| BCQ Solutions Limited | Manufacturing | 2023 |
| BCR (Holdings) Limited | Financial services | 2013 |
| BCR Associates Limited | Extraterritorial | 2009 |
| BCS Consultancy Ltd | Professional & scientific | 2023 |
| BCS Sands Ltd | Financial services | 2014 |
| BD Contractors Ltd | Construction | 2021 |
| BE Aesthetics Clinics Limited | Other services | 2022 |
| Beach and Network Ltd | Information & communication | 2025 |
| Beacon Alternative School CIC | Education | 2025 |
| Beacon Heath Ltd | Real estate | 2026 |
| Beacon Heights (Northey Road) Management Company Limited | Households | 2011 |
| Beacon Psychology Ltd | Health & social care | 2021 |
| Beaconcarr Apartments Limited | Real estate | 2020 |
| Beaconcarr Ltd | Real estate | 2016 |
| Beacone Heath Ltd | Real estate | 2026 |
| Beacons Telecom Ltd | Construction | 2019 |
| Beady EYE Investments Limited | Real estate | 2018 |
| Beam Connectivity Limited | Professional & scientific | 2020 |
| BEAR3DPRINTS Ltd | Wholesale & retail | 2026 |
| Beard & Co Ltd | Professional & scientific | 2025 |
| Bearded Feller Tree Services Limited | Agriculture & fishing | 2017 |
| Bearne's Limited | Financial services | 1991 |
| Bearnes Hampton & Littlewood Limited | Other services | 1999 |
| Bearwolf Ltd | Information & communication | 2009 |
| Beasoft Limited | Information & communication | 2016 |
| Beat Construction Limited | Construction | 2015 |
| Beat Your Anxiety Ltd. | Education | 2020 |
| Beat-To-Quarters Limited | Professional & scientific | 2015 |
| Beau Visage Ltd | Other services | 2014 |
| Beaulaw Limited | Construction | 2005 |
| Beaumont & Bear Ltd | Wholesale & retail | 2019 |
| Beauty Within Sidmouth Limited | Other services | 2013 |
| Beckworth Financial Services Limited | Financial services | 2001 |
| Becon Heath Ltd | Real estate | 2025 |
| Bedborough Solar Farm Limited | Energy | 2014 |
| Bedford Park Plymouth Ltd | Real estate | 2023 |
| Bedrock Trustees Limited | Financial services | 2025 |
| Bedstone Property Group Ltd | Real estate | 2026 |
| Bedun Limited | Wholesale & retail | 2012 |
| BEE Yoga Ltd | Education | 2025 |
| Beech Copse (Exeter) Management Company Limited | Households | 2019 |
| Beechdown Developments Ltd | Financial services | 2026 |
| Beechey Property Ltd | Real estate | 2013 |
| Beechwood House Limited | Health & social care | 2002 |
| Beechwoodrcg Ltd | Health & social care | 2021 |
| Beer Construction Limited | Construction | 2002 |
| Beer Factory and Kitchen Ltd | Hospitality | 2018 |
| Beerstone Financial Services Ltd | Administrative & support | 2017 |
| Beerstone Specialist Finance Ltd | Other services | 2023 |
| Beevee & KDA Property Limited | Real estate | 2020 |
| Beevee and AR Ventures Ltd | Real estate | 2020 |
| Beevee Group Ltd | Financial services | 2021 |
| Beevee Property Solutions Ltd | Real estate | 2018 |
| Beevive Ltd | Wholesale & retail | 2019 |
| Behavioural Innovation Group Limited | Information & communication | 2024 |
| Beijing Beijing (Exeter) Limited | Hospitality | 2021 |
| BEK Precision Surgery Limited | Health & social care | 2025 |
| BEL Etage Ltd. | Real estate | 2008 |
| Belfield Culmstock LLP | | 2024 |
| Belfield Developments Limited | Construction | 2015 |
| Belfield Folly Gate LLP | | 2023 |
| Belfield Howton CSB LLP | | 2024 |
| Belfield Investments Project 9 Limited | Construction | 2023 |
| Belfield Ipplepen LLP | | 2021 |
| Belfield Kingskerswell LLP | | 2018 |
| Belfield Sandford Investment Ltd | Construction | 2022 |
| Belfield Sandford LLP | | 2021 |
| Belfield Uffculme LLP | | 2025 |
| Belga Development Management Limited | Construction | 2001 |
| Belhill Properties Limited | Real estate | 2005 |
| Believe in Limited | Professional & scientific | 2007 |
| Belinda Pierce Quality Solutions Limited | Professional & scientific | 2011 |
| Bell House (Exeter) Management Company Ltd | Households | 2024 |
| Bell Joinery Limited | Construction | 2010 |
| Bella Pizza (SW) Ltd | Hospitality | 2019 |
| Bellabode Ltd | Real estate | 2022 |
| Bellman Plant Limited | Construction | 2016 |
| Belluno Farnham Ltd | Hospitality | 2025 |
| Belluno Italian & Bar Limited | Hospitality | 2023 |
| Belly Timber Limited | Wholesale & retail | 2011 |
| Belmont Exeter | Other services | 2017 |
| Belmont Ltd | Real estate | 2020 |
| Belmont Mews (Exeter) Freehold Limited | Households | 2019 |
| Belmontrees Ltd | Arts & recreation | 2020 |
| Belowground Contracts Ltd | Construction | 2013 |
| Belowground Ltd | Construction | 2006 |
| Belvedere Court Dawlish RTM Company Limited | Households | 2005 |
| Belvedere Court Management Company Limited | Households | 2006 |
| Belvedere Park Estate Management Company Limited | Households | 1991 |
| Belvedere Property Maintenance Ltd | Construction | 2013 |
| BEM Group Limited | Financial services | 2020 |
| BEN Peyton-Jones Limited | Health & social care | 2018 |
| BEN Shipton Ltd. | Manufacturing | 2016 |
| BEN Whitcombe Limited | Wholesale & retail | 2010 |
| Benchmark (Exeter) Limited | Professional & scientific | 2002 |
| Benchmark Debt Solutions Limited | Information & communication | 2023 |
| Bendarroch Holdings Ltd | Real estate | 2016 |
| Bendarroch Properties Ltd | Real estate | 2015 |
| Benedicts Bridge Garage Limited | Wholesale & retail | 2013 |
| Benefiz Limited | Financial services | 2015 |