This is a complete list of all organisations which have successfully bid for OJEU notices since 16 Oct 2008.
| Organisation Name | Contracts Awarded | Company Type |
|---|
| A & B Buchan | 2 | |
| A & J Guthrie & Son | 4 | |
| A & J Keith | 1 | |
| A A Woods | 1 | |
| A Ainge & Sons | 1 | |
| A B Construction SW | 1 | |
| A Brown | 1 | |
| A Bruce Building | 4 | |
| A Bruce Hastie Electrical Contractor | 1 | |
| A C Roy | 1 | |
| A Campbell Electrical Services Ltd | 1 | |
| A Connolly | 45 | Contractor |
| A Copeland | 2 | |
| A Copeland Group | 1 | |
| A Dever Construction | 1 | Contractor |
| A E & A T Lewis | 3 | |
| A E Burgess & Sons | 2 | |
| A E Robb & Associates | 1 | |
| A E Yates | 1 | |
| A F Tough | 2 | |
| A Forsyth & Son | 1 | |
| A Grant Joinery | 3 | |
| A Hammond & Sons | 3 | |
| A Hand Services | 1 | |
| A J PIPELINE (ANGLESEY) | 3 | |
| A Lamb Associates | 1 | |
| A Longworth & Sons | 1 | |
| A MacDonald Joinery | 1 | |
| A Machola | 1 | |
| A McAughtrie & Son | 5 | |
| A oliver & sons joiners | 2 | |
| A P G Architects | 1 | |
| A Plant Ltd | 1 | |
| A Practice For Everyday Life | 1 | |
| A Purkiss | 1 | |
| A Robertson Electrical | 5 | |
| A Ross Contractors | 5 | |
| A Sellars Decorating Contractors | 1 | Specialist trade |
| A Stevely Electrical Contractors | 1 | |
| A Studio | 2 | Architect |
| A W Owen Joinery & Building Contractor | 2 | |
| A Wandless Sign Services | 1 | |
| A Williams Contract Services | 2 | |
| A Williams Contract Services LTd | 2 | |
| A Williamson Haulage | 2 | |
| A&B Buchan | 6 | Contractor |
| A&B Buchan | 1 | |
| A&B Engineering | 1 | |
| A&D House Furnishers | 5 | |
| A&D Joinery | 1 | |
| A&F Pilbeam | 2 | |
| A&H Construction | 2 | Contractor |
| A&J Keith | 4 | |
| A&V Squires Plant Co | 3 | Plant hire |
| A&W Sinclair | 8 | |
| A-Plant | 4 | Plant hire |
| A1 Mini Mix Concrete | 1 | |
| A1Maintenance | 4 | |
| A2Dominion | 4 | Housing association |
| AA Molyneux | 1 | |
| AA Projects | 64 | Consultant |
| AA Woods | 4 | |
| AA Young | 5 | |
| Aardee Security Shutters | 1 | |
| Aaron Evans Architects | 1 | Architect |
| Aaron Services | 6 | |
| AB (Electrical) Engineering | 1 | |
| AB 2000 | 29 | |
| AB Building & Electrical | 1 | |
| AB Mitchell Developments | 9 | Specialist trade |
| AB2000 | 2 | |
| Abacus Build | 1 | |
| Abacus Design Associates | 1 | |
| Abacus Drainage Services (South West) | 1 | |
| Abacus Playgrounds | 4 | Specialist trade |
| Abacus Project Services | 1 | |
| Abacus Residential Services | 2 | |
| ABB United Kingdom | 1 | |
| Abbey Architectural | 1 | |
| Abbott Risk Consulting | 4 | Consultant |
| ABC Building & Roofing Services | 1 | |
| Aber Heating Engineers | 9 | |
| Aberdeen Marine | 5 | |
| Aberdeen Marine Services | 1 | |
| Aberdeen Roads | 1 | |
| Abermon Electrical Contractors | 3 | |
| Aberrant Architecture | 1 | Architect |
| Able Bathing & Building | 18 | Contractor |
| Able Care | 5 | |
| Able Construction | 4 | Contractor |
| Able Construction (Northern) | 1 | |
| Able4Enterprise | 2 | |
| Abm Roofing Contractors | 1 | |
| ABN Services | 3 | |
| Abode Partnership Llp | 1 | |
| ABP London (Investment) | 1 | |
| ABP Marine Environmental Research | 1 | Consultant |
| Abraham Shaw | 1 | |
| ABS Consulting | 1 | |
| Absolute Electrical & Mechanical Solutions | 2 | |
| Absolute North West Ltd | 6 | |
| Absolute Solar & Wind | 3 | |
| ABW Architects | 1 | Architect |
| AC Electrics | 1 | |
| AC Gold Services | 1 | |
| AC Lloyd | 1 | Contractor |
| AC Whyte & Co | 21 | |
| ACA + 1 | 1 | |
| ACA + I | 1 | |
| ACA+I | 1 | |
| Academy Consulting Solutions | 3 | |
