| 1 Brunswick Street Management Company Ltd | Households | 2015 |
| 1 Southview Freehold Ltd | Real estate | 2026 |
| 1-4 Polmor Mews Management Company Limited | Households | 2021 |
| 1-ZERO-1 Computer Solutions Limited | Information & communication | 2012 |
| 11 Town Hall Place Limited | Construction | 2022 |
| 12 Northumberland Place (Teignmouth) Limited | Real estate | 2024 |
| 12A Barnpark Terrace RTM Company Limited | Households | 2025 |
| 14 Orchard Gardens Management Ltd | Households | 2018 |
| 17 Orchard Gardens Management Company Limited | Households | 2004 |
| 19 Dawlish Street Management Company Limited | Households | 2006 |
| 1ST Stop JAS Ltd | Wholesale & retail | 2024 |
| 28 Keyberry Road Management Company Limited | Households | 2024 |
| 30:30 Vision Limited | Manufacturing | 2019 |
| 3MGSM UK Ltd | Wholesale & retail | 2025 |
| 5 Barnpark Terrace Limited | Households | 2018 |
| 5 Upper East Hayes Bath Limited | Administrative & support | 2005 |
| 6 Orchard Gardens RTM Company Limited | Households | 2021 |
| 6 the Square Chudleigh Management Limited | Real estate | 2008 |
| 751 Earth Ltd | Professional & scientific | 2024 |
| 9 Powderham Terrace Management Company Limited | Professional & scientific | 2000 |
| A & E Solutions SW Limited | Professional & scientific | 2023 |
| A & KC Holdings Limited | Health & social care | 2021 |
| A JOB Coach Ltd | Other services | 2025 |
| A Radford Construction Ltd | Construction | 2003 |
| A. Burnham Carpentry Ltd | Construction | 2003 |
| A3 Education Ltd | Education | 2021 |
| A3 Online Ltd | Information & communication | 2021 |
| Abbarrel Limited | Real estate | 1984 |
| Abbey Refreshments Ltd | Wholesale & retail | 2017 |
| Abbeyfield Apartments Management Co Ltd | Households | 2016 |
| ABD DRY Lining Limited | Construction | 2013 |
| Abport Limited | Financial services | 1973 |
| Abro Enterprises Limited | Wholesale & retail | 2010 |
| ABS Theatre Limited | Arts & recreation | 2019 |
| Acoll Heating and Plumbing Ltd | Construction | 2016 |
| ACORN2OAK Devon Ltd | Professional & scientific | 2023 |
| Action on Climate in Teignbridge CIC | Public administration | 2019 |
| Adamson Employment Support Limited | Administrative & support | 2023 |
| Adanac Ices Ltd | Hospitality | 2024 |
| Adanac Properties Limited | Real estate | 2025 |
| Adcb Properties Ltd | Construction | 2020 |
| Agent Builder Academy Limited | Education | 2025 |
| Agileering Ltd | Professional & scientific | 2013 |
| AGL Accounting Limited | Professional & scientific | 2005 |
| AHG Plumbing and Heating Limited | Construction | 2013 |
| AHS Property Rentals Limited | Real estate | 2025 |
| AI Portfolio Solutions Ltd | Information & communication | 2022 |
| Ajmg Ltd. | Construction | 2002 |
| AK RC and Model Shop Ltd | Wholesale & retail | 2018 |
| Alec Kennedy (Builders) Limited | | 1987 |
| Alfs Fish & Chips Limited | Real estate | 2006 |
| Alien Developments Limited | Real estate | 2005 |
| ALL Electric (South West) Ltd | Construction | 2014 |
| ALL Steel Buildings Limited | Construction | 2007 |
| ALL Under One Woof Ltd | Wholesale & retail | 2014 |
| ALM Consulting Services Ltd | Administrative & support | 2017 |
| Almes Group Ltd | Professional & scientific | 2021 |
| Alpha Cleaning Services (South West) Limited | Administrative & support | 2008 |
| Alta Vista Management Company Limited | Households | 2019 |
| Ameliorate Direct Resources Limited | Professional & scientific | 2020 |
| Ames AI Limited | Information & communication | 2026 |
| Amto Ltd | Other services | 2017 |
| Ancile Protection Ltd | Professional & scientific | 2023 |
| Andrew Coombes Clinical Advisor Ltd | Health & social care | 2017 |
| Andrews Homes Ltd | Construction | 2012 |
| Ankagrill Limited | Hospitality | 2025 |
| Antje Derks Tutoring Ltd | Education | 2022 |
| Apollo Recruitment Solutions Ltd | Administrative & support | 2021 |
| Applegate Properties Limited | Real estate | 1978 |
| Applehall Limited | Professional & scientific | 1998 |
| AQM & T Limited | Administrative & support | 2014 |
| Aqualance Compliance Ltd | Water & waste | 2025 |
| Aquamarine Media Ltd | Professional & scientific | 2015 |
| AR Land & Planning Limited | Real estate | 2021 |
| Areca Consulting Limited | Information & communication | 2013 |
| Ariek Ltd | Real estate | 2010 |
| ARK Eco Ltd | Construction | 2012 |
| Arlo Marketing Digital Ltd | Professional & scientific | 2023 |
| Armada Constructing Futures Community Interest Company | Construction | 2026 |
| Armada Property UK Ltd | Construction | 2019 |
| Armadale House Management Company Limited | Real estate | 2006 |
| Artesian Management Limited | Administrative & support | 1995 |
| Ashley Sample PM Limited | Households | 2024 |
| Ashtons Garage Limited | Wholesale & retail | 2009 |
| ASK Utilities Limited | Construction | 2017 |
| Assidere Limited | Health & social care | 2023 |
| Assured Moves Ltd | Transport & logistics | 2023 |
| ASW Property Developers & Design Limited | Construction | 2015 |
| Atkinson Tree Services Ltd | Agriculture & fishing | 2016 |
| Atlantis Spas and Hot Tubs Limited | Manufacturing | 2026 |
| Atlas Landscaping Solutions Limited | Administrative & support | 2022 |
| Atlas Respite and Therapy Limited | Administrative & support | 2016 |
| Automotive Developments Ltd | Professional & scientific | 2018 |
| Awns Group Limited | Real estate | 2025 |
| Azul International Limited | Information & communication | 2021 |
| B H L Scaffolding Limited | Construction | 2012 |
| B Q Q S Ltd | Professional & scientific | 2007 |
| B2BXB Ltd | Professional & scientific | 2023 |
| Back Beach Records Ltd | Wholesale & retail | 2025 |
| Baileys SW Limited | Construction | 2021 |