| AAB Global Ltd | London | 2011 |
| AAB Holidays Limited | Dunmow | 2021 |
| AAB Maintenance Limited | Nottingham | 2019 |
| AAB Northwest Ltd | Preston | 2019 |
| AAB People Consulting Limited | Aberdeen | 2014 |
| AAB Security Services Limited | Manchester | 2020 |
| AAB Security Solitions Ltd | Northolt | 2025 |
| AAB Storage Limited | Newport Pagnell | 2023 |
| AAB Team Limited | Leeds | 2013 |
| AAB Traders Ltd | Bradford | 2019 |
| Aabam Limited | London | 2024 |
| Aaban Cuisine Ltd | St. Albans | 2017 |
| Aabc Logistics Ltd | Stevenage | 2015 |
| Aable Management Consultants Limited | Paisley | 2017 |
| AAC (London) Ltd | London | 1999 |
| AAC (North West) Ltd | Oldham | 2020 |
| AAC Corporation Limited | Loughton | 2025 |
| AAC Essex Ltd | Maldon | 2023 |
| AAC Real Estate Ltd | Glasgow | 2013 |
| AAC Security Ltd | London | 2015 |
| AAC Sport Ltd | Angus | 2013 |
| AAC Studio Limited | Tunbridge Wells | 2009 |
| AAC Technical Services Limited | Thetford | 2012 |
| AAC Technologies (Scotland) Limited | Edinburgh | 2020 |
| Aacguards Limited | London | 2025 |
| Aacm Ltd | London | 2023 |
| Aaconnected Ltd | Southall | 2026 |
| Aacorn Engineering Limited | Solihull | 2012 |
| Aaction Electronics Limited | Ellesmere Port | 1988 |
| Aactor Limited | Potters Bar | 1998 |
| AAD Exclusive Ltd | Birmingham | 2024 |
| AAD Pembs Limited | Pembroke Dock | 2016 |
| Aada Ltd | Borehamwood | 2017 |
| Aadee Ltd | London | 2014 |
| Aadept Environmental Limited | Sidcup | 2003 |
| Aadi CCP Limited | Harrow | 2017 |
| Aadi International UK Limited | Leicester | 2018 |
| Aadi IT Limited | Warrington | 2014 |
| Aadil Pharm Ltd | Cardiff | 2018 |
| Aadmi Ltd | London | 2021 |
| Aadmzh Ltd. | Manchester | 2007 |
| Aadoraa & Company Ltd | Harrow | 2011 |
| Aadr Ltd | London | 2025 |
| Aadusters Ltd | Brighton And Hove | 2025 |
| Aadveka Solutions Ltd | Northolt | 2019 |
| AAE Creative Business Ltd | Smethwick | 2025 |
| AAE Maintenance Ltd | Birmingham | 2026 |
| Aaed Limited | Northampton | 2020 |
| Aaeuk Ltd | Heywood | 2018 |
| AAF Carwash Ltd | Kilmarnock | 2024 |
| AAF Cleaning Services Limited | Reading | 2022 |
| Aafa Care Ltd | London | 2025 |
| Aafee Barbers Limited | West Bromwich | 2011 |
| Aafee Barbers Tividale Limited | Tipton | 2015 |
| Aaff Associates Limited | Manchester | 2025 |
| Aafiya Care Limited | Harrow | 2018 |
| AAG Solutions Ltd | Telford | 2010 |
| AAG Corporate Services Ltd | Solihull | 2010 |
| Aagm Ltd | Leicester | 2017 |
| Aagy Limited | London | 2008 |
| AAH Consulting Limited | Worthing | 2010 |
| Aahill Trading Ltd | Sutton | 2024 |
| Aahoo Limited | Old Amersham | 2012 |
| AAI Agri Ltd | London | 2024 |
| AAI International Limited | Basildon | 2017 |
| AAI Logistics Limited | Basildon | 2006 |
| AAI Risk Consultancy Limited | Altrincham | 2022 |
| AAI Solutions Services Ltd | Leeds | 2024 |
| AAI Technologies Limited | Manchester | 2017 |
| Aaimas Properties Ltd | Greenford | 2019 |
| Aairini Ltd | Huddersfield | 2026 |
| Aaisha Aaliyah Limited | Warrington | 2025 |
| Aaiwa London HR Limited | London | 2023 |
| AAJ & MAX Cars Ltd | London | 2018 |
| AAJ Cobham Fencing Ltd | Cobham | 2021 |
| AAJ Commercialcleaning Services Ltd | Stockton-On-Tees | 2023 |
| AAJ Construction Limited | Altrincham | 2007 |
| AAJ Supply Ltd | London | 2024 |
| AAJ Supply Tool Hire Ltd | Altrincham | 2025 |
| Aajj Consultants Limited | London | 2023 |
| Aajway Cars Limited | Stanmore | 2021 |
| AAK Cars Ltd | London | 2019 |
| AAK Healthcare Services Ltd | Surrey | 2018 |
| AAK Logistics Limited | Prestwick | 2014 |
| AAK9 Security Ltd | Romford | 2022 |
| Aakankha Enterprises Limited | Grimsby | 2010 |
| Aakk Limited | Purley | 2016 |
| Aakt Business Services Limited | London | 2000 |
| AAL Cleanng Ltd | London | 2026 |
| AAL E Abbas Tours Ltd | Swansea | 2024 |
| AAL Ventures Limited | London | 2024 |
| Aalamoyo Ltd | Portsmouth | 2012 |
| Aalanzs Recruitment Services Ltd | Leeds | 2017 |
| Aaliaukltd Limited | London | 2025 |
| Aalign Ltd. | London | 2020 |
| Aalin Professional Services Ltd | Swindon | 2024 |
| Aalishaluxuries Ltd | Leighton Buzzard | 2024 |
| Aaliya Overseas Ltd | Coventry | 2025 |
| Aaljp Solutions Ltd | Huddersfield | 2026 |
| AAM Builders UK Limited | Birmingham | 2016 |