| Acanthus Clews Architects | 5 | Architect |
| Acanthus Holden Architects | 1 | Architect |
| Acanthus Lawrence & Wrightson | 2 | |
| Acanthus LW Architects | 6 | Architect |
| Acanthus Wsm | 1 | |
| Acanthus WSM Architects | 11 | Architect |
| Access Hire Nationwide Ltd | 1 | |
| Access Independent | 1 | |
| Accessible Building Solutions | 2 | |
| Acclaim Contracts | 3 | |
| Ace Portable Accommodation | 1 | |
| ACHNASHEAN FENCING T/A North Wales Fencing Co | 1 | |
| ACI | 1 | |
| ACI Integrated Solutions | 5 | |
| Acies Group | 2 | Consultant |
| Acivico | 1 | |
| Acland Plant Hire | 1 | |
| ACLandscapes & Tree Works UK | 1 | |
| ACME | 1 | |
| AConnolly | 2 | |
| Acorn Aluminium | 1 | |
| Acorn Analytical Services | 4 | |
| Acorn Analytical Services (UK) | 1 | |
| Acorn Chartered Surveyors | 1 | Consultant |
| Acorn Lighting Services | 2 | Specialist trade |
| Acousti-Eco-Solve t/a GMC Projects | 2 | |
| Acp: North Hub Limited | 1 | |
| Acre Industrial & Cleaning Services | 5 | |
| Acre Lifts Ltd | 1 | |
| Acrol Air Conditioning Company | 1 | |
| ACS Partnership Chartered Surveyors & Building Engineers | 1 | Consultant |
| ACS Physical Risk Control | 1 | |
| ACS Stainless Steel Fixings | 1 | |
| Actavo Building Solutions | 3 | |
| Actica Consulting Ltd | 3 | |
| Action Hire | 3 | |
| Action Patch Planning | 2 | |
| Active Air Conditioning | 5 | Specialist trade |
| Active Energy Funding | 10 | |
| Active Energy Solutions | 5 | |
| Active Maintenance Solutions | 7 | |
| Acton Gardens LLP | 1 | Developer |
| Acts Partnership Ltd | 1 | |
| Actua Chartered Surveyors | 2 | |
| Acuity Management Solutions | 1 | |
| Acumen Solutions | 3 | |
| AD | 1 | |
| AD Architects | 1 | Architect |
| AD Construction Group | 15 | |
| ADA Construction Consultants | 2 | |
| Adam Fox Plant Hire & Contractors | 2 | Plant hire |
| Adam Khan Architects | 5 | Architect |
| Adam Mactavish, Cyrill Sweet | 1 | |
| Adams & Sutherland | 4 | |
| Adams Consulting Group | 3 | |
| Adams Hendry | 1 | |
| Adams Johns Kennar | 1 | |
| Adams Kara Taylor | 1 | Engineer |
| Adamsons Laboratory Services Limited | 1 | |
| Adaptus Consulting LLP | 1 | |
| ADAS UK | 1 | |
| ADC | 76 | |
| Adc- | 1 | |
| Adcock Refrigeration & Air Conditioning | 3 | |
| Additude Creative Ltd | 1 | |
| Adeiladol Cyf | 4 | |
| Adept Consulting Engineers | 2 | |
| ADG Consultancy | 2 | |
| ADG Consultancy Limited | 3 | |
| ADH Construction | 3 | |
| Adlards Roofing | 2 | |
| Adman Civil Projects | 7 | |
| Adman Civils Projects | 1 | |
| Admec Environmental Services Ltd | 1 | |
| Admiral Building & Construction | 6 | |
| Admiral Civil Engineering | 1 | |
| Admiral Scaffolding Group | 1 | Specialist trade |
| ADP | 2 | |
| ADP Architects | 6 | |
| Adp Architects & Arch-aid Design Ltd | 1 | Architect |
| ADP Architecture | 7 | |
| Adrem Contracts | 1 | |
| Adrian James Acoustics | 1 | Consultant |
| Adrian Morrison & Sons | 1 | |
| Adrian Phillips | 1 | |
| ADS AIR CON | 1 | |
| ADT Fire & Security | 7 | Specialist trade |
| ADT Workplace | 5 | |
| Advalus | 4 | |
| Advance Carpet Tiles | 1 | |
| Advance Constructin Scotland | 1 | |
| Advance Construction Scotland | 9 | Contractor |
| Advance Safety | 1 | |
| Advanced Energy Management Services | 1 | |
| Advanced Maintenance Uk Ltd | 1 | |
| Advanced Roller Doors | 1 | Specialist trade |
| Advanced Roller Doors (ek) Limited | 1 | |
| Advanced Satellite Solutions | 1 | Specialist trade |
| Advant� | 1 | |
| Advent Project Management Ltd | 1 | |
| AE & AT Lewis | 1 | |
| AE Duffield & Sons | 1 | |
| AE Faulks | 1 | |
| AE Insulation | 1 | |
| AE Thornton Firkin And Partners | 1 | |
| AE Yates | 19 | Contractor |
