| AP Cyber Security Ltd | Perth | 2021 |
| AP Dickson Enterprises Ltd | Glasgow | 2025 |
| AP Diverse Ltd. | Cardiff | 2016 |
| AP Electrical Solutions Ltd | Southall | 2024 |
| AP Engineering (UK) Ltd | Colchester | 2002 |
| AP Engineering and Fabrication Ltd | Gillingham | 2019 |
| AP Engineers & Plant Ltd | Ashby-De-La-Zouch | 2020 |
| AP Equipment Limited | Chorley | 2024 |
| AP Filtration Limited | Cheltenham | 1985 |
| AP Fire & Security Limited | Havant | 2022 |
| AP Glazing (Oldbury) Ltd. | Oldbury | 2011 |
| AP JC Bespoke Joinery Ltd | Leicester | 2020 |
| AP Junior Limited | Southampton | 2024 |
| AP Kelly Contracts (NI) Ltd. | Newry | 2013 |
| AP Maintenance Services Limited | Loughborough | 2002 |
| AP Marine Engineering Limited | New Milton | 2019 |
| AP Marine Flooring Ltd | Cardiff | 2025 |
| AP Marine Interiors Ltd | Lee-On-The-Solent | 2025 |
| AP Mechanical Handling Limited | Market Rasen | 2019 |
| AP Motors Ealing Limited | Croydon | 2025 |
| AP Parfum Ltd | London | 2025 |
| AP Pipe Limited | Burton-On-Trent | 2019 |
| AP Prime Tech Ltd | Aberdeen | 2025 |
| AP Print Group Limited | Nottingham | 2022 |
| AP Printing Solutions Ltd | Southampton | 2026 |
| AP Racing Limited | Coventry | 1999 |
| AP Renovations Group Ltd | Nottingham | 2022 |
| AP Soft Furnishings Limited | Wolverhampton | 2015 |
| AP Stonemasonry & Building Services Ltd | Dumfries | 2026 |
| AP Switchgear Limited | London | 2021 |
| AP Technology Limited | London | 2004 |
| AP Textile Limited | Bournemouth | 2013 |
| AP Trims Ltd | Dereham | 2026 |
| AP Wellness Ltd | Chelmsford | 2024 |
| AP Wind Ltd | South Shields | 2025 |
| AP Wireworx Ltd | Chatteris | 2024 |
| AP1982 Ltd. | London | 2021 |
| AP2 Maintenance Services Ltd | Rushden | 2024 |
| AP3D Solutions Limited | Hampshire | 2021 |
| APA Mechanical Repairs Limited | Tenbury Wells | 2014 |
| APA Parafricta Limited | Thame | 2004 |
| APA Productions Ltd | Manchester | 2019 |
| Apac Foods Ltd | Telford | 2025 |
| Apac Solutions Ltd. | Woodford Green | 2020 |
| Apac Vehicle Glazing Ltd | Turriff | 2021 |
| Apache A.H. Engineering Ltd | March | 2023 |
| Apache Automotive Limited | Edinburgh | 2021 |
| Apache Carpentry Limited | Taunton | 2021 |
| Apache Product Solutions Limited | Lichfield | 2021 |
| Apache Solutions Limited | Stevenage | 1986 |
| Apache Tyres Ltd | Swansea | 2016 |
| Apacor Limited | Wokingham | 1997 |
| Apaiser Limited | London | 2015 |
| Apartment Blinds Ltd | Cambridge | 2024 |
| Apartment J Limited | London | 2017 |
| Apastron Aviation Ltd | Milton Keynes | 2020 |
| Apatech Limited | Elstree | 2001 |
| Apatite Service Solutions Ltd | Upminster | 2022 |
| APB Aviation Maintenance Ltd | Oldham | 2025 |
| APB Cabinets Limited | Preston | 2025 |
| APB CNC Limited | Bradford | 2005 |
| APB Colour Print Ltd | Reading | 1972 |
| APB Computer Services Limited | Launceston | 2003 |
| APB Forever Ltd | London | 2025 |
| APB Plastics Limited | Rossendale | 1998 |
| Apbins Ltd | London | 2023 |
| Apbreaks Ltd | Leeds | 2026 |
| APC (GB) Limited | Doncaster | 1997 |
| APC Assets Limited | Liverpool | 2020 |
| APC Aviation Limited | Porthcawl | 2016 |
| APC Clothing Limited | Hull | 1999 |
| APC Communications Solutions Ltd | Kelvedon | 2015 |
| APC Crafts Ltd | Norwich | 2025 |
| APC Fabrications Ltd | Sittingbourne | 2026 |
| APC Hydraulics Limited | Feltham | 2013 |
| APC Marine Ltd | Worthing | 2022 |
| APC Solutions Ltd. | Knutsford | 2012 |
| APC Steel Services Limited | Gainsborough | 2024 |
| Apcc Future Ltd | Bristol | 2020 |
| Apco Contracts Limited | Colchester | 2004 |
| Apco Sign Systems International Limited | Doncaster | 2014 |
| Apco Sign Systems Limited | Doncaster | 2014 |
| Apco Technologies Services Ltd | Birmingham | 2021 |
| APD Carpentry & Property Services Ltd | Marlborough | 2024 |
| APD Engineering Limited | Latchingdon | 2025 |
| APD International Limited | Ross-On-Wye | 2002 |
| APD Limited | Brentwood | 1980 |
| APE Accessories Ltd | Kettering | 2014 |
| APE Ales Ltd | Liversedge | 2020 |
| APE Amusement Design Ltd | Oldham | 2016 |
| APE Barriers Limited | Stroud | 2021 |
| APE Hammerman Limited | Burntwood | 2012 |
| APE Harrison Billet Ltd. | Rochester | 2005 |
| APE Industries Co Ltd | Barnstaple | 2018 |
| APE Solutions Ltd | Tarbert | 2006 |
| APE Vape Limited | Newport | 2017 |
| APE2O Limited | Haywards Heath | 2018 |
| Apeal World Limited | London | 2022 |
| Apec Systems Limited | Coventry | 2007 |
| APEC&C0 Ltd | London | 2017 |