| Abbot Electrical Services Limited | Torquay | 2016 |
| Abbot Fire Group Limited | London | 2002 |
| Abbot Print Ltd | Luton | 1980 |
| Abbot Print Tenterden Limited | Bexhill On Sea | 2010 |
| Abbot Services Ltd | Rugeley | 2003 |
| Abbot Technical Services Limited | Aylesbury | 1998 |
| Abbot Thermographic Printing Limited | Rye | 2003 |
| Abbots Leigh Dairy Limited | Bristol | 2014 |
| Abbotsbury Engineering Limited | St Ives | 1988 |
| Abbotsford Textiles Limited | Bradford | 2017 |
| Abbott & Abbott Eyewear Limited | London | 2024 |
| Abbott & Co. (Newark) Limited | Newark | 1993 |
| Abbott & Hunt Furniture Ltd | Oxford | 2016 |
| Abbott Catering Services Limited | Dartford | 2008 |
| Abbott Cycles Ltd | London | 2023 |
| Abbott Diabetes Care Limited | Witney | 1990 |
| Abbott Fabrications Limited | Rushden | 1999 |
| Abbott Gold Trading Ltd | Taunton | 2026 |
| Abbott Mellor Limited | Oldham | 2019 |
| Abbott Rapid Diagnostics Limited | Maidenhead | 1983 |
| Abbott Signs (Northampton) Limited | Wellingborough | 2007 |
| Abbott Signs Limited | Wickford | 1999 |
| Abbott Smart Storage Solutions Ltd | Leigh-On-Sea | 2025 |
| Abbott Vascular Devices (2) Limited | Maidenhead | 2001 |
| Abbott Woodworks Ltd | London | 2022 |
| Abbotts Manufacturing Limited | Birmingham | 2011 |
| Abbotts Mechanical and Electrical Ltd | Enfield | 2007 |
| Abbotts' Living Wood Limited | Worcester | 2003 |
| Abbviame Ltd | Birmingham | 2025 |
| Abbvie Australasia Holdings Limited | Maidenhead | 2001 |
| Abbvl Limited | London | 2016 |
| Abbward Aluminium Ltd | Pudsey | 2026 |
| Abby Direct Timber Supplies Ltd | London | 2020 |
| Abby Welding Limited | Euxton Lane, Euxton | 2011 |
| Abby.Ir Limited | London | 2025 |
| Abbybliss Ltd | Westbury | 2016 |
| Abbyo's Artisan Gelato Limited | Beverley | 2024 |
| Abbysinia Gems and Jewellery Ltd | London | 2026 |
| ABC (Halifax) Limited | Bradford | 2009 |
| ABC Alasdair Bell Carpentry Ltd | London | 2020 |
| ABC Blinds & Curtains Limited | Glasgow | 2014 |
| ABC Blinds (South West) Limited | Bristol | 2004 |
| ABC Blinds (Wessex) Ltd | Merriott | 2023 |
| ABC Boats (Boston) Limited | Boston | 2018 |
| ABC Boats Ltd | Boston | 2025 |
| ABC Building and Joinery Ltd | Leicester | 2020 |
| ABC Cakes Ltd | Chester | 2021 |
| ABC Castings Ltd | Manchester | 2020 |
| ABC Chemicals Limited | Weston-Super-Mare | 2013 |
| ABC CNC and Fabrications Ltd | Boston | 2024 |
| ABC Coding Limited | Kettering | 2010 |
| ABC Coffee Roasters Ltd | London | 2008 |
| ABC Components Limited | High Wycombe | 2006 |
| ABC Concrete Ltd | Grantham | 2021 |
| ABC Container's Ltd | Canvey Island | 2021 |
| ABC Digital Systems Limited | Fareham | 2007 |
| ABC Ductwork Limited | Chislehurst | 2017 |
| ABC Fabrications Limited | Ammanford | 2022 |
| ABC Fashion House Limited | Chessington | 2024 |
| ABC Games, Design & Development Limited | Belfast | 2024 |
| ABC Heating Services Ltd | Leicester | 2005 |
| ABC Industrial Doors Limited | Manchester | 2000 |
| ABC Leisure Group Limited | Worcestershire | 1993 |
| ABC Lifts Ltd | Watford | 2024 |
| ABC Lutherie Ltd | Spalding | 2008 |
| ABC Macintosh Limited | Corby | 1998 |
| ABC Maintenance London Ltd | London | 2018 |
| ABC Marine Services Limited | Brierley Hill | 2008 |
| ABC Mobility Group Ltd | Alfreton | 2020 |
| ABC Mobility Holdings Ltd | Alfreton | 2016 |
| ABC Motorcycles Ltd | Swaffham | 2024 |
| ABC Packaging Limited | Crewe | 1993 |
| ABC Power Solutions Ltd | Stafford | 2003 |
| ABC Power Systems Ltd | Preston | 2011 |
| ABC Print and Design Limited | London | 2016 |
| ABC Print London Limited | Doncaster | 2020 |
| ABC Re-Upholstery Limited | Neath | 2026 |
| ABC Refrigeration & Air Conditioning Ltd | Northolt | 2021 |
| ABC Refrigeration Ltd | Watford | 2019 |
| ABC Services South Wales Limited | Tredegar | 2015 |
| ABC Shelving Limited | Walsall | 2013 |
| ABC Shirts Limited | London | 1988 |
| ABC Sign & Print Ltd | Barry | 2020 |
| ABC Stonemasonry Ltd | Sleaford | 2024 |
| ABC Timber Ltd | Bradford | 2022 |
| ABC TP Ltd | Tavistock | 2020 |
| ABC UK Trading & Power Ltd | London | 2011 |
| ABC Upholstery Limited | Blackburn | 2002 |
| Abc.London.Construction Ltd | Sutton | 2018 |
| Abcab CNC Solutions Ltd | Droitwich | 2021 |
| Abcam Limited | Cambridge | 1998 |
| Abcd Lift Specialist Ltd | Watford | 2021 |
| ABCDE1 Limited | Weybridge | 1982 |
| Abco Design Limited | | 1991 |
| Abco Electric Service Limited | Buckhurst Hill | 1972 |
| Abco International Ltd | London | 2025 |
| Abco Kovex (N.I.) Limited | Belfast | 2018 |
| Abco Kovex (UK) Limited | London | 2012 |
| Abco Seals Limited | South Yorkshire | 1989 |
| Abco Windows Limited | Carlisle | 2002 |