| Aecom | 612 | Consultant |
| AECOM (Davis Langdon) | 1 | |
| AECOM Infrastructure & Environment UK | 4 | |
| AECOM Infrastructure Environment UK | 1 | |
| AED Practice, The | 4 | |
| AEG | 1 | |
| Aegis Services | 5 | |
| Aer Cymru cyf | 5 | |
| Aerovision (UK) | 2 | |
| Aertec Ingenieria y Desarrollos SLU | 1 | |
| AEW Architects | 5 | Architect |
| AEW Architects & Designers | 1 | |
| AF Industry AB | 1 | |
| Afan Electrical Ltd | 15 | |
| Afan Landscapes | 2 | |
| Affinity Sutton | 3 | Housing association |
| AFL Architects | 11 | Architect |
| AFLSP | 8 | |
| AFM Gas Services | 2 | |
| AG Crawford & Company | 2 | Consultant |
| AG Crawford / Diamond | 2 | |
| AG Maclean | 5 | |
| Aggregate Industries | 56 | |
| Aggregate Industries UK | 23 | |
| Aggregate Industries UK Lim | 1 | |
| Aggregate Industries Uk Ltd | 1 | |
| Agility Eco Services | 2 | |
| AGR | 7 | |
| AGR Building & Fencing Contractors | 1 | Specialist trade |
| Agripower | 1 | |
| AH Eastwood | 1 | |
| AH Jones | 2 | |
| AH Macdonald | 3 | Specialist trade |
| AH Plant Hire | 1 | |
| AH Property Services | 1 | |
| AH Retford | 1 | |
| AH Willis & Son | 1 | |
| AH Willis & Sons | 1 | |
| Ahe Refrigeration & Electrical Ltd | 5 | |
| Ahern Ecology Ltd | 1 | |
| Ahr | 2 | |
| AHR (Aedas) | 58 | Consultant |
| AHR Architects | 24 | Architect |
| AHR Building Consultancy | 13 | |
| AI Mackenzie | 5 | |
| Aidan Walsh Consultancy | 1 | Consultant |
| Ailsa Building Contractors | 1 | |
| Aimrange NE | 2 | |
| Ainsley Gommon Architects | 24 | Architect |
| Ainsty Timber Marketing | 2 | |
| Ainsty Timber Marketing (ATM) | 1 | |
| Ainsty Timber Marketing (Trading as ATM) | 1 | |
| Air Creative | 1 | |
| Air Data Systems | 1 | |
| Airborne Environmental Consultants | 9 | Consultant |
| Aird Geomatics | 1 | |
| Airey Miller | 10 | |
| Airey Miller Partnership LLP | 36 | |
| Airfire Control | 1 | |
| Airmaster Air Conditioning | 1 | |
| Airsafe UK | 2 | |
| Airsource1 (highland) | 1 | |
| AIS Insulation Supplies | 1 | |
| Aitken Turnbull Architects | 3 | |
| Aitken Turnbull Architecture | 2 | Architect |
| AJ & AD Macleod | 5 | |
| AJ Balfour Associates | 1 | |
| AJ Beaman Construction | 1 | |
| AJ Building | 2 | |
| AJ Crews & Co | 1 | |
| AJ Dallas | 5 | Specialist trade |
| AJ Engineering & Construction Services | 1 | |
| AJ Morrison | 5 | |
| AJ Quinn Building Contractors | 2 | |
| AJ Restoration Co | 1 | |
| AJM Fixings & Power Tools | 2 | |
| AJP Partnership | 3 | Engineer |
| AJS | 1 | |
| AK Design Partnership LLP | 1 | |
| AK Glass & Glazing | 1 | |
| Akela Construction Limited | 3 | |
| AKP Scotland | 1 | |
| AKS Building Contractors | 8 | Contractor |
| AKS Ward | 7 | Consultant |
| AKT II | 2 | |
| AKT JV | 1 | |
| Aktsiaselts Teede Tehnokeskus | 1 | |
| AKW Medi-Care | 2 | |
| AKW Medicare Products | 2 | |
| AkzoNobel | 1 | |
| Al-Vac UK | 1 | |
| Alan Baxter | 2 | |
| Alan Baxter & Associates | 9 | Consultant |
| Alan C Cowan | 1 | |
| Alan Camp Architects | 1 | |
| Alan Camp Architects LLP | 21 | Architect |
| Alan Conisbee & Associates | 1 | |
| Alan Gow Groundworks | 5 | Specialist trade |
| Alan Irving Ltd | 1 | |
| Alan James & Sons | 2 | |
| Alan Johnson Partnership | 1 | |
| Alan Johnson Partnership LLP | 1 | |
| Alan Johnston Partnership | 5 | |
| Alan Johnston Partnership LLP | 1 | |
| Alan Nicholas Associates | 1 | |
| Alan R Cross & Son | 3 | |
| Alan Wood and Partners | 2 | |
| Alandale Logistics | 1 | |
| Alarm Company, The | 1 | |
| Alarming UK | 1 | |
| Alastair Coey Architects | 2 | Architect |
| Alba Environmental Services | 4 | |
| Alba Facilities Services | 1 | |
