| Beaumont Road Property Ltd | Real estate | 2023 |
| Beauty Code Training and Aesthetics Ltd | Education | 2018 |
| Beauty Inc Ltd | Other services | 2021 |
| Beautymark Studio Limited | Other services | 2025 |
| Beaverford Limited | Construction | 1985 |
| BEC Electricians Plymouth Ltd | Construction | 2020 |
| Becky Jade Fitness Ltd | Arts & recreation | 2021 |
| BED (SW) Limited | Real estate | 2007 |
| Bedford Court (Tavistock) Management Company Limited | Households | 2005 |
| Bedford Court Management Company Limited | Other services | 2002 |
| Bedford Properties (SW) Limited | Real estate | 2017 |
| Bedouin Campers Ltd | Administrative & support | 2014 |
| Beds & More (SW) Ltd | Wholesale & retail | 2025 |
| BEE Verdant Limited | Agriculture & fishing | 2025 |
| Beechwood Communications Limited | Information & communication | 1994 |
| Beefbook Limited | Agriculture & fishing | 2019 |
| Beehive Cleaning Services Ltd | Administrative & support | 2026 |
| Beehive Homes (Southwest) Ltd | Financial services | 2020 |
| Beesure Quality Roofing Limited | Construction | 2016 |
| Beforesix Ltd | Wholesale & retail | 2025 |
| Beggars Banquet Ltd | Hospitality | 2011 |
| Beith Consultancy Limited | Information & communication | 2024 |
| BEL Lane Developments Limited | Real estate | 2017 |
| Belgrave Commercials Limited | Wholesale & retail | 1997 |
| Believex Ltd | Information & communication | 2021 |
| Belinarts Collaboration CIC | Education | 2024 |
| Bell Enterprises Limited | Real estate | 2001 |
| Bella Vita Properties Ltd | Real estate | 2007 |
| Bellaroma Investments Ltd | Financial services | 2020 |
| Bellever Maintenance Limited | Real estate | 2011 |
| Bellingham Properties (SW) Ltd | Real estate | 2017 |
| Bellissima Leek Limited | Other services | 2019 |
| Bello Fandango Ltd | Hospitality | 2026 |
| Belluno Bar & Grill Limited | Hospitality | 2019 |
| Belmont Lansdown Limited | Information & communication | 2022 |
| Belmont Villas Management Company Limited | Households | 2009 |
| Belstone Dairy Company Limited | Wholesale & retail | 2024 |
| Belstone FOX (Project Management) Limited | Professional & scientific | 2008 |
| Belstone FOX Limited | Real estate | 2003 |
| Belyse Ltd | Construction | 2019 |
| BEN Leach Consultancy Ltd | Other services | 2017 |
| BEN RAY Window Cleaning Services Ltd | Administrative & support | 2022 |
| Ben's Plaice Plymstock Ltd | Hospitality | 2025 |
| Benbow Street Management Company Limited | Real estate | 2006 |
| Bengal Flavour Limited | Hospitality | 2019 |
| Bentec Limited | Professional & scientific | 2014 |
| Benzyl Properties Ltd | Construction | 2015 |
| Bergun Limited | Real estate | 2025 |
| Beriot Properties Ltd | Real estate | 2025 |
| Berkeley Management Ltd | Financial services | 2024 |
| Berkeley Psychiatrists Ltd | Health & social care | 2020 |
| Berkeley Square (19 Princess Street, Plymouth) Management Company Limited | Households | 2004 |
| Berkeley Square Plymouth Limited | Households | 2012 |
| Berkley Kemp Limited | Wholesale & retail | 1995 |
| Berlman Limited | Households | 1988 |
| Beroshki Ltd | Wholesale & retail | 2020 |
| Berry Barton Management Company Limited | Real estate | 2004 |
| Berry Investments Holdings Limited | Financial services | 2023 |
| Bersey Agricultural Systems Limited | | 1979 |
| Bespoke Aesthetics Devon Ltd | Other services | 2025 |
| Bespoke Care and Support Services Plymouth Ltd | Public administration | 2020 |
| Bespoke Client Services Limited | Health & social care | 2016 |
| Bespoke Engaging Education Services Limited | Education | 2013 |
| Bespoke Event Management Europe Ltd | Other services | 2024 |
| Bespoke Homes SW Limited | Construction | 2016 |
| Bespoke Urology Ltd | Health & social care | 2021 |
| Bespoke-Homes Design & Build Ltd | Construction | 2024 |
| Best 3000 Holdings Ltd | Professional & scientific | 2020 |
| Best Accountancy Services (Plymouth) Ltd | Professional & scientific | 2008 |
| Best Biits Ltd | Wholesale & retail | 2025 |
| Best Farms Partnership Limited | Agriculture & fishing | 2013 |
| Best Food 4 ALL Ltd | Hospitality | 2022 |
| Best LET Ltd | Real estate | 2022 |
| Best Pave Ltd | Other services | 2013 |
| Bestride Ltd. | Transport & logistics | 2020 |
| Bestwaycarehome Ltd | Health & social care | 2025 |
| Beta Salon Ltd. | Other services | 2018 |
| Bethany Court (Cornwall) Management Company Limited | Households | 2008 |
| Bethany House Care Home (Plymouth) Limited | Health & social care | 2023 |
| Better Bookings Ltd | Administrative & support | 2017 |
| Better by FAR Foods Limited | Hospitality | 2025 |
| Better Insulation Solutions Limited | Construction | 2024 |
| Beverston Accountants Ltd | Professional & scientific | 2017 |
| Bevprop Limited | Real estate | 2024 |
| BEW Properties (Plymouth) Limited | Real estate | 2012 |
| Bewar Car Wash Ltd | Administrative & support | 2019 |
| Bewitched Limited | Professional & scientific | 2000 |
| Bexhill House Limited | Households | 2016 |
| Beyond Face Community Interest Company | Arts & recreation | 2016 |
| Beyond Limits (Plymouth) Ltd | Health & social care | 2012 |
| Beyondeventsuk Limited | Arts & recreation | 2017 |
| Beyourbest Mentoring Ltd | Education | 2022 |
| Bharatfare Travel and Technologies Ltd | Information & communication | 2025 |
| Bhava Retails UK Ltd | Wholesale & retail | 2019 |
| Bhbh Limited | Professional & scientific | 2011 |
| BHK SW Limited | Financial services | 2026 |
| Bhutan Devi Limited | Hospitality | 2017 |
| Bialy Orzel Ltd | Wholesale & retail | 2019 |
| Biarte Ltd | Wholesale & retail | 2025 |
| Bideford West Ltd | Construction | 2006 |