| 1000 Flags Limited | Wholesale & retail | 2012 |
| 2 College Road Exeter Management Limited | Households | 2009 |
| 24/7 L.F.T Ltd | Transport & logistics | 2023 |
| 313 Capital Properties Ltd | Real estate | 2024 |
| 375 Ltd | Wholesale & retail | 2026 |
| 3D Construction Services Ltd | Construction | 2024 |
| 42 Magdalen Road Management Limited | Households | 2002 |
| 4U Brands Ltd | Administrative & support | 2017 |
| 539 Creative Limited | Professional & scientific | 2014 |
| 74 Hampton Park Redland Bristol Management Company Limited | Households | 1987 |
| 77 Hendham Road Limited | Hospitality | 1982 |
| A & R Blatchford Limited | Construction | 2009 |
| A M Lane Limited | Professional & scientific | 2005 |
| A W Services Devon Limited | Manufacturing | 2017 |
| A&M Coatings (SW) Ltd | Wholesale & retail | 2022 |
| A&M Surveying Ltd | Professional & scientific | 2022 |
| A&S Signatures Ltd | Information & communication | 2024 |
| A.C.M. Security Services Limited | Administrative & support | 1985 |
| A.J.P. Services Limited | Construction | 2007 |
| A.M.S Trans CT Ltd | Transport & logistics | 2025 |
| A.N.P. Properties Limited | Construction | 2003 |
| ABC Day Nursery (Cullompton) Limited | Health & social care | 2011 |
| Abgkwi Ltd | Wholesale & retail | 2022 |
| Absolutely Brilliant Cleaning LLP | | 2023 |
| Abwi Ltd | Wholesale & retail | 2022 |
| Accounting Elevation Limited | Professional & scientific | 2020 |
| Ace Consulting South West Ltd | Administrative & support | 2014 |
| Active Items Ltd | Wholesale & retail | 2000 |
| Activspan Ltd | Wholesale & retail | 2023 |
| Aday Accountancy Services Limited | Professional & scientific | 2024 |
| Adition UK Ltd | Information & communication | 2014 |
| Adjusted Customs Limited | Manufacturing | 2017 |
| Adopstar Ltd | Information & communication | 2010 |
| Advertising IQ Ltd | Professional & scientific | 2018 |
| Aelfryth Holdings Ltd | Construction | 2023 |
| Aelfryth Investments Ltd | Construction | 2021 |
| Aelfryth Land & Property Ltd | Construction | 2021 |
| Aeon Services Ltd | Information & communication | 2000 |
| Aequum Surveying and Engineering Limited | Professional & scientific | 2020 |
| Aerovision Drone Media Ltd | Professional & scientific | 2025 |
| Aerstream Limited | Manufacturing | 2023 |
| Afribox Ltd | Manufacturing | 2018 |
| Agilexe Limited | Information & communication | 2018 |
| Agilexe Technologies Limited | Information & communication | 2024 |
| Agri Crop Services South West Limited | Agriculture & fishing | 2018 |
| Aiir Roofing Solutions Limited | Construction | 2017 |
| Airo Properties Limited | Real estate | 2022 |
| AJ Roberts Carpentry Limited | Construction | 2012 |
| AJB Ventures Ltd | Real estate | 2019 |
| AK Pharma Ltd | Health & social care | 2010 |
| Alasdair Cameron Limited | Administrative & support | 2003 |
| Albany Planning Limited | Professional & scientific | 2020 |
| Alexander Ventures Ltd | Professional & scientific | 2024 |
| ALL Terrain Medical Ltd | Health & social care | 2018 |
| Alter Terra Ltd | Real estate | 2026 |
| Alvear Consulting Ltd | Professional & scientific | 2008 |
| AM Transport and Logistics Ltd | Transport & logistics | 2024 |
| Amasone Logistics Limited | Transport & logistics | 2021 |
| Amazing Amenities Limited | Real estate | 2002 |
| Ambassador Protection Dogs Limited | Other services | 2025 |
| Amber Zebra Productions Ltd | Information & communication | 2025 |
| Amiryck Holdings Ltd | Other services | 2019 |
| Anchor Scaffolding Ltd | Construction | 2025 |
| Angelfire Pyrotechnics UK Ltd | Arts & recreation | 2009 |
| Animosity Ltd | Wholesale & retail | 2025 |
| Anna Marshall Consultancy Ltd | Information & communication | 2023 |
| Apex Environmental Consultants Limited | Professional & scientific | 2023 |
| Apex Race Centre Ltd | Arts & recreation | 2023 |
| Aplin Property Ltd | Administrative & support | 2021 |
| Aplin Smile Limited | Health & social care | 2013 |
| Arcken Ltd | Construction | 2015 |
| Arrested Developments Limited | Construction | 2025 |
| Artbored Ltd | Information & communication | 2026 |
| Artemis Aviation Limited | Extraterritorial | 2024 |
| Artemis Aviation Safety Limited | Transport & logistics | 2021 |
| Artisan EGG Ltd | Agriculture & fishing | 2025 |
| AS76 Property Ltd | Real estate | 2024 |
| Ascend Coaching South West Limited | Arts & recreation | 2025 |
| ASH Comms Ltd | Information & communication | 2022 |
| Ashbrook Engineering Limited | Manufacturing | 2013 |
| Ashculme Limited | Administrative & support | 2011 |
| Ashillcourtyard Management Company Limited | Extraterritorial | 1998 |
| Ashok & Babali Ltd | Manufacturing | 2019 |
| Ashok and Babali, Stroud Ltd | Wholesale & retail | 2023 |
| Ashok and Babali,Good Karma Ltd | Wholesale & retail | 2021 |
| Ashwood Products Limited | Manufacturing | 2011 |
| Association of Anaesthesia Associates | Other services | 2008 |
| Assured Farm Solutions Limited | Professional & scientific | 2023 |
| ATB Electrical Services (2016) Ltd | Construction | 2016 |
| Atlas & RUE Ltd | Professional & scientific | 2025 |
| Atlas Automation Ltd | Professional & scientific | 2024 |
| Auburn Rascal Ltd | Information & communication | 2020 |
| Austere Environment Solutions Ltd | Health & social care | 2025 |
| Australia Butcher Shop Online Limited | Wholesale & retail | 2020 |
| Axminster Beds Limited | Wholesale & retail | 2023 |
| B K Electrical (SW) Limited | Construction | 2015 |
| B P a Productions Ltd | Information & communication | 2016 |
| B&D Developments Ltd | Real estate | 2026 |
| BA Greene Properties Limited | Real estate | 2025 |
| Baby Bear Creatives Limited | Arts & recreation | 2024 |