| Afluex Ltd | Other services | 2020 |
| AFM Tractors Limited | Wholesale & retail | 2019 |
| Afritide Foods Limited | Wholesale & retail | 2025 |
| Afro Culture Heritage CIC | Education | 2023 |
| Afsar Williams Limited | Professional & scientific | 2022 |
| AG & Co Health Ltd | Health & social care | 2022 |
| AG Agricultural Contracting Ltd | Transport & logistics | 2024 |
| Agabis Ltd | Information & communication | 2022 |
| Agatte Ltd | Other services | 2020 |
| Agent Response Limited | Information & communication | 2023 |
| Aggregate Recycling Shropshire Ltd | Transport & logistics | 2026 |
| Aghoco 1507 Limited | Financial services | 2017 |
| AGL Electrical (Shropshire) Ltd | Construction | 2011 |
| AGL Training Ltd | Education | 2017 |
| Agnes Healthcare Ltd | Health & social care | 2018 |
| Agoko Consulting Limited | Professional & scientific | 2021 |
| Agoogi Limited | Health & social care | 2022 |
| Agriculture House Limited | Real estate | 2026 |
| Agriffin Ltd | Information & communication | 2008 |
| AGS Aluminium Glass Systems Limited | Manufacturing | 2016 |
| AGS Childcare Ltd | Education | 2026 |
| AH Properties Solution Ltd | Real estate | 2025 |
| Ahanta Estates Limited | Real estate | 2025 |
| Ahlocktech Limited | Professional & scientific | 2024 |
| Aigbokhai Medical Services Ltd | Health & social care | 2025 |
| Air Rescue Group Ltd | Financial services | 2025 |
| Air Rescue Training & Simulation Ltd | Education | 2022 |
| Air Rescue UK Ltd | Transport & logistics | 2015 |
| Air Systems Telford Limited | Manufacturing | 1998 |
| Airco Products Ltd. | Professional & scientific | 1975 |
| AIREA51 Holdings Ltd | Financial services | 2024 |
| AIREA51 Limited | Arts & recreation | 2017 |
| AIREA51 Property Ltd | Real estate | 2023 |
| Airgonomics Limited | Manufacturing | 1992 |
| Airtemp Control Limited | Energy | 2008 |
| Airxcite Limited | Arts & recreation | 1997 |
| AJ Design Interiors Limited | Professional & scientific | 2024 |
| AJ Tree Services Limited | Administrative & support | 2024 |
| AJ Vehicles Ltd | Wholesale & retail | 2021 |
| AJA Property Management Limited | Real estate | 2007 |
| Ajac Solutions Ltd | Hospitality | 2021 |
| Ajay. G Ltd | Real estate | 2012 |
| AJB Contracting Limited | Real estate | 2010 |
| AJB Creative Solutions Limited | Manufacturing | 2021 |
| AJH Roofing Co (Reading) Limited | Construction | 2016 |
| AJR Multi Trade Ltd | Manufacturing | 2022 |
| AJS Entertainment Limited | Administrative & support | 2022 |
| AJS Shropshire Ltd | Administrative & support | 2019 |
| Ajsw Limited | Hospitality | 2020 |
| Ajur Ltd | Health & social care | 2010 |
| Ajusa UK Ltd | Wholesale & retail | 2015 |
| AK Auto Parts Ltd | Wholesale & retail | 2020 |
| AK Law Consultants Ltd | Other services | 2019 |
| AK Pro Garage Ltd | Construction | 2020 |
| AK Properties Development Ltd | Wholesale & retail | 2020 |
| AK27 Consulting Limited | Other services | 2023 |
| Akasas Ltd | Administrative & support | 2020 |
| Akatus Ltd | Other services | 2019 |
| AKM Heating Group Ltd | Construction | 2018 |
| Akoto Ltd | Professional & scientific | 2026 |
| Aktive Tech Ltd | Information & communication | 2019 |
| Aktrion Aftermarket UK Limited | Wholesale & retail | 2013 |
| Aktrion Group Limited | Professional & scientific | 2000 |
| Aktrion Holdings Limited | Professional & scientific | 2004 |
| Aktrion Manufacturing Support Services Limited | Professional & scientific | 1997 |
| AKW Consulting (H&S) Ltd | Public administration | 2023 |
| AKW Global Logistics Birmingham Ltd. | Extraterritorial | 2013 |
| AL Telford Ltd | Manufacturing | 2021 |
| AL Training Academy Limited | Education | 2023 |
| Al-Madina Cash & Carry Ltd | Wholesale & retail | 2026 |
| Al-Madina Traders Limited | Wholesale & retail | 2020 |
| ALA Ltd | Extraterritorial | 2013 |
| Alalea Ltd | Manufacturing | 2018 |
| Alan C Tipping & Associates Limited | Wholesale & retail | 2002 |
| Alan Poole Motors Limited | Wholesale & retail | 2019 |
| Alasdair Hobbs Limited | Professional & scientific | 2014 |
| Albany Pizza Ltd | Hospitality | 2019 |
| Albert Stallion Holdings (Great Britain) Limited | Professional & scientific | 1994 |
| Albert's Bookings Ltd | Hospitality | 2024 |
| Albert's Shed Group Ltd | Financial services | 2025 |
| Albi Executive Travel Ltd | Transport & logistics | 2026 |
| Albida Capital Limited | Financial services | 2024 |
| Albinroy Limited | Construction | 1975 |
| Albion Homes Telford Ltd | Construction | 2021 |
| Albion Properties Telford Ltd | Real estate | 2025 |
| ALC Christmas Decorators Limited | Administrative & support | 2022 |
| ALC Telford Ltd | Manufacturing | 2021 |
| Alcedine Ecology Ltd | Professional & scientific | 2024 |
| Aldermead Development Ltd | Construction | 2021 |
| Aldermead Management Ltd | Households | 2026 |
| Aleksas Domkus Limited | Transport & logistics | 2017 |
| Alex 1982 Transport Ltd | Transport & logistics | 2018 |
| Alex Indian Grill Ltd | Hospitality | 2025 |
| Alexandra Iuga Designs Ltd | Professional & scientific | 2025 |
| ALEXVIDE0 Limited | Information & communication | 2025 |
| ALF Evans & SON Limited | Real estate | 1947 |
| Alfa-Com Solutions Ltd | Information & communication | 2025 |
| Algosys Technologies Limited | Information & communication | 2021 |
| Ali's Medical Services Ltd | Health & social care | 2020 |
| Alkai Ventures Limited | Financial services | 2020 |