| 021 Ventures Ltd | Financial services | 2022 |
| 102 Turnpike Lane Management Limited | Real estate | 2002 |
| 105 City Road Management Company Limited | Real estate | 1989 |
| 13 Minute Productions Limited | Information & communication | 2023 |
| 16 ELM Road (Plymouth) Management Limited | Households | 2022 |
| 17 Sherwell Lane Limited | Households | 2025 |
| 2K Assembly and Distribution Limited | Construction | 2016 |
| 3D TV Limited | Professional & scientific | 1998 |
| 4 Technical Services Ltd | Construction | 2021 |
| 4 Twenty Limited | Arts & recreation | 2003 |
| 5 High Street Totnes Management Company Limited | Hospitality | 1989 |
| 59 Chatsworth Road Limited | Households | 2016 |
| 7 North Street Ashburton Management Limited | Households | 2025 |
| 8 ATE Catering Limited | Hospitality | 2011 |
| 8A-F Management Limited | Real estate | 2025 |
| A & B Psychologists Ltd | Education | 2017 |
| A Letter IS Better CIC | Education | 2025 |
| A Milner Consultancy Services Limited | Professional & scientific | 2023 |
| A Stanton Ltd | Construction | 2019 |
| A Tovagliari Holdings Ltd | Financial services | 2026 |
| A W Luscombe Limited | Extraterritorial | 2011 |
| A. Hosie Limited | Financial services | 2002 |
| A.E.M Classic Motorcycles Ltd | Wholesale & retail | 2015 |
| A.J. Wooldridge (West Peckham) Limited | Agriculture & fishing | 1963 |
| A.J. Wooldridge Limited | Agriculture & fishing | 1973 |
| Aaron Amusements Limited | Arts & recreation | 2000 |
| AB Investments SW Ltd | Real estate | 2022 |
| Abbey Clinical Pathology Limited | Extraterritorial | 2010 |
| Aberford Properties Limited | Real estate | 1964 |
| Absolute Aspects Ltd | Manufacturing | 2023 |
| Academe International Ltd | Professional & scientific | 2024 |
| Academic Programme Development Ltd. | Professional & scientific | 2016 |
| Access to Communication Limited | Health & social care | 2021 |
| Ace Enhanced Services Limited | Education | 2017 |
| Acme Plus Limited | Construction | 2022 |
| Acton Digital Limited | Information & communication | 2017 |
| Actual Support Limited | Education | 2021 |
| Adama Events Limited | Hospitality | 2020 |
| Adams and Mack Limited | Wholesale & retail | 2022 |
| Adams Bronze Limited | Wholesale & retail | 2018 |
| Agile Duck Limited | Information & communication | 2021 |
| AJ Construction (Devon) Ltd | Construction | 2025 |
| Ajsa Limited | Other services | 2018 |
| Ak.A Ecohomes Limited | Construction | 2022 |
| Akmbs Professional Services Limited | Real estate | 2012 |
| Alastairdavid Ltd | Hospitality | 2013 |
| Alia Wellbeing Ltd | Manufacturing | 2026 |
| Alistair Edmunds Software Consulting Limited | Information & communication | 2019 |
| Allerdown Farms Limited | Agriculture & fishing | 2012 |
| Alliance Francaise - Devon Ltd | Education | 2007 |
| Aloftco Limited | Wholesale & retail | 2015 |
| Alphabet Music Ltd | Information & communication | 2025 |
| Altctrl Holdings Limited | Financial services | 2026 |
| Altctrl Limited | Information & communication | 2018 |
| Altitude 100 Ltd | Information & communication | 2022 |
| Amazen Community Markets Ltd | Wholesale & retail | 2025 |
| Amazen Marketplace Ltd | Wholesale & retail | 2025 |
| Amber Roots Ltd | Real estate | 2014 |
| Ameld Limited | Professional & scientific | 2013 |
| ANB Consultants (Devon) Ltd | Professional & scientific | 2026 |
| Anchor Court (Kingsbridge) Management Company Limited | Administrative & support | 1989 |
| Anchor-It Ltd | Information & communication | 2007 |
| Andrew Kirby Architects Limited | Professional & scientific | 2017 |
| Andrew Venning Ltd | Professional & scientific | 2019 |
| Andy Clarke (South West) Limited | Administrative & support | 2004 |
| Andy Waitman Carpentry & Joinery Limited | Construction | 2013 |
| Angdim Technology Ltd | Information & communication | 2022 |
| Angels on Board Ltd | Administrative & support | 2014 |
| Anglo Domus London Limited | Education | 1994 |
| Animate Earth Collective CIC | Education | 2025 |
| Anjosa Ltd | Wholesale & retail | 2023 |
| Annex 10 Limited | Health & social care | 2002 |
| Annies Fruit Shop Ltd | Wholesale & retail | 2011 |
| APM Healthcare Advisory Ltd | Professional & scientific | 2014 |
| Apmd Holdings Limited | Financial services | 2018 |
| Apothespa (Totnes) Limited | Wholesale & retail | 2009 |
| Apothespa Cosmetics Limited | Manufacturing | 2024 |
| Appetite for Construction Limited | Construction | 2014 |
| Apple Barn Studio Ltd | Arts & recreation | 2024 |
| Apple Lane Eatz Ltd | Hospitality | 2024 |
| APR Health Limited | Professional & scientific | 2005 |
| Apricot Centre CIC | Agriculture & fishing | 2010 |
| Arbow Garage Limited | Wholesale & retail | 2012 |
| Arcturus Clinic Limited | Health & social care | 2017 |
| Arete Climbing Ltd | Manufacturing | 2020 |
| Argand Solutions Limited | Manufacturing | 2012 |
| ARK Inns(Paignton) Limited | Hospitality | 2018 |
| Arrows Strategic Systems Engineering Ltd | Professional & scientific | 2011 |
| Art Locum Ltd | Wholesale & retail | 2022 |
| Artisan HQ Ltd | Manufacturing | 2018 |
| Ashcross Kennels and Cattery Limited | Other services | 2011 |
| Ashgrove Sales and Marketing Limited | Wholesale & retail | 2005 |
| Astar Artes Recordings Limited | Information & communication | 2009 |
| Atkins Property Services Limited | Real estate | 2017 |
| Attachment Parenting Global Ltd | Education | 2025 |
| Attachment Parenting UK C.I.C. | Information & communication | 2012 |
| Atwork Studio Limited | Administrative & support | 2008 |
| Aurelia Creative Studios Ltd | Information & communication | 2025 |
| Autogear Ltd | Wholesale & retail | 2021 |
| Automated Homes Limited | Construction | 2004 |