| Bovance Ltd | Information & communication | 2026 |
| Box Partners 2 LLP | | 2022 |
| Box Partners LLP | | 2021 |
| Boylston (UK) Holdings Ltd. | Administrative & support | 2019 |
| Braaibq Limited | Hospitality | 2024 |
| Braced for Scoliosis Ltd | Health & social care | 2021 |
| Bramhall Enterprises Ltd | Administrative & support | 2021 |
| Bramham Estates Limited | Real estate | 2008 |
| Bramham Holdings Limited | Financial services | 2008 |
| Brand Enhance Ltd | Wholesale & retail | 2019 |
| Brands Deluxe Limited | Administrative & support | 2026 |
| Branoos Limited | Real estate | 1977 |
| Bridgetant Investments Limited | Real estate | 1960 |
| Bright Partnerships Worldwide Limited | Professional & scientific | 2013 |
| Bright Venture Partners Ltd | Real estate | 2024 |
| Brink Strategy Limited | Professional & scientific | 2023 |
| Brisson Close Residents Association Limited | Households | 1989 |
| Broadfields Holdings Ltd | Real estate | 2020 |
| Broadmay Ltd. | Manufacturing | 2018 |
| Brompton Travel (2004) Limited | Real estate | 2004 |
| Brompton Travel Limited | Real estate | 1963 |
| Brookwell Place Residents Company Limited | Administrative & support | 2000 |
| Brower Limited | Financial services | 2016 |
| BSK Investments (Esher) Ltd | Construction | 2016 |
| BSP Travel Limited | Administrative & support | 2004 |
| BTM Investment Property Ltd | Real estate | 2018 |
| Building and Workplace Solutions Limited | Administrative & support | 2002 |
| Buildmarket Limited | Real estate | 1994 |
| Burncastle Limited | Financial services | 1978 |
| Business Change SOL Ltd. | Professional & scientific | 2012 |
| Butterfield Brothers Limited | Professional & scientific | 2022 |
| BVS Drinks Ltd | Wholesale & retail | 2025 |
| BWS (BSA) Solutions Ltd | Administrative & support | 2024 |
| Bywater Business Psychology Limited | Professional & scientific | 2011 |
| Bywater Limited | Extraterritorial | 2015 |
| Bywater Solutions Ltd | Administrative & support | 2008 |
| Bywater Training Limited | Professional & scientific | 2008 |
| C & H Esher Limited | Wholesale & retail | 2016 |
| C R Heard Properties Limited | Real estate | 2024 |
| C.A. Hathaway Limited | Construction | 1965 |
| C.V.E. (London) Limited | Wholesale & retail | 2010 |
| Cafe Bridge KF Ltd | Administrative & support | 2026 |
| Cafe Chaud Limited | Hospitality | 2002 |
| Cafe Menta Ltd | Hospitality | 2014 |
| Cahokia Heavy Industries Ltd | Financial services | 2008 |
| Calibre ALM Ltd | Information & communication | 2025 |
| Calliope Inigo Trading Limited | Wholesale & retail | 2019 |
| Calpe Hotels Group Ltd. | Administrative & support | 1995 |
| Canal Consulting Limited | Professional & scientific | 2008 |
| Canizaro Limited | Construction | 2013 |
| Canvas Property Partners Limited | Real estate | 2009 |
| Capabledesign Ltd | Professional & scientific | 2017 |
| Capacity Insight Ltd | Financial services | 2021 |
| Capellaro Design Limited | Professional & scientific | 2008 |
| Capital Roofing Group Limited | Construction | 2024 |
| Capital Viewpoint Ltd | Professional & scientific | 2020 |
| Car Vale Properties Limited | Real estate | 1956 |
| Carbon Enterprises Limited | Other services | 1984 |
| Card & INK Ltd | Wholesale & retail | 2024 |
| Carelane Limited | Hospitality | 1996 |
| Carnatic Wood Crafts Ltd | Wholesale & retail | 2018 |
| Carver Coaching Ltd | Professional & scientific | 2020 |
| Cassim Consulting Ltd | Health & social care | 2026 |
| Cassowary & Co Limited | Professional & scientific | 2017 |
| Catalyse International Ltd | Professional & scientific | 2025 |
| Catalyst 4 Growth Ltd | Professional & scientific | 2025 |
| Category Dynamics Ltd | Information & communication | 2025 |
| Catherine Kunzig Ltd | Administrative & support | 2025 |
| Cathles Property Ltd | Households | 2019 |
| Catsy Candles Limited | Wholesale & retail | 2020 |
| Cavila Limited | Professional & scientific | 2006 |
| Cayte Designs Ltd | Manufacturing | 2022 |
| CB Facial Aesthetics Ltd | Professional & scientific | 2023 |
| CCB Creations Limited | Administrative & support | 2023 |
| CEC Investments Limited | Extraterritorial | 2014 |
| Cedarwood Estates Limited | Other services | 2011 |
| Cedarwood Property Services Limited | Administrative & support | 2012 |
| Centrum (UK) Limited | Administrative & support | 2006 |
| Ceros (Bradford) Limited | Construction | 2001 |
| Ceros NO.1 Limited | Administrative & support | 2004 |
| CG Grace Limited | Real estate | 2015 |
| CG Sphere Ltd | Information & communication | 2025 |
| CGA Sandown Limited | Arts & recreation | 2002 |
| CGM ME Limited | Professional & scientific | 2023 |
| Chalford Court (Surbiton) Residents Association Limited | Hospitality | 1970 |
| Chalk & Cork Ltd | Education | 2025 |
| Chambers Capital Ltd | Financial services | 2019 |
| Chapeltown Developments Limited | Construction | 2021 |
| Chard Junction Secure Storage Limited | Real estate | 2025 |
| Charlesgate (UK) Holdings Ltd. | Administrative & support | 2019 |
| Charlie Green Inspections Limited | Construction | 2024 |
| Charlotte Court (Esher) Management Company Limited | Households | 2002 |
| Charming Beauty Clinic Limited | Health & social care | 2016 |
| Chartres Communications Ltd | Professional & scientific | 2014 |
| CHC Clotilde Henriot Consulting Limited | Professional & scientific | 2024 |
| Chemdigital Ltd. | Professional & scientific | 2024 |
| Chemistry Recruiters Limited | Professional & scientific | 2013 |
| Cherry Create Ltd. | Arts & recreation | 2020 |
| Chess Ambassadors Ltd | Information & communication | 2018 |
| Chester Montague Management Limited | Households | 2017 |