| Albar Landscapes | 2 | |
| Albert & Flaherty | 1 | |
| Albert Embankment LLP | 1 | |
| Albert Fry Associates | 2 | |
| Albert Holliday & Son Ltd | 4 | |
| Albion Environmental Limited | 1 | |
| ALC Scaffolding | 1 | |
| Alcontrol On-Site Services | 2 | |
| Ald Plant Hire | 1 | |
| Alder King Property Consultants | 2 | |
| Aldiso Highlands Landscaping & paving | 1 | |
| Aldreds Property Consultants | 1 | Consultant |
| Alec French Partnership | 1 | |
| Alec French Partnership Limited | 1 | |
| Aleon | 1 | |
| Alex M Sutherland | 1 | |
| Alex Murray (Construction) | 35 | Contractor |
| Alex Scullion Electrical Contractors | 1 | Specialist trade |
| Alex Smiles Ltd | 1 | |
| Alexander Associates (Heritage) T/A JLA Consulting | 1 | |
| Alexander Beaton | 5 | |
| Alexander Fabrications | 4 | |
| Alfred Bagnall & Sons | 11 | Contractor |
| Alfred Bagnall & Sons (North East) | 1 | |
| Alfred Bagnall & Sons (North) | 1 | |
| Alfred Flett | 1 | |
| Alfred Hall Monaghan Morris | 1 | |
| Alger Electrics & Alarms | 1 | Specialist trade |
| Ali Systems | 1 | |
| Align Property Partners | 17 | |
| Alimatic Architectural Aluminium Systems Ltd | 1 | |
| Alison Brooks Architects | 1 | Architect |
| Alison Millward Associates | 1 | |
| Alison Porter | 1 | |
| Alistair Clements | 1 | |
| Alistair Coey Architects Limited | 1 | |
| Alistair Matheson Plumbing | 1 | |
| Alistair Young And Son | 5 | |
| Alix Slater Consultancy & Training | 4 | Consultant |
| All Cleaned Up | 2 | Specialist trade |
| All Floors (Services) | 4 | |
| All Property Maintenance | 5 | |
| Allan & Hanel | 2 | |
| Allan & Hanel | 2 | |
| Allan Baxter Partnership Llp | 1 | |
| Allan Ingram Industrial Cleaning Services | 5 | Specialist trade |
| Allan Joyce Architects | 2 | Architect |
| Allan Munro Construction Ltd | 1 | |
| Allan Murray Architects | 2 | Architect |
| Allcoopers | 2 | |
| Allelys Heavy Haulage | 1 | |
| Allen Build | 1 | |
| Allen Construction Consultancy | 2 | Consultant |
| Allen Consultancy | 1 | |
| Allen Dadswell Construction Consultants | 2 | |
| Allen Group | 1 | |
| Allen Holmes Limited | 1 | |
| Allen Pyke Associates | 2 | |
| Allen Scott | 1 | |
| Allen Scott Landscape Architecture Limited | 1 | Architect |
| Allenbuild | 18 | Contractor |
| Allford Hall Monaghan Morris | 6 | Architect |
| Allgas Southwest | 2 | |
| Alliance Cdm | 1 | |
| Alliance Community Partnerships | 1 | |
| Alliance Construction Solutions | 1 | |
| Alliance Contracting | 1 | |
| Alliance Contracting Solutions | 1 | |
| Alliance Environment & Planning | 2 | Consultant |
| Alliance Group Solutions | 2 | |
| Alliance Timber Preservation | 7 | Specialist trade |
| Allied Construction Consortium | 1 | |
| Allied Construction Ltd | 3 | |
| Allied Construction Services (Scotland) | 13 | Contractor |
| Allied Drilling & Colas | 1 | |
| Allied Mechanical Services | 1 | |
| Allied Roofing | 7 | Specialist trade |
| Allied Roofing & Construction | 4 | |
| Allied Souter And Jaffery | 1 | |
| Allied Surveyors Scotland | 1 | |
| Allies & Morrison | 1 | |
| Allies & Morrison LLP | 14 | |
| Allium Environmental | 2 | |
| Allman Woodcock | 2 | |
| Allsides | 1 | |
| Allsop LLP | 1 | Consultant |
| Allsports Construction & Maintenance Ltd | 2 | |
| Allwright Locksmiths | 1 | |
| Almacit Engineering | 3 | |
| Almerico | 1 | |
| Alpha Construction | 1 | |
| Alpha Real Estate | 1 | |
| Alphagen Projects | 1 | |
| Alpine Resourcing | 6 | |
| Alresford Marquee Hire | 1 | |
| ALS Landscape Architecture | 1 | Architect |
| Alstom Transport UK | 1 | |
| Altair Consultancy & Advisory Services | 2 | |
| Alternative Heat Ltd | 2 | |
| Altran | 1 | |
