| AAM Capital Limited | Oxted | 2016 |
| AAM Distribution Ltd | Luton | 2024 |
| AAM Drivers Ltd | Peterborough | 2025 |
| AAM Fleetcentre Ltd | Eaton Socon | 2020 |
| AAM Gardening Services Ltd | Queenborough | 2017 |
| AAM Logistics Ltd | London | 2017 |
| AAM Rental Management Ltd | St. Neots | 2018 |
| AAM Security Ltd | London | 2021 |
| AAM Techventures Ltd | Rotherham | 2015 |
| Aama Car Wash Ltd | Derby | 2025 |
| Aamadevi Limited | Milton Keynes | 2024 |
| Aamani Ltd | London | 2020 |
| Aamc Executive Search Limited | London | 2025 |
| Aame Services Ltd | Ilford | 2021 |
| Aamg UK Ltd | Wimborne | 2022 |
| Aaminimalism.Online Ltd | London | 2025 |
| Aamot Inc Ltd | Pencoed, Bridgend | 2024 |
| Aams Solutions Ltd | Preston | 2025 |
| Aana Investments Ltd | Manchester | 2017 |
| Aana Medical Ltd | Bradford | 2022 |
| Aandika Ltd | Doncaster | 2021 |
| Aandlgoodwin Ltd | Crawley | 2023 |
| Aangel Secretarial Services Ltd | Ilford | 2020 |
| Aankh Limited | Welwyn Garden City | 2016 |
| Aanraden Associates Ltd | Salisbury | 2005 |
| Aansaea Ltd | Birmingham | 2025 |
| Aantarik Group Limited | Orpington | 2019 |
| Aanuore Services Limited | Portsmouth | 2025 |
| AAO Consultants Limited | London | 2015 |
| Aaoe Limited | Preston | 2025 |
| AAP Aviation Management UK Limited | London | 2015 |
| AAP Aviation UK Limited | London | 2017 |
| AAP Cleaning Services Ltd | Folkestone | 2025 |
| AAP Developments Ltd | London | 2008 |
| AAP Electrical Contractors Limited | Milnrow | 2002 |
| AAP Ground Maintenance Ltd | Sidcup | 2016 |
| AAP Group Holdings Ltd | London | 2008 |
| AAP Group of Companies Limited | London | 2014 |
| AAP Housing Services Limited | London | 2015 |
| AAP Security Ltd | London | 2023 |
| Aapa Limited | Glasgow | 2009 |
| Aapcom Ltd | Southampton | 2023 |
| Aapg-Europe | London | 2008 |
| Aapoloprime Cleaning Limited | Cardiff | 2026 |
| AAR Cinematography Limited | London | 2021 |
| AAR Imports Limited | Scunthorpe | 2025 |
| AAR Pro Staffing Ltd | Leicester | 2025 |
| AAR Recruitment Solutions Ltd | Coalville | 2024 |
| Aaramis Business Solutions Ltd | Orpington | 2013 |
| Aarans Image Ltd | London | 2024 |
| Aarav Trading Ltd | Surbiton | 2017 |
| Aarc Realty Ltd | Barnet | 2025 |
| Aardee Investment Holdings Limited | Watford | 2015 |
| Aardonyx Ltd | Warrington | 2023 |
| Aardvark Artroom Ltd | Nottingham | 2013 |
| Aardvark Cleaning Services Ltd | Whitchurch | 2019 |
| Aardvark Cleaning Solutions Ltd | Bolton | 2025 |
| Aardvark Education Consultancy Limited | Derby | 2016 |
| Aardvark Mcleod Limited | Tidworth | 2005 |
| Aardvark Mobility Ltd | London | 2020 |
| Aardvark Rentals Ltd | Paignton | 2020 |
| Aardvark Safaris Limited | Tidworth | 1999 |
| Aardvark Swift Recruitment Limited | Rotherham | 2005 |
| Aarem Limited | Colchester | 2017 |
| Aarer Limited | High Wycombe | 2020 |
| Aarez World Travel Ltd | Hounslow | 2025 |
| Aarfore Ltd | West Drayton | 2013 |
| Aargus Security Technologies Limited | Southampton | 2001 |
| Aarhus Fire Protection Limited | Manchester | 2003 |
| Aaria Cars Limited | Harrow | 2021 |
| Aariel Consultancy Limited | Stansted Mountfitchet | 2024 |
| Aarifa Limited | London | 2023 |
| Aarj Ltd | London | 2016 |
| Aark Homes Ltd | Essex | 2016 |
| Aarmish Ltd | Sheffield | 2019 |
| Aarogyamantra Ltd | Crawley | 2017 |
| Aaron & Co Limited | Carshalton | 2014 |
| Aaron & Leah Limited | Grays | 2023 |
| Aaron B Services Ltd | Bury | 2025 |
| Aaron Breeze Pest Control Limited | Houghton Le Spring | 2012 |
| Aaron Dennis Limited | Reading | 2016 |
| Aaron Designs Limited | Barnet | 2015 |
| Aaron Engineering Limited | Llanrumney | 2013 |
| Aaron Francis Ltd | Wallington | 2021 |
| Aaron Guard Limited | Stockport | 2017 |
| Aaron J Gale Landscaping Limited | Farnborough | 2021 |
| Aaron James Security Consultancy Limited | Colchester | 2024 |
| Aaron Landscapes Limited | Colchester | 2010 |
| Aaron Management Holdings Ltd | Hatfield | 2026 |
| Aaron Masih Ltd | London | 2026 |
| Aaron Premium Finance Limited | Chessington | 2010 |
| Aaron Putman Ltd | Preston | 2025 |
| Aaron Recruitment Ltd | Worthing | 2022 |
| Aaron Sokell Ltd | London | 2023 |
| Aaron VFX Ltd | London | 2025 |
| Aaron Walker Racing Limited | Hereford | 2022 |
| Aaron Wallis Recruitment & Training Limited | Milton Keynes | 2007 |
| Aaron West Incorporated Limited | Aberdeen | 2013 |
| Aaron Wheeler Limited | Woodford Green | 2005 |
| Aaron's Services Limited | Chester | 2026 |