| Bespoke Dreams Boutique Ltd | Wholesale & retail | 2026 |
| Bespokesfood Ltd | Professional & scientific | 2023 |
| Bessellfield Property Limited | Real estate | 2025 |
| Beth’S Beauty Lounge Ltd | Other services | 2025 |
| Bicton Drive R.M.C. Limited | Real estate | 2017 |
| Bicton Villas Management Limited | Households | 2016 |
| Big Bear Burgers Ltd | Hospitality | 2025 |
| Bike Works Co. Ltd | Wholesale & retail | 2016 |
| Biomass Engineers Ltd | Manufacturing | 2022 |
| BK Appliance Ltd | Other services | 2021 |
| BKS (Made to Measure) Limited | Manufacturing | 2003 |
| Black Pines Group Limited | Construction | 2023 |
| Blackmore GAS Limited | Manufacturing | 2014 |
| Blair Group Limited | Professional & scientific | 2019 |
| Blandford Welding and Fabrication Limited | Professional & scientific | 2023 |
| Block a Altamira Residents Association Limited | Households | 1988 |
| Block B Altamira Residents Association Limited | Households | 1988 |
| Block C Altamira Residents Association Limited | Households | 1988 |
| Block D Altamira Residents Association Limited | Households | 1988 |
| Block E Altamira Residents Association Limited | Households | 1988 |
| Block F Altamira Residents Association Limited | Households | 1988 |
| Blue Cedar Court (Exmouth) Limited | Households | 2012 |
| Blue Dragon Limited | Hospitality | 2019 |
| Blue Marble Environmental Partnerships Ltd | Professional & scientific | 2019 |
| Blue Ocean Take Away Food Limited | Hospitality | 2025 |
| Blue Sails Psychology Limited | Health & social care | 2020 |
| Blue Sky (Devon) Limited | Professional & scientific | 2020 |
| Blue Zeal SW Ltd | Extraterritorial | 2023 |
| BNM Design Limited | Wholesale & retail | 2006 |
| Boaden Construction Limited | Construction | 2024 |
| Bodywise Gym Ltd | Arts & recreation | 2024 |
| Boil the Ocean Limited | Professional & scientific | 2019 |
| Bolton Investigations Limited | Administrative & support | 2019 |
| Bond Lane Farm Limited | Agriculture & fishing | 1965 |
| Boomfa Ltd | Manufacturing | 2023 |
| Booth Nineteen Ltd | Professional & scientific | 2017 |
| Botham Building Ltd | Construction | 2021 |
| Boundayiq Ltd | Professional & scientific | 2025 |
| BP Construction Limited | Construction | 2021 |
| Bradleys Estate and Block Management Limited | Real estate | 2002 |
| Bradleys Group (Holdings) Limited | Real estate | 2019 |
| Brady Property Group Limited | Real estate | 2023 |
| Braunton Childcare Ltd | Health & social care | 2021 |
| Bridge the GAP (Harris) Ltd | Health & social care | 2010 |
| Bridge View LL10 Ltd | Real estate | 2018 |
| Bridge View SH LL10 Ltd | Real estate | 2018 |
| Bridge View TL8 Ltd | Real estate | 2018 |
| Bridge View TR5 Ltd | Real estate | 2018 |
| Bright Bridge Enabling SW CIC | Education | 2025 |
| Brighter Beginnings Properties Limited | Real estate | 2026 |
| Broadmead (23-29) RTM Company Limited | Households | 2019 |
| Broadmead (31-45) RTM Company Limited | Households | 2019 |
| Broadmead (7-21) RTM Company Limited | Households | 2019 |
| Brooklyn Surgical Ltd | Health & social care | 2026 |
| Brown Brothers Group Limited | Manufacturing | 1983 |
| Bruce Gillies Limited | Administrative & support | 2012 |
| Buddha Events Ltd | Hospitality | 2023 |
| Build One Devon Limited | Construction | 2018 |
| Building Compliance (SW) Ltd | Professional & scientific | 2022 |
| Building Informatics R&D LAB Limited | Professional & scientific | 2025 |
| Bull Alternative Property Limited | Real estate | 2006 |
| Bumble and BEE Limited | Hospitality | 2013 |
| Business Linked Teams Limited | Professional & scientific | 2006 |
| Busy Bees Commercial Cleaning Limited | Administrative & support | 2014 |
| Busy Bees Window Cleaning Limited | Administrative & support | 2015 |
| Busy B’S Laundrette Ltd | Other services | 2022 |
| Butcher and Charles Cumberland Road E13 Ltd | Professional & scientific | 2015 |
| Buturi Makongoro Project Limited | Education | 2009 |
| Bystock Holdings Limited | Administrative & support | 2018 |
| C & M Griffin Ltd | Hospitality | 2023 |
| C a Stone (Medical & Legal) Limited | Health & social care | 2010 |
| C Cockman Building and Bricklaying Contractors Limited | Construction | 2020 |
| C J Bridle Plumbing and Heating Ltd | Construction | 2017 |
| C&H Roofing Southwest Limited | Construction | 2025 |
| C.M.D Building Contractor Ltd | Construction | 2022 |
| C.T. Staddon (Exmouth) Limited | Professional & scientific | 1986 |
| C.T. Staddon Limited | Wholesale & retail | 1946 |
| C458IGHT Data Media Services Ltd | Information & communication | 2021 |
| Cadel Bosco Ltd | Professional & scientific | 2022 |
| Cafe @ the Car Wash Limited | Other services | 2010 |
| Cafe OTO Limited | Hospitality | 2013 |
| Caffeinated Development Ltd | Information & communication | 2023 |
| Cairdeas Ltd | Arts & recreation | 2025 |
| Cameron Jones Financial Management Ltd | Financial services | 2011 |
| Capital Court Property Management Limited | Real estate | 2008 |
| Car and Commercial (Devon) Ltd | Wholesale & retail | 2025 |
| Car Park Markings Ltd | Construction | 2014 |
| Caramel Clothing Limited | Wholesale & retail | 2007 |
| Cardwiser Limited | Wholesale & retail | 2018 |
| Care and Connect Daycare Centre Limited | Health & social care | 2025 |
| Care Fusion Consulting LLP | | 2025 |
| Carers Wellbeing Collective CIC | Health & social care | 2025 |
| Carl J Humphries Dental Ceramics Ltd | Health & social care | 2013 |
| Carpenter in Ottery Ltd | Construction | 2018 |
| Carpet King Commercial Limited | Wholesale & retail | 2016 |
| Carpet King Fitting Services Limited | Construction | 2016 |
| Carpet King Limited | Wholesale & retail | 2016 |
| Carpexe Ltd | Wholesale & retail | 2020 |
| Carr & Jones Ltd | Real estate | 2023 |
| Cartridges Direct UK Ltd | Wholesale & retail | 2009 |