| Alumasc Exterior Building Products | 1 | |
| Alun Griffiths | 82 | |
| Alun Griffiths (Construction) | 2 | |
| Alun Griffiths (Contractors) | 40 | |
| Alwyn Jones Architects | 1 | Architect |
| AM Dunbar | 4 | Contractor |
| AM Dunbar Electrical Contractor | 1 | |
| AM Group | 3 | |
| AM Howie | 1 | |
| AMA Alexi Marmot Associates | 2 | Architect |
| AMA Consulting Engineers | 1 | |
| AMA Nuclear | 1 | |
| Amagamated Construction (AMCO) | 1 | |
| Amalgamated Construction | 5 | |
| Amalgamated Facilities Management | 2 | |
| Amalgamated Limited | 1 | |
| Amanda Carson | 1 | |
| Amanda Reynolds Urbanism | 3 | Consultant |
| Amber Construction | 2 | |
| Amber Construction Services | 20 | |
| Amber Construction Services Essex | 1 | |
| Amber Infrastructure | 2 | |
| Amber Programmable Design | 1 | |
| Amber roofing | 1 | |
| Amber Utilities | 1 | |
| Amberon | 3 | |
| AMC Electrical Services | 1 | |
| AMCL | 1 | Consultant |
| AMCM Group | 2 | |
| AMCO | 5 | Contractor |
| AMD Contract Services | 1 | |
| Amd Contract Services Ltd | 5 | |
| AMEC | 3 | |
| Amec Foster Wheeler | 38 | Consultant |
| AMEC Foster Wheeler Environment & Infrastructure | 4 | |
| Amec Foster Wheeler Environment & infrastructure UK | 1 | |
| Amec Foster Wheeler Nuclear UK | 2 | |
| Amelio Consulting Limited | 1 | |
| Amelio Group | 1 | |
| Ameo Professional Services | 3 | |
| Ameresco Ltd | 1 | |
| American Bridge International | 1 | |
| Amey | 32 | Consultant |
| Amey Community Ltd | 1 | |
| Amey LG | 8 | Contractor |
| Amey OW | 7 | |
| Amey OWR | 1 | |
| Amey Rail | 2 | |
| Amey Utility Services | 4 | |
| Amiante STR | 1 | |
| Amiri Construction | 2 | Contractor |
| AMJ Construction | 1 | |
| Aml (highland) Ltd | 1 | |
| AMR Electrical Services | 6 | |
| Amrin Resources | 1 | |
| AMS | 1 | |
| AMS Asbestos Management Services | 9 | Consultant |
| AMT Projects Construction | 7 | Contractor |
| Amwell Construction | 1 | Contractor |
| Anaco Air Conditioning | 2 | |
| Anarchitecture Ltd T/a Conception | 1 | |
| Anchorpoint | 1 | |
| Ancon Building Products | 1 | |
| Anderson | 1 | |
| Anderson & Thomas Roofing | 2 | |
| Anderson Bayne Architects | 2 | |
| Anderson Bell + Christie | 27 | Architect |
| Anderson Bell Christie | 5 | |
| Anderson Building & Construction Ltd | 4 | |
| Anderson Grp Ltd | 1 | |
| Anderson Williamson Limited | 1 | |
| Anderson&Wilson Engineers | 2 | |
| Anderton Gables | 11 | |
| Anderton Gables Chartered Building Surveyors | 4 | |
| Andrew Bardley | 1 | |
| Andrew Beard | 1 | Architect |
| Andrew Bradley | 4 | |
| Andrew Bradley Stonemason | 1 | |
| Andrew G Crawford & Company | 1 | |
| Andrew Grime | 1 | |
| Andrew H Wilson Electrical | 1 | Specialist trade |
| Andrew Hardy Construction | 1 | |
| Andrew Lawford & Sons | 1 | |
| Andrew Lister Electrical Contractors | 1 | |
| Andrew M Davies Building Contractors | 1 | |
| Andrew Munro Plumbing & Heating Services | 5 | Specialist trade |
| Andrew Murray Electrician | 2 | |
| Andrew Murray Electrician Ltd | 2 | |
| Andrew P Orr | 1 | Specialist trade |
| Andrew P Orr (decorators) Limited | 1 | |
| Andrew Phillips Limited | 1 | |
| Andrew Reid & Partners Llp | 1 | |
| Andrew Rumfitt, Innovacion | 1 | |
| Andrew Scott | 19 | |
| Andrew Shepherd Construction | 4 | |
| Andrew Walker | 1 | |
| andrew williamson/ builder | 2 | |
| Andrew Wood Painter & Decorator | 1 | |
| Andy Acton Ecological Consultant & Lichenologist | 1 | |
| Andy Foster Architects | 1 | Architect |
| Andy Gibson Builders | 8 | |
| Andy Godfrey Associates | 1 | |
| Andy Murray Decorators | 2 | |
| Andy Rice Design | 1 | |
| Angela Murphy (The Image Business) | 2 | |
