| BFP Holdings Limited | Professional & scientific | 2008 |
| BG Group Torbay Ltd | Real estate | 2025 |
| BIB2 Training Limited | Administrative & support | 2022 |
| Big Baps Ltd | Hospitality | 2025 |
| Big Door Broadcast Ltd | Information & communication | 2020 |
| Bigflip Limited | Administrative & support | 2003 |
| Bigfoot Arts South West Limited | Education | 2018 |
| Birchwood House Paignton Ltd | Hospitality | 2012 |
| Birds Estates Ltd | Real estate | 2024 |
| Black Cove Brewing Company Ltd | Wholesale & retail | 2019 |
| Black Ivory Entertainment Ltd | Professional & scientific | 2026 |
| Blackler Bathrooms Ltd | Construction | 2024 |
| Blackmoor Grange Gillingham Management Company (Number 2) Limited | Households | 2005 |
| Blackmoor Grange Gillingham Management Company (Number 3) Limited | Households | 2005 |
| Blair Atholl Management Company Limited | Hospitality | 2007 |
| Blenheim (Bovey) Management Company Limited | Households | 2019 |
| Blink Media Company SW Ltd | Information & communication | 2024 |
| BLM Group of Ltd | Construction | 2021 |
| Bloom Ultrasound Ltd | Health & social care | 2025 |
| Blucrest Limited | Real estate | 2005 |
| Blue Atlas Property Limited | Real estate | 2026 |
| Blue Nugget Ltd | Wholesale & retail | 2024 |
| Blue Riband Tax South Ltd | Professional & scientific | 2013 |
| Blue Sky 20 20 Ltd | Health & social care | 2017 |
| Blueball Freehold Company Limited | Households | 2024 |
| Blueball Management Co. Ltd | Households | 2023 |
| BMG89 Ltd | Information & communication | 2024 |
| Bobbies Builders Limited | Construction | 2017 |
| Booholman Investments Ltd | Financial services | 2020 |
| Boser Bass Events Ltd | Administrative & support | 2023 |
| Boss Cleaning Services Limited | Administrative & support | 2019 |
| Bosskin Limited | Transport & logistics | 2025 |
| Bossladygroup Ltd | Wholesale & retail | 2025 |
| Bosworths Kitchen Ltd | Hospitality | 2026 |
| Bow-Rain Construction Limited | Construction | 1964 |
| Bowen Electrical Services Ltd | Manufacturing | 2011 |
| Bower Marine Ltd | Manufacturing | 2019 |
| Box 2 Box Competitions Ltd | Arts & recreation | 2026 |
| BPB Signalling Ltd | Professional & scientific | 2024 |
| Bradley Building and Carpentry Limited | Construction | 2019 |
| Brays Lane Management Limited | Real estate | 2017 |
| Breakwater View Limited | Hospitality | 2022 |
| Briard & Hutchings Electrical, Plumbing & Heating Solutions Ltd | Manufacturing | 2011 |
| Brick Family Connect Limited | Health & social care | 2025 |
| Brights (Electrical Services) Limited | Construction | 2001 |
| Brightway Days CIC | Health & social care | 2026 |
| Britannia Engineering UK Limited | Manufacturing | 2020 |
| Briteside Cleaning Services Limited | Other services | 2005 |
| Brixham Garage Limited | Wholesale & retail | 2007 |
| Brixham Minibus Taxis Limited | Transport & logistics | 2007 |
| Brixham Seafood Limited | Wholesale & retail | 2023 |
| Brixham Taxis Ltd | Administrative & support | 2011 |
| Broadband-Testing Ltd | Administrative & support | 2019 |
| Broadsands Management Limited | Households | 2016 |
| Brockenhurst RTM Company Limited | Households | 2008 |
| Brooksbank Properties (SW) Ltd | Real estate | 2026 |
| Brotech Plumbing & Heating Limited | Construction | 2021 |
| Brow Boutique & Training Academy Ltd | Education | 2022 |
| Brown & Bright Holdings Limited | Professional & scientific | 2017 |
| Btrotman Ltd | Financial services | 2025 |
| Bubble Cleaning Limited | Professional & scientific | 2010 |
| Buck's Agricultural Project Management Ltd | Administrative & support | 2024 |
| Buckingham Dance Studios Ltd | Arts & recreation | 2023 |
| Budleigh Salterton Flats Management Company Limited | Administrative & support | 2003 |
| Builders Inc'D Ltd | Construction | 2021 |
| Builders Market Ltd | Wholesale & retail | 2023 |
| Built Projects Ltd | Construction | 2025 |
| Bullcreek Ltd | Hospitality | 2018 |
| Bundled Gifts Ltd | Wholesale & retail | 2023 |
| Bungle Limited | Wholesale & retail | 2010 |
| Burnside Plumbing & Heating Ltd | Construction | 2025 |
| Burrows Financial Limited | Financial services | 2021 |
| Business Partners Limited | Information & communication | 1995 |
| Business That Rocks Ltd | Wholesale & retail | 2022 |
| Butler Services Ltd | Manufacturing | 2021 |
| Bvec Plumbing and Heating Ltd | Construction | 2022 |
| C & R Food and Catering Ltd | Hospitality | 2025 |
| C Wootton Properties Limited | Real estate | 2026 |
| C.E.Lettings Ltd | Real estate | 2025 |
| C.J.M Holding Limited | Real estate | 2017 |
| C.J.P Marine Limited | Other services | 2019 |
| Cabbage Tree Studio CIC | Arts & recreation | 2024 |
| Cabs and Confetti Ltd | Transport & logistics | 2026 |
| Caesar Software Consultancy Ltd | Information & communication | 2023 |
| Caffe Amor London Ltd | Wholesale & retail | 2013 |
| Caffe Cosi Ltd | Hospitality | 2014 |
| Caffe Tutto (Paignton) Limited | Hospitality | 2022 |
| Callguard AI Ltd | Information & communication | 2026 |
| Calm Harbour Care Ltd | Health & social care | 2025 |
| Calverley Management Limited | Professional & scientific | 2015 |
| Camouflage Store Limited | Wholesale & retail | 2026 |
| Camway Limited | Information & communication | 2005 |
| Canonsleigh Flat Management (Totnes Road) Limited | Households | 2007 |
| Canopy Clan Care Ltd | Public administration | 2025 |
| Canopy Clan Catering Ltd | Hospitality | 2025 |
| Cantina Limited | Hospitality | 2023 |
| Capella Marine Services Ltd | Other services | 2025 |
| Capitalrange Limited | Hospitality | 1979 |
| Capstick Capital Investments Ltd | Construction | 2024 |
| Carpetwise Totnes Limited | Wholesale & retail | 2023 |