| 25 Spencer Road RTM Company Ltd | Real estate | 2010 |
| 3/4 Fortfield Terrace Management Company Limited | Households | 1985 |
| 35/36 Blomfield Road Limited | Households | 1982 |
| 44 Westbourne Park Road (Bournemouth) Ltd. | Households | 2016 |
| 4HOMES Trustees Limited | Administrative & support | 2022 |
| 6 Westcliffe Terrace Limited | Households | 1985 |
| 6-8 Keel Close RTM Company Ltd | Real estate | 2014 |
| @School-In-Uk Ltd | Education | 2005 |
| A & R Tailift Services Limited | Wholesale & retail | 2003 |
| A & S Kingdon Limited | Construction | 2003 |
| A Howitt Property Development Ltd | Construction | 2025 |
| A Howitt Renovations Limited | Construction | 2021 |
| A. Swann and Sons Limited | Construction | 2013 |
| Abbeydale (Sidmouth) Limited | Households | 2000 |
| Abinger Engineering Consultants Limited | Professional & scientific | 2018 |
| ABR Management Ltd | Arts & recreation | 2025 |
| Acorn Property Company 2018 Limited | Real estate | 2017 |
| Adam Childs Limited | Other services | 2005 |
| Adlerwoolf & Co Limited | Professional & scientific | 2026 |
| Advantage Apartments Limited | Real estate | 1999 |
| Advantage Homes Limited | Real estate | 1999 |
| Advantage Housing Limited | Real estate | 1999 |
| Affordable Homes UK (MID Devon) Limited | Real estate | 2007 |
| Affordable Homes UK (North Devon) Limited | Real estate | 2006 |
| Affordable Homes UK Limited | Other services | 2003 |
| Affordable Housing UK (Devon) Limited | Construction | 2005 |
| Affordable Housing UK (Kernow) Limited | Construction | 2005 |
| Aglientu Ltd | Real estate | 2017 |
| Aires Media Limited | Information & communication | 2015 |
| AJ MAY Property Limited | Real estate | 2021 |
| ALL Ecology Limited | Professional & scientific | 2012 |
| ALL the Happy Things Ltd | Arts & recreation | 2025 |
| Aller Wood Limited | Agriculture & fishing | 2020 |
| Allhallows Honiton Management Company Limited(The) | Households | 1982 |
| Allkyn Ltd | Wholesale & retail | 2023 |
| Amglo Electrical Services Limited | Manufacturing | 2013 |
| Amglo Group Limited | Financial services | 2026 |
| Amglo Property Management Limited | Households | 2025 |
| AMI Estates Ltd | Real estate | 1998 |
| Ammc Limited | Households | 2001 |
| AMT Environmental Consulting Ltd | Professional & scientific | 2019 |
| ANB Holdings Limited | Real estate | 2020 |
| Angello Opportunity Caucasus Limited | Professional & scientific | 2010 |
| Anstis Court Management Company Limited | Households | 2003 |
| Antenen Consulting Limited | Professional & scientific | 1999 |
| Apex Education Consultancy Limited | Professional & scientific | 2020 |
| Applehayes Management Company Limited | Households | 1979 |
| Aqua Business Support Ltd | Administrative & support | 2026 |
| Arboreum Limited | Professional & scientific | 2015 |
| Arlo Letting Ltd | Hospitality | 2019 |
| Arom Ltd | Hospitality | 2024 |
| Arsh Holdings Ltd | Hospitality | 2020 |
| Art Gallery SW Limited | Wholesale & retail | 2017 |
| Artificial Plastic Ltd | Administrative & support | 2013 |
| Asher Homes (the Greens) Ltd | Construction | 2017 |
| Asher Homes Construction Limited | Construction | 2018 |
| Asher Homes Limited | Professional & scientific | 2004 |
| Asher Homes UK Limited | Real estate | 2007 |
| Aston Hill Cars Limited | Wholesale & retail | 2016 |
| Aston Hill Limited | Wholesale & retail | 2014 |
| Aston Hill Racing Limited | Wholesale & retail | 2016 |
| Atkx Ltd | Information & communication | 2021 |
| Atlas Scale Limited | Financial services | 2024 |
| Aurora Management Company Limited | Households | 1984 |
| Auto Trail Owners Club | Other services | 2003 |
| Autograph Estate Agents Limited | Wholesale & retail | 2015 |
| Aviation Engtech Limited | Transport & logistics | 2009 |
| Bagwells Limited | Construction | 2001 |
| Bailey Venning Associates Limited | Professional & scientific | 2016 |
| Banwell Antiques Ltd. | Wholesale & retail | 2006 |
| Barber Lettings Limited | Real estate | 2021 |
| Barbitrage Ltd | Information & communication | 2015 |
| Barton & Jones Ltd | Hospitality | 2022 |
| Baters Removals Limited | Transport & logistics | 2001 |
| Bavington Creative Ltd | Information & communication | 2019 |
| BE Frugal Limited | Wholesale & retail | 2012 |
| Bean Designed Ltd | Professional & scientific | 2013 |
| Bec-En-Hent Property Management Limited | Households | 2025 |
| Bedford Court (Sidmouth) Limited | Households | 1975 |
| Beech Close (Newton Poppleford) Management Company Limited | Households | 2019 |
| Bella Gelato Exmouth Ltd | Hospitality | 2017 |
| Belvedere Court (Sidmouth)Management Company Limited | Households | 2009 |
| Belvidere Knighton Limited | Financial services | 2014 |
| Benaiah Homes UK Ltd | Construction | 2017 |
| Benchams Limited | Agriculture & fishing | 2024 |
| Bhuk Ltd | Construction | 2017 |
| Bickwell Court Management Limited | Households | 1978 |
| Big BOY Slim Ltd | Hospitality | 2015 |
| Bison Bison Ltd | Professional & scientific | 2010 |
| Bizbraincompany Limited | Administrative & support | 2018 |
| Blackdown Accounting Ltd | Professional & scientific | 2021 |
| Blueberry Downs Management Company Limited | Households | 1976 |
| Blunts Chair Rentals Ltd | Other services | 2026 |
| Blush Permanent Makeup Ltd | Other services | 2016 |
| Boo's Inns Limited | Hospitality | 2004 |
| Boost My Mood Limited | Health & social care | 2022 |
| Boringdon Park Archway Limited | Other services | 2014 |
| Boringdon Park Limited | Other services | 1998 |
| Boughfield Management Company Limited | Real estate | 2005 |
| Bowd Court Services Limited | Households | 1992 |