| Angell Surveys | 1 | |
| ANGLESEY HEATING & PLUMBING SERVICES | 3 | |
| Anglia Air Conditioning | 1 | |
| Anglia Heating | 1 | |
| Anglia Stairlifts | 1 | |
| Anglian Building Products | 5 | |
| Anglian Building Products a division of Anglian Windows | 7 | |
| Anglian Demolition & Asbestos | 2 | |
| Anglian Environmental Solutions | 2 | |
| Anglian Group Norfolk | 1 | |
| Anglian Insulations Frost | 1 | |
| Anglian Water | 1 | |
| Anglian Windows | 9 | Supplier |
| Anglian Windows t/a Anglian Building Products | 1 | |
| Angus Design Associates | 1 | |
| Angus Macdonald(borve)ltd | 1 | |
| Angus Macleod Electrical Cotractor | 5 | Specialist trade |
| Angus Ross Joiner & Contractor | 5 | Specialist trade |
| Ankur Architects | 2 | Architect |
| Anna French Associates | 1 | |
| Anne Minors Performance Consultants | 1 | |
| Anne Thorne Architects LLP | 4 | Architect |
| Ansell And Bailey Llp | 1 | |
| Anthesis Energy UK | 3 | |
| Anthony A Davies | 2 | |
| Anthony Dever Construction | 20 | Contractor |
| Anthony Hogan | 1 | |
| Anthony Keith Architects Limited | 2 | |
| Anthony Watson Chartered Architect | 3 | Architect |
| Anthony Wollen | 1 | |
| Anwyl Construction | 6 | Contractor |
| Anwyl Construction Co | 2 | |
| AOC Architecture | 3 | Architect |
| AOH Ltd | 1 | |
| Aone+ | 2 | |
| Aone+ Integrated Highways Services | 1 | |
| AP Carpentry Contractors | 1 | |
| AP Faulkner | 2 | Specialist trade |
| AP Pavers | 4 | |
| Apem | 2 | |
| Apex Engineering Services | 1 | |
| Apex Home & Energy Surveyors | 1 | |
| Apex Lifts & Escalator Engineers Limited | 1 | |
| APF Heating & Mechanical Service | 2 | |
| APF Heating & Mechanical Services | 4 | Specialist trade |
| APG Architecture | 1 | |
| APG Domestic Services | 6 | |
| APM Contracts | 25 | |
| Apm Contracts Ltd | 1 | |
| Apollo (Keepmoat) | 52 | Contractor |
| Apollo Group | 6 | Contractor |
| Appeel | 2 | |
| Applebridge Construction | 10 | Contractor |
| Appleyard & Trew LLP | 12 | Consultant |
| Appleyards | 13 | Consultant |
| Applied Ecological Services | 3 | |
| Applied Genomics | 1 | |
| Applied_ | 1 | |
| Apply Scaffolding Services Ltd | 1 | |
| Apr Services Limited | 1 | |
| Aqua Interiors | 27 | Specialist trade |
| Aqua Leisure | 6 | |
| Aqua Management | 2 | |
| Aqua Mechanical Services | 1 | |
| Aquajet | 2 | |
| Aquascience | 2 | |
| Aquasolutionz | 4 | |
| Aqueous 1st Kwick Flow | 1 | |
| AR Cook | 1 | |
| AR Musson Agricultural Contractor | 1 | Specialist trade |
| Aran Services | 26 | |
| Aran Services Suffolk | 1 | |
| Aran Services Units 1 -6, The Old Station Higham Suffolk | 1 | |
| Arb Mechanical Engineering Ltd | 1 | |
| Arbour Tree Surgeons & Landscapers | 1 | Specialist trade |
| Arbourtree Surgeons & Landscapers Ltd | 4 | |
| Arbuckle McLean | 2 | |
| Arc Group London | 4 | |
| Arca Design LLP | 1 | |
| Arcadis | 114 | Consultant |
| Arcadis (UK) | 7 | |
| Arcadis Consulting | 1 | |
| Arcadis Consulting (UK) | 1 | |
| Arcadis LLP | 5 | |
| Arch Communications (UK) | 1 | |
| Arch Henderson Llp | 4 | |
| Arch Henderson, Gauldie Wright And Rda | 1 | |
| Archadia | 3 | Architect |
| Archer Hoblin | 2 | Contractor |
| Archial | 11 | Architect |
| Archie Nicolson | 5 | |
| Architecton | 1 | Architect |
| Architects Design Group | 1 | |
| Architects Design Group, Lacie Hickey & Caley, Mitchell Architects, Trewin Design | 1 | |
| Architects Design Partnership | 41 | Architect |
| Architects Design Partnership LLP | 1 | |
| Architects Plus | 6 | Architect |
| Architects Plus (UK) | 1 | |
| Architectural Decorators | 2 | Specialist trade |
| Architectural Decorators Limited | 1 | |
