| Anchorway Estates Ltd | Real estate | 2024 |
| AND Stores Ltd | Wholesale & retail | 2016 |
| And&Cc Ltd | Transport & logistics | 2015 |
| Anda Logistic Ltd | Transport & logistics | 2016 |
| Andalus Solutions Limited | Information & communication | 2001 |
| Andanik Trans Ltd | Transport & logistics | 2015 |
| Andantex Limited | Wholesale & retail | 1940 |
| Andcar Catering Ltd | Hospitality | 2017 |
| Ander Builders Ltd | Construction | 2024 |
| Anderson Francombe Properties Ltd | Real estate | 2025 |
| Anderson Security Services Limited | Administrative & support | 2016 |
| Anderson Surgical Limited | Health & social care | 2020 |
| Anderton Road Coventry Management (NO 1) Limited | Real estate | 1996 |
| Andhra Delights Ltd | Hospitality | 2026 |
| Andia Ltd | Real estate | 2025 |
| Andrada Style Ltd | Construction | 2020 |
| Andradaluk Limited | Extraterritorial | 2018 |
| Andreas Driving Services Ltd | Transport & logistics | 2016 |
| Andreas Haulage Ltd | Transport & logistics | 2016 |
| Andreeasv Ltd | Transport & logistics | 2026 |
| Andrei 74 Fast Limited | Transport & logistics | 2021 |
| Andrei Auto Body Ltd | Wholesale & retail | 2025 |
| Andrei Autotech Garage Ltd | Wholesale & retail | 2022 |
| Andrei Bros Express Ltd | Transport & logistics | 2025 |
| Andrei Construction Group Ltd | Construction | 2025 |
| Andrei LAR Ltd | Transport & logistics | 2015 |
| Andrei SP Limited | Transport & logistics | 2018 |
| Andreilucian Trans Ltd | Transport & logistics | 2025 |
| Andrelecia Limited | Health & social care | 2016 |
| Andrew Birch Limited | Construction | 2003 |
| Andrew Britton BD Services Ltd | Administrative & support | 2019 |
| Andrew Dashper Limited | Information & communication | 2019 |
| Andrew Evans Estate Agents Limited | Real estate | 2019 |
| Andrew O'Keeffe Electrical Contractors Limited | Construction | 2013 |
| Andrew Robert FOX Ltd | Information & communication | 2018 |
| Andrew Ward Machine Tool Services Ltd | Manufacturing | 2016 |
| Andronache Ares 2 Limited | Wholesale & retail | 2025 |
| Andrusida Care Limited | Public administration | 2022 |
| Andy & Helens Fish Bar UK Ltd | Manufacturing | 2018 |
| Andy Entertainments Ltd | Arts & recreation | 2023 |
| Andy Parsons Building Contractors Ltd | Construction | 2026 |
| Andy Pittaway Limited | Wholesale & retail | 2019 |
| Andy Salon 2014 Limited | Other services | 2026 |
| Andy Spencer Painting & Decorating Limited | Construction | 2004 |
| Andy Whitelaw Joinery Limited | Construction | 2017 |
| Andy's Chippy (Beds) Ltd | Hospitality | 2019 |
| Aneka Limited | Information & communication | 2009 |
| Anfield Court Residents' Association Limited | Households | 1981 |
| ANG Investment Management Ltd | Extraterritorial | 2015 |
| Angel B2B Communications Limited | Professional & scientific | 2014 |
| Angel BC Ltd | Information & communication | 2019 |
| Angel Business Communications Limited | Information & communication | 1985 |
| Angel Dreams Limited | Wholesale & retail | 2025 |
| Angel Publishing Limited | Information & communication | 1994 |
| Angel Shoulder Services Limited | Wholesale & retail | 2016 |
| Angel's Beauty Laser and Skin Clinic Ltd | Other services | 2019 |
| ANGEL14 Ltd | Professional & scientific | 2022 |
| ANGEL143CONSTRUCTION Ltd | Construction | 2026 |
| Angelic Infinity Ltd | Wholesale & retail | 2025 |
| Angelica Marketing Ltd | Administrative & support | 2021 |
| Angels & Co Care Limited | Health & social care | 2020 |
| Angels Auto Spa Ltd | Administrative & support | 2025 |
| Angels Cleaning Services Ltd | Wholesale & retail | 2023 |
| Angels Solicitors LLP | | 2008 |
| Angh Crst Ltd | Transport & logistics | 2026 |
| Angle Artist Management Limited | Professional & scientific | 2009 |
| Angles Security Ltd | Administrative & support | 2018 |
| Anglo Agents Limited | Transport & logistics | 2007 |
| Anglo Emprise Ltd | Professional & scientific | 2020 |
| Anglo Indonesian Mining Limited | Mining & quarrying | 2005 |
| Anglo-Nordic Burner Products Limited | Wholesale & retail | 1971 |
| Angry Baby Limited | Professional & scientific | 2016 |
| Angry Sprite Ltd | Information & communication | 2022 |
| Angstrom Consultants Ltd | Information & communication | 2017 |
| Angstrom Project Limited | Information & communication | 2023 |
| ANI Beki Properties Ltd | Real estate | 2026 |
| ANI PVT Limited | Construction | 2023 |
| Anichi Network Engineering Ltd. | Information & communication | 2025 |
| Aniempire Ltd | Wholesale & retail | 2025 |
| Anika IT Solutions Limited | Information & communication | 2023 |
| Anikacare Limited | Health & social care | 2020 |
| Anikolad Properties Limited | Real estate | 2025 |
| Anismiruna Ltd | Construction | 2024 |
| Anita Patel & Associates Limited | Information & communication | 2012 |
| Anitech Ltd | Transport & logistics | 2013 |
| ANJ Bargain Ltd | Wholesale & retail | 2017 |
| Anjla Limited | Professional & scientific | 2019 |
| Anjuman Support Ltd | Health & social care | 2012 |
| Anka Tech Solutions Ltd | Wholesale & retail | 2024 |
| Ankar Trading Limited | Wholesale & retail | 2026 |
| Anker Service Centre Limited | Wholesale & retail | 2009 |
| Ankh Developers Ltd | Information & communication | 2026 |
| Ankhkasta Natural Healing Ltd | Health & social care | 2023 |
| Anklm Associates Limited | Wholesale & retail | 2023 |
| ANN Corrigan Social Care Ltd | Health & social care | 2019 |
| Anna Cleaners Ltd | Transport & logistics | 2019 |
| Anna Express Food Limited | Hospitality | 2025 |
| Anna Transportation Ltd | Transport & logistics | 2025 |
| Anna Watson Agencies Limited | Wholesale & retail | 2022 |
| Annai Express Food Limited | Hospitality | 2023 |