourbridge
- Desktop Engineering Ltd - Witney
- Desmi Ltd - Newcastle under Lyme
- Desmond Engineering - Mansfield
- Dessian Products Ltd - Belfast
- Dessian Scotland - Bellshill
- Deswood Precision Ltd - Dorking
- Detail Precission Engineering - Leicester
- Detail Sheet Metal - Dartford
- Detecto Scale - Bury St Edmunds
- Detector Technologies Ltd - Alton
- Dethleffs - Cleethorpes
- Detroit Solar - Nottingham
- Detroit Steel Products - Bedford
- Deublin Ltd - Andover
- Deutz UK Ltd - London
- Deva Forge - Chester
- Deva Tap Co - Leigh
- Devaco International Ltd - Chester
- Devanon Plastics Ltd - Ely
- Devco Engineering - Bradford
- Development and Technology Ltd - Melton Mowbray
- Develtek Ltd - Aberdeen
- Deveron Blinds - Turriff
- Deville and Lear Ltd - Ashbourne
- Devin Consulting Engineers - North Shields
- Devizes Control Systems - Devizes
- Devizes Reclamation Co Ltd - Devizes
- Devizes Steel Supplies - Melksham
- Devol Engineering Ltd - Greenock
- Devon and Somerset Engineering Co Ltd - Minehead
- Devon and Somerset Fork Lift Services - Exeter
- Devon Engineering Services - Newton Abbot
- Devon Forklift Services - Exeter
- Devon IT - Clovelly
- Devon Metalcrafts Ltd - Exmouth
- Devon Motor Caravans Ltd - Ferryhill
- Devon Pine Oak - Plymouth
- Devon Signs - Exmouth
- Devon Spirals - Paignton
- Devonport Management Ltd - Plymouth
- Devonshire Blinds Ltd - Thornton Cleveleys
- Devonshire Interiors Ltd - Stockport
- DEW Electronic Engineering Ltd - Chigwell
- Dewar Mobility - Bridlington
- Dewcroft Southern Lifts Ltd - Worthing
- Dewhurst Dent Textiles - Manchester
- Dewhurst Engineering - Blackburn
- Dewhurst plc - Hounslow
- Dewmesh - South Petherton
- Dexion Comino Ltd - Bromsgrove
- Dexter Magnetic Technologies Europe Ltd - Slough
- DF Packaging Ltd - East Kilbride
- DFD Instruments - Woking
- DFL Material Handling Ltd - Darlington
- DG Controls Ltd - Swadlincote
- DG Engineering - Eye
- DG Engineering Consultancy Ltd - Bridgwater
- DG Health and Mobility - Worcester
- DG Hedley - Rhyl
- DG Sheetmetals - Leeds
- DG Springs Ltd - Leicester
- DG Steel and Son Engineering Ltd - Bury
- DGB Hydraulic Services Ltd - Cwmbran
- DGR Designs - Huddersfield
- DGR Engineering - Wolverhampton
- DGS Abrasives Division - Portsmouth
- DGS Abrasives Ltd - Wolverhampton
- DGS Engineering - Rotherham
- DGS Property Maintenance Ltd - Liverpool
- DGT Precision Engineering - Bridport
- DH Services - Okehampton
- DH Stainless - Haslingden
- DH Townsend - Bridport
- DHD Engineering Services Ltd - Wrexham
- DHF Engineering Ltd - Melksham
- DHF Ltd - Dewsbury
- Dhi Engineering Ltd - Rayleigh
- Dhl Bathrooms Supplies Ltd - Bristol
- DHPS Ltd - Norwich
- DHR Sheet Metal Fabrication - Huddersfield
- DHS Tool Supply Co Ltd - Plymouth
- DHS Tool Supply Co Ltd - Poole