| Architecture 00 | 4 | Architect |
| Architecture PLB | 15 | Architect |
| Architexture | 1 | |
| Architon Llp | 4 | |
| Architype | 26 | Architect |
| Arco | 1 | |
| Arcus | 2 | |
| Arcus Consultancy Services | 1 | |
| Arcus Consulting | 6 | |
| Arcus Consulting LLP | 98 | Consultant |
| Arcus Solutions | 4 | |
| Arden Windows | 7 | |
| Ardent Hire Solutions | 1 | |
| Ardmac Performance Contracting | 1 | |
| Ardmore Advertising And Marketing Limited | 2 | |
| Ardmore Construction | 11 | |
| Ardmore First Base Partnership | 3 | Developer |
| Area Urban Design & Architecture Llp | 1 | Architect |
| Arep Ville | 1 | |
| Areva Nc | 1 | |
| Areva Risk Management Consulting Limited | 2 | |
| ARF | 4 | |
| Arfon williams | 1 | |
| Argent | 1 | |
| Argent Consortium | 1 | Developer |
| Argon Engineering | 1 | |
| ARJ Construction | 4 | |
| Ark Build | 4 | |
| Ark Build Plc | 1 | |
| Ark Consultancy | 4 | |
| Ark Design And Architecture Ltd | 1 | Architect |
| Arkwood (t/a Jon Sheaff & Associates) | 1 | |
| Arlington Builders | 92 | |
| Arlington Builders LTD | 4 | |
| ARM Architects LLP | 2 | |
| Armadale Commercials | 2 | |
| Armfield Construction | 1 | Contractor |
| Armitage Associates | 1 | |
| Armitage Construction | 1 | |
| Armitage Groundworks | 2 | Specialist trade |
| Armitage Maintenance | 1 | |
| Armour & Partners | 1 | |
| Armour Construction Consultants | 12 | Consultant |
| Armour Contracts Limited | 1 | |
| Armstrong Burton Structures | 1 | |
| Armstrong York Asbestos Environmental | 9 | Specialist trade |
| Arndale | 3 | |
| Arnold Clark Finance | 1 | |
| Arnold Electrical | 2 | |
| Arnold Faulkner | 5 | |
| Arnold Laver | 1 | |
| Arnold Laver & Co | 1 | Supplier |
| Arnold Laver & Company | 1 | |
| Arnold Laver 7 Co | 1 | |
| Arnold Plant Hire | 1 | |
| Arnold Walker Contracts | 1 | |
| ARP Geotechnical | 8 | |
| Arpl Architects | 4 | Architect |
| Arriving | 2 | |
| Arrol And Snell Ltd | 1 | |
| Arrow Plant & Tool Hire | 1 | |
| Art Contracts | 1 | |
| Art Contracts Limited | 2 | |
| Artelia | 4 | |
| Artelia Projects UK | 3 | |
| Artelia Projects Uk Limited | 2 | |
| Artelia UK | 15 | |
| Arthur H Macdonald | 2 | |
| Arthur M Griffiths & Son | 4 | |
| Arthur McKay & Co | 2 | |
| Arthur Mckay & Co | 9 | Contractor |
| Arthur Mckay Building Services | 1 | |
| Artic Building Services | 1 | |
| Artis Consulting | 1 | |
| Artlab Architects | 1 | Architect |
| Arttus Period Interiors | 2 | |
| Arup | 171 | Consultant |
| ARV (UK) | 2 | |
| Arvato Government Services Ltd | 1 | |
| Arvill Plant & Tool Hire | 2 | Plant hire |
| AS Coyle | 1 | |
| AS Homes | 2 | |
| AS Homes (Scotland) | 7 | |
| AS Scaffolding | 2 | Specialist trade |
| AS Wellington | 2 | |
| Asbestos Consultants To The Environment Limited | 1 | |
| Asbestos Contracting | 1 | |
| Asbestos Control & Treatment | 1 | |
| Asbestos Specialists (UK) | 1 | |
| Asbestos Specialists (uk) Ltd | 1 | |
| Asbestos Specialists Uk Ltd | 1 | |
| Asbestos Surveyors UK | 1 | Specialist trade |
| Ash Sakula Architects | 2 | Architect |
| Ashby & Croft | 1 | |
| Ashcourts Contract | 2 | |
| Ashcroft Services | 1 | |
| Ashdale Engineering | 1 | Consultant |
| Ashe Construction | 13 | Contractor |
| Ashe Construction Ltd | 4 | |
| Ashfern Surfacing | 4 | |
| Ashfield Group Yorkshire | 2 | |
| Ashfield Properties | 1 | |
| Ashfield Solutions | 1 | |
| Ashlar Construction (NW) | 2 | |
| Ashleigh (Scotland) | 18 | Contractor |
| Ashleigh (scotland) Limited | 3 | |
| Ashleigh Building | 12 | Contractor |
| Ashley House Plc | 2 | |
| Ashstead Plant Hire | 1 | Plant hire |
| Ashstead Plant Hire Co | 2 | |
