| Binagold Limited | Mining & quarrying | 2005 |
| Biodiversity Bank Ltd | Administrative & support | 2011 |
| Biosysco Holdings Limited | Health & social care | 2003 |
| Biosysco Ltd | Professional & scientific | 2010 |
| Bititi Strong Women Ltd | Information & communication | 2024 |
| BK Hands on Car Wash Ltd | Other services | 2010 |
| Bkap Limited | Real estate | 2002 |
| Blackmoor Enterprises Ltd | Professional & scientific | 2016 |
| Blackwood Technology Limited | Information & communication | 2024 |
| Block Management Surrey Limited | Households | 2026 |
| Blossom Fields Residential Care Ltd | Health & social care | 2014 |
| Blue Door Print Ltd | Manufacturing | 2018 |
| Blue Ibex Limited | Information & communication | 2000 |
| Bluefields Wealth Limited | Financial services | 2017 |
| Bluesky Exec Ltd | Construction | 2025 |
| Blunova Digital Ltd | Information & communication | 2026 |
| BM Car Sales Ltd | Wholesale & retail | 2025 |
| BMS Surrey Limited | Wholesale & retail | 2018 |
| Bo&Co Ltd | Professional & scientific | 2018 |
| Boavida & Sons Ltd | Professional & scientific | 2023 |
| Bobjeff Productions Limited | Information & communication | 2022 |
| Bobsin Bookkeeping Ltd | Professional & scientific | 2026 |
| Bola NA Lesa Ltd | Arts & recreation | 2021 |
| Bolamo Ltd | Professional & scientific | 2025 |
| Bond & Associates Commercial Services Limited | Financial services | 2014 |
| Bond & Associates Financial Services Limited | Financial services | 2013 |
| Bonkers Creative Ltd | Professional & scientific | 2019 |
| Books on Singing Limited | Information & communication | 2013 |
| Bordering Ltd | Manufacturing | 2024 |
| Bosence Associates Limited | Professional & scientific | 2020 |
| Both Sides NOW Limited | Information & communication | 1997 |
| Bowen-Perkins Group Ltd | Professional & scientific | 2026 |
| Boylan Consultancy Ltd | Wholesale & retail | 2021 |
| Boynton Cars Ltd | Transport & logistics | 2022 |
| Bramble Technology Group Limited | Information & communication | 2021 |
| Brand New AGE Films Limited | Arts & recreation | 2020 |
| Bravo Oaks Limited | Administrative & support | 2017 |
| Breathe & BE Limited | Education | 2023 |
| Brick & IVY Property Limited | Real estate | 2024 |
| Bridgman Developments Limited | Financial services | 2013 |
| Bright Scope Limited | Professional & scientific | 2020 |
| Brit Will Writers Limited | Professional & scientific | 2012 |
| Brix Property Limited | Real estate | 2009 |
| Broadford Barn Ltd | Real estate | 2019 |
| Bromyard House (Car Park) Limited | Professional & scientific | 2004 |
| Bromyard House (Freehold) Limited | Professional & scientific | 2004 |
| Bromyard House (North) Limited | Extraterritorial | 2006 |
| Bromyard House Limited | Professional & scientific | 2004 |
| Brooke Exportare UK Limited | Administrative & support | 2025 |
| Brooke Investment Holdings UK Limited | Administrative & support | 2025 |
| Brookfield Place (Cobham) Management Company Limited | Households | 2003 |
| Bros Property Development Ltd | Construction | 2010 |
| Bros Property Partners Ltd | Real estate | 2016 |
| Brovary Limited | Information & communication | 2013 |
| Brown Ginger and Grey Limited | Financial services | 2026 |
| Bruce's Pet Care Ltd | Professional & scientific | 2011 |
| BSC Holdings Ltd | Households | 2024 |
| Bspok IT Solutions Limited | Information & communication | 2023 |
| Bubbikins Limited | Wholesale & retail | 2023 |
| Building & Landscaping Surrey Limited | Construction | 2024 |
| Building People CIC | Information & communication | 2017 |
| Built Environment Schools Trust Ltd | Education | 1987 |
| Bunny and Bean Properties Limited | Real estate | 2024 |
| Bunrannoch Limited | Hospitality | 2007 |
| Burleigh Park Freehold Apartments Ltd | Households | 1981 |
| Burrowes Promotions Limited | Arts & recreation | 2025 |
| Bushfire Digital Media Limited | Information & communication | 2008 |
| Bushfire Properties Limited | Construction | 2012 |
| Business Curve Limited | Professional & scientific | 2014 |
| Businesswize Limited | Professional & scientific | 2008 |
| Butterfly Children Limited | Arts & recreation | 1987 |
| BWW Management Limited | Construction | 2005 |
| Byron Residential Property Ltd | Professional & scientific | 2026 |
| Byte IT Systems Limited | Information & communication | 1998 |
| C R Pearce Limited | Financial services | 2013 |
| C.W.Dixey & SON Limited | Financial services | 1930 |
| Caadio Sports Limited | Manufacturing | 2021 |
| Caddiematch Ltd | Arts & recreation | 2025 |
| Caffe Capital Limited | Hospitality | 2010 |
| Caldarion Advisory Ltd | Professional & scientific | 2025 |
| Camabelu Limited | Professional & scientific | 2012 |
| Camera-Stylo Limited | Arts & recreation | 2017 |
| Cameraworx Limited | Administrative & support | 2016 |
| Camille Sport Ltd | Administrative & support | 2012 |
| Canning Street Properties Limited | Real estate | 2010 |
| Caoba Limited | Wholesale & retail | 2002 |
| Capes Plumbing Limited | Construction | 2022 |
| Caplinx Partners Ltd | Professional & scientific | 2023 |
| Car Electrical Services Limited | Wholesale & retail | 2026 |
| Caramel Talent Limited | Administrative & support | 2016 |
| Care & Co Holdings Limited | Hospitality | 2025 |
| Caring for YOU Professionals Limited | Health & social care | 2023 |
| Carlton Paving & Landscapes Ltd | Construction | 2026 |
| Carly Rogers Flowers Limited | Wholesale & retail | 2006 |
| Carzel Limited | Manufacturing | 2017 |
| Casa Gaia Spirits Ltd | Wholesale & retail | 2025 |
| Casale Investments Limited | Professional & scientific | 2023 |
| Casland Limited | Professional & scientific | 2004 |
| Castle Court Putney Wharf Limited | Extraterritorial | 2002 |
| Castletown Properties Limited | Real estate | 2017 |