| Armstrong Bridging International Limited | Financial services | 2016 |
| Armstrong Solar Holdings Limited | Energy | 2013 |
| Armstrong Wolfe Ltd | Administrative & support | 2010 |
| Arndale Residents Association Limited | Households | 1990 |
| Arnold Bartosch Ltd | Professional & scientific | 2014 |
| Arnold Property Ltd | Real estate | 2025 |
| Arnold Warner Groundworks Ltd | Construction | 2023 |
| Aroma Bourton Limited | Hospitality | 2015 |
| Aroma Holdings Cheltenham Ltd | Financial services | 2024 |
| Arpista Limited | Financial services | 2021 |
| Arrest the Pest Ltd | Agriculture & fishing | 2021 |
| Arrow Disposables UK Ltd. | Manufacturing | 2019 |
| ARS Hotels Limited | Hospitality | 2021 |
| Art Connection Direct Ltd | Professional & scientific | 2016 |
| Art Environments (International) Limited | Construction | 2002 |
| Art in Merchandise Ltd | Wholesale & retail | 2026 |
| Art Sought Ltd | Wholesale & retail | 2024 |
| Art Union Limited | Wholesale & retail | 2023 |
| Art Works Design Consultants (Cheltenham) Limited | Professional & scientific | 2008 |
| Artgoal Limited | Wholesale & retail | 1990 |
| Arthurs Construction Ltd | Construction | 2024 |
| Artia Contracting Ltd | Manufacturing | 2026 |
| Artis Bathrooms Ltd | Construction | 2019 |
| Artisan Print, Design & Marketing Ltd | Manufacturing | 2021 |
| Artistic Blinds Commercial Ltd | Wholesale & retail | 2011 |
| Artistic Blinds Limited | Wholesale & retail | 2011 |
| Arto Group Limited | Information & communication | 2018 |
| Artoux Property Ltd | Construction | 2018 |
| Arts Signature Limited | Education | 2015 |
| Arvik&Co Ltd | Transport & logistics | 2018 |
| Aryan Arun Limited | Health & social care | 2017 |
| AS Physiotherapy Limited | Health & social care | 2023 |
| AS Topi Building & Plumbing Ltd | Construction | 2025 |
| ASA Asbestos Consultancy Ltd | Construction | 2004 |
| Asana Associates Limited | Wholesale & retail | 2016 |
| Asanka Haven Limited | Hospitality | 2025 |
| Ascali Ltd | Transport & logistics | 2020 |
| Ascend Scaffolding Ltd | Construction | 2023 |
| Ascendx Group Ltd | Financial services | 2025 |
| Asco Property Management Ltd | Real estate | 2025 |
| Ascomm Ltd | Wholesale & retail | 2021 |
| Ascott Estate Solar Limited | Energy | 2023 |
| ASH Court Bishops Cleeve Management Company Ltd | Households | 2023 |
| ASH Farm Cotswolds Ltd | Hospitality | 2023 |
| ASH Moss Limited | Agriculture & fishing | 2017 |
| ASH Realisation Limited | Financial services | 2021 |
| Ashbee Dental Care Ltd | Health & social care | 2025 |
| Ashbourne Airfield Management Company Limited | Households | 2025 |
| Ashbury Management Ltd | Wholesale & retail | 2025 |
| Ashcombe Holdings Ltd | Real estate | 2026 |
| Ashcroft Applied Research Ltd | Information & communication | 2025 |
| Ashfield Cheltenham (Management) Company Limited | Households | 1997 |
| Ashfield Plumbing Services Limited | Construction | 2025 |
| Ashfields Residents Management Company Limited | Households | 2015 |
| Ashford House 1992 Management Company Limited | Households | 1992 |
| Ashford Road Cheltenham Management Company Limited | Households | 1982 |
| Ashlea Financial Planning Limited | Financial services | 2005 |
| Ashlea Holdings Company Ltd | Financial services | 2021 |
| Ashley Court (Charlton Kings) Limited | Households | 2006 |
| Ashman Construction Limited | Wholesale & retail | 1989 |
| Ashstep Surveys Ltd | Professional & scientific | 2026 |
| Ashton & Daniels Limited | Wholesale & retail | 2015 |
| Ashton Court Home Owners Limited | Households | 2020 |
| Ashton Woods (Property Consultancy) Ltd | Real estate | 2020 |
| Ashton Woods Property Valuers Ltd | Real estate | 2022 |
| Ashtop Limited | Hospitality | 2008 |
| Ashway House (Management Company) Limited | Households | 2003 |
| Ashwood Capital (Holdings) Limited | Professional & scientific | 2026 |
| Ashwood Capital (Properties) Limited | Professional & scientific | 2022 |
| Asinit Limited | Information & communication | 2007 |
| ASJ Luxury Travel Ltd | Administrative & support | 2018 |
| Askham Court Management Company Limited | Households | 2002 |
| ASL Signature Limited | Real estate | 2026 |
| Asms Takeaway Ltd | Hospitality | 2024 |
| Asnm Properties Ltd | Real estate | 2024 |
| Aspect International Property Limited | Real estate | 2008 |
| Aspen Studio Limited | Professional & scientific | 2026 |
| Aspey Lawrence & Co. Limited | Financial services | 1977 |
| Aspire Facilities Management SW Ltd | Administrative & support | 2025 |
| Aspire Foundation | Education | 2013 |
| ASR Aesthetics Ltd | Wholesale & retail | 2017 |
| Assessme Ltd | Information & communication | 2010 |
| Assheton Carter Limited | Professional & scientific | 2013 |
| Associated Commercial Finance Limited | Financial services | 2004 |
| Assured Bathing Solutions Limited | Construction | 2016 |
| Assured Personnel Ltd | Administrative & support | 2019 |
| Assured Vehicle Repair Centre Ltd | Wholesale & retail | 2019 |
| Assureweb Limited | Professional & scientific | 2013 |
| Aster House NO12 Ltd. | Real estate | 2021 |
| Asterfield Residents' Association Ltd | Households | 1992 |
| Aston & Earle Transport Ltd | Transport & logistics | 2026 |
| Aston Associates Limited | Hospitality | 1996 |
| Aston Blank Poultry Ltd | Administrative & support | 2025 |
| Aston Cross Residents Limited | Real estate | 2018 |
| Aston Cross Residents Poplar Close Limited | Real estate | 2026 |
| Aston Grange Solar Limited | Energy | 2022 |
| Aston Reach Ltd | Information & communication | 2021 |
| Aston Saunders Limited | Professional & scientific | 2017 |
| Astor-Bannerman (Medical) Limited | Manufacturing | 1993 |
| Astor-Bannerman Management Topco Limited | Financial services | 2021 |