| Broadwater Construction and Interiors Ltd | Construction | 2024 |
| Brook 11 Limited | Real estate | 2011 |
| Brook Green Real Estates Limited | Real estate | 2020 |
| Brookes Group Ltd | Professional & scientific | 2019 |
| Brooklands Books Limited | Information & communication | 1981 |
| Brooklands Car Sales Limited | Wholesale & retail | 1993 |
| Brooklands Cars Ltd | Wholesale & retail | 2012 |
| Brooklands Coachworks Ltd | Wholesale & retail | 2022 |
| Brooklands Enterprises Limited | Education | 1993 |
| Brooklands Motor Company Group Ltd | Wholesale & retail | 2012 |
| Brooklands Motor Racing Team Limited | Wholesale & retail | 2003 |
| Brooklands Park Residents Management Company Limited | Households | 2007 |
| Brooklands Radio C.I.C. | Information & communication | 2008 |
| Brooklands Studio Limited | Professional & scientific | 2020 |
| Brooklandsspeed Ltd | Wholesale & retail | 2020 |
| Brunel House S.A. Limited | Real estate | 2025 |
| Bryn James Lawler Decorators Limited | Construction | 2014 |
| BSG Training Ltd | Information & communication | 2011 |
| BST MSP Ltd | Administrative & support | 2022 |
| Bsvp Limited | Health & social care | 2011 |
| BTM IT Solutions Ltd | Information & communication | 2023 |
| Bucking Horse Natural Resources Ltd | Mining & quarrying | 2026 |
| Buckler Surveys & Engineering Limited | Other services | 1998 |
| Bugeater Limited | Professional & scientific | 2011 |
| Bulamerda Ltd | Real estate | 2024 |
| Bungalow Park Homes Limited | Real estate | 2024 |
| Bunn Trading Limited | Real estate | 2014 |
| Burhill Properties Limited | Construction | 2002 |
| Burleigh Mansions Management Company Limited | Households | 2005 |
| Burma House (Staines) Limited | Real estate | 1965 |
| Burnt Common Limited | Professional & scientific | 1982 |
| Burnt Common Nurseries Limited | Real estate | 1966 |
| Burwood Building Co Ltd | Manufacturing | 2020 |
| Burwood Partners Limited | Professional & scientific | 2018 |
| Burwood Travel Limited | Administrative & support | 2003 |
| Bushy Business Limited | Other services | 2014 |
| Business Connect International Limited | Professional & scientific | 2008 |
| Business Nurture Corp Ltd | Professional & scientific | 2023 |
| Busy (Luton) Limited | Real estate | 2008 |
| Bute Capital Limited | Administrative & support | 2009 |
| C & N Talent Limited | Administrative & support | 2012 |
| C & S Hogarth Limited | Professional & scientific | 1969 |
| C & S Real Estate Limited | Real estate | 2019 |
| C J P Consultants Limited | Construction | 1998 |
| C L Dawson Ltd | Professional & scientific | 2020 |
| C Originals Ltd | Wholesale & retail | 2010 |
| C S Bass Ltd | Financial services | 2011 |
| C.E.King Limited | Manufacturing | 2012 |
| C.G.Car Audio Ltd | Administrative & support | 2007 |
| CA Global Solutions Ltd | Administrative & support | 2026 |
| Caber AI Limited | Information & communication | 2026 |
| Caboo Limited | Arts & recreation | 2012 |
| CAD Brokers Limited | Financial services | 2004 |
| Cadogan Gardens Limited | Households | 2014 |
| Caenshill Place Residents Limited | Households | 2019 |
| Caenshill Residents Association Limited | Real estate | 2005 |
| Caenwood Close Residents Company Limited | Real estate | 1980 |
| Cafe Security Limited | Information & communication | 2020 |
| Cafe Verditer Ltd | Hospitality | 2025 |
| Cafe Wood (Surrey) Limited | Hospitality | 2026 |
| Cafe Wood Ltd | Hospitality | 2023 |
| Cahaya Rocket Limited | Real estate | 2020 |
| California House Limited | Health & social care | 2025 |
| Calisbon Holdings Limited | Financial services | 2026 |
| Callbox Communications Limited | Administrative & support | 1987 |
| Callick-Reid Property Limited | Real estate | 2018 |
| Calma Cafe Limited | Hospitality | 2022 |
| Calum Mackenzie Limited | Professional & scientific | 2022 |
| Cameron Advisory Limited | Financial services | 2020 |
| Cameron Property Investments Limited | Real estate | 2002 |
| Campbell House (Haslemere) Management Company Limited | Households | 2024 |
| Camper Quest Limited | Administrative & support | 2020 |
| Cane Bay PTY Limited | Administrative & support | 2004 |
| Canine Beauty Ltd | Other services | 2023 |
| Cannlux Global Limited | Health & social care | 2026 |
| Canserra Ltd | Real estate | 2025 |
| CANTINA41 Limited | Hospitality | 2025 |
| Capital & County Advertising Limited | Professional & scientific | 2025 |
| Capsel Resourcing Limited | Public administration | 2015 |
| Capsicum Limited | Information & communication | 2024 |
| Capstone Ethical Ltd | Professional & scientific | 2025 |
| Car Quest Media Limited | Wholesale & retail | 2024 |
| Carbbind UK Limited | Manufacturing | 2025 |
| Carbuy Limited | Wholesale & retail | 2021 |
| Cardent UK Limited | Wholesale & retail | 2005 |
| Care Harmony Consulting Limited | Professional & scientific | 2024 |
| Carer Training Limited | Health & social care | 2015 |
| Carlton-Link UK Limited | Transport & logistics | 2007 |
| Carltonway Limited | | 1982 |
| Carmine Heating Limited | Construction | 2023 |
| Carney & Kirkman Management Ltd | Real estate | 2025 |
| Carnova Pro Motors Ltd | Wholesale & retail | 2026 |
| Carolinas Enterprises Limited | Extraterritorial | 2002 |
| Caroline Cust Architecture Limited | Professional & scientific | 2017 |
| Caroline Maclean Management Services Limited | Real estate | 2017 |
| Caroline Maclean Property Consulting Limited | Real estate | 2015 |
| Caroline Thompson Associates Limited | Professional & scientific | 2026 |
| Carroll & Co Investments Limited | Real estate | 2023 |
| Carrollco Ltd | Real estate | 2022 |
| Carter Maddox Associates Limited | Administrative & support | 2016 |