| Ashtead Plant Hire | 31 | Plant hire |
| Ashtead Plant Hire Co | 20 | |
| Ashtead Plant Hire Co Ltd | 1 | |
| Ashtead Plant Hire Company | 1 | |
| Ashton Building Services | 7 | |
| Ashton Glass | 26 | |
| Ashwood Scotland | 1 | |
| ASI Environmental | 1 | |
| ASJ Facilities Building Management | 1 | |
| Askam Construction Limited | 1 | |
| ASKAMS Compliance Services | 3 | |
| Askew Cavanna Consortium | 1 | |
| Aspect | 2 | |
| Aspect Building Solutions | 5 | |
| Aspect Construction Contracts | 8 | |
| Aspect Contracts | 10 | |
| Aspect Group Services | 11 | |
| Aspect4 Ltd | 1 | |
| Asper Investment Management | 1 | |
| Asphaltic Limited | 1 | |
| Aspin Consulting | 2 | |
| Aspin Group | 1 | |
| Aspinall Enterprises | 1 | |
| Aspinall Verdi Limited | 1 | |
| Aspiration Energy | 7 | |
| Aspiration Energy Suffolk | 1 | |
| Aspire Community Works | 1 | |
| Aspire Design Limited | 1 | |
| Aspire Housing | 3 | |
| Assael | 1 | |
| Assael Architecture | 3 | |
| Assemble Studio CIC | 2 | |
| Asset & Infrastructure Management Solutions Ltd | 1 | |
| Assist Architects | 4 | Architect |
| Assist Design | 14 | |
| Assist Facilities Management | 8 | |
| Associated Architects LLP | 19 | Architect |
| Association for Public Service Excellence (APSE) | 1 | |
| Assured Partnership | 1 | |
| Assurity Consulting | 1 | |
| Assystem UK | 4 | |
| Astam GBC Consultancy | 1 | |
| Aster Group | 1 | |
| Aster Property | 1 | |
| Aster Property (aster Group) | 3 | |
| Astra Construction | 1 | |
| Astral Control Services | 1 | |
| Astranet Systems | 1 | |
| Astrium | 1 | |
| Astryan | 2 | |
| ASW Property Service | 2 | |
| ASW Property Services | 1 | |
| AT Plumbing Services | 1 | |
| Atech Contractors | 2 | |
| Atelier Ten | 3 | |
| Atelier Ten (Scotland) | 5 | |
| ATG | 1 | |
| Atherden Fuller Leng | 4 | |
| Ati Incinerateurs Muller | 1 | |
| ATK Partnership | 1 | |
| Atkins | 267 | Consultant |
| Atkins Beta | 1 | |
| Atkins Consultants | 24 | Consultant |
| Atkins Group | 1 | |
| Atkins Ltd | 1 | |
| Atkins Walters & Webster | 2 | |
| Atkinson Building Contractors | 2 | Contractor |
| Atkinson Peck Ltd | 1 | |
| Atlantic Contracts | 1 | |
| Atlas Maintenance (Scotland) | 6 | |
| Atlas Refurbishment Northern Limited | 2 | |
| Atmos Consulting Ltd | 2 | |
| Attain Health Management Services | 1 | |
| Auburn Ainsley | 2 | |
| Augur Bulcher | 2 | |
| Aumas | 2 | |
| Aura | 1 | |
| Aura Newcastle | 1 | |
| Aura Newcastle Limited | 1 | |
| Aura Newcastle, | 1 | |
| Austin Company Of Uk Ltd | 1 | |
| Austin Watson | 1 | |
| Austin-Smith Lord LLP | 1 | |
| Austin-Smith: Lord LLP | 4 | |
| Austin-Smith:Lord | 39 | Architect |
| Austin-Smith:Lord LLP | 4 | |
| Autor Architecture | 1 | Architect |
| Autumn UK | 1 | |
| AV Plant | 1 | |
| AV Squires | 1 | |
| AVA Security & Communications | 1 | Specialist trade |
| Avant Homes | 2 | |
| Avantgarde Gesellschaft fur Kommunikation mit beschrӓnkter Haftung | 1 | |
| Avanti Architects | 8 | Architect |
| Avebury Projects | 4 | Consultant |
| Avondale Construction | 1 | |
| Avonline Plc | 1 | |
| Avonside Group Services | 3 | |
| Avonside Roofing | 23 | |
| AW Byrne Contractors | 1 | |
| AW Laing | 5 | |
| AW Property Development (NE) | 1 | |
| AW Sinclair | 4 | |
| AWA Building Services Consultants | 1 | |
| AWW | 1 | |
| AWW Architects | 3 | |
| Axiom Building Services | 3 | |
| Axis Design Architects | 2 | Architect |
| Axis Elevators | 1 | Specialist trade |
| Axis Europe | 10 | |
| Axis Europe plc | 7 | |
| Axolve Limited | 3 | |
| Ayer Associates | 1 | |
| Ayre Chamberlain Gaunt | 3 | |
| AYRSHIRE ALUMINIUM | 1 | |
| Az Urban Studio | 1 | |
| Azurite Coaching | 1 | |
