| Business in Surrey Ltd | Administrative & support | 2020 |
| Business Insurance Solutions Limited | Financial services | 2009 |
| Business Science Limited | Information & communication | 2012 |
| Businessoptix Limited | Information & communication | 2011 |
| Busy Bark Ltd | Wholesale & retail | 2025 |
| Buttercup Agency Limited | Administrative & support | 2019 |
| Buy Art Fair Ltd | Administrative & support | 2007 |
| Buy Night Ltd | Real estate | 2015 |
| Buy to LET Hunter Limited | Real estate | 2021 |
| Buy to LET Insurance Services Limited | Extraterritorial | 2003 |
| Buzz Coffee Co Limited | Construction | 2016 |
| BW Architecture Ltd | Professional & scientific | 2018 |
| BY G Studio Limited | Information & communication | 2025 |
| Byherd Ltd | Information & communication | 2026 |
| Byrne Looby Partners (UK) Limited | Information & communication | 2012 |
| Byrnecut UK Limited | Financial services | 2018 |
| Byway Games Limited | Information & communication | 2025 |
| Bébé Baby Ltd | Wholesale & retail | 2021 |
| C & C Cabinet Makers Limited | Manufacturing | 2003 |
| C & G Cars (Guildford) Ltd | Transport & logistics | 2008 |
| C Cook Consulting Limited | Professional & scientific | 2017 |
| C J Appleyard TST RE Miss I Brown Ltd | Households | 2023 |
| C K 3 Limited | Professional & scientific | 2009 |
| C P Law (Guildford) Limited | Professional & scientific | 2023 |
| C P Law Associates Limited | Professional & scientific | 2014 |
| C&D Drylining Limited | Construction | 2016 |
| C&D Home Developments Limited | Real estate | 2018 |
| C&E Property Management Ltd | Real estate | 2020 |
| C&L Electrical Services Ltd | Construction | 2022 |
| C&W Roofing Services Ltd | Construction | 2025 |
| C.E.C. AB Ltd. | Manufacturing | 2007 |
| C1MSA Ltd | Professional & scientific | 2009 |
| C2NET Limited | Information & communication | 2024 |
| C4CONTROLS Ltd | Information & communication | 2015 |
| CA Electrical Surrey Limited | Real estate | 2017 |
| CA Fitness & Wellbeing Ltd | Health & social care | 2011 |
| Caamcad Ltd | Administrative & support | 2021 |
| Cabana Paradise Ltd | Hospitality | 2026 |
| Cabbage White Jewellery Ltd | Manufacturing | 2012 |
| CACOON121 Ltd | Administrative & support | 2009 |
| Cactus Flower Ltd | Professional & scientific | 2024 |
| Cadd Construction Ltd | Construction | 2026 |
| Cadmus Real Estate Ltd | Real estate | 2025 |
| Cafe at Kings Ltd | Hospitality | 2023 |
| Caffe Praego Coffee Company Ltd | Hospitality | 2015 |
| Caffetteria DI Bella Ltd | Hospitality | 2026 |
| CAG Property Management Limited | Real estate | 2017 |
| Cag-Gc Consulting Limited | Construction | 2004 |
| Cais Consulting Ltd | Professional & scientific | 2014 |
| Caitlin Taylor Limited | Professional & scientific | 2020 |
| Cakes by Nina Ltd | Hospitality | 2022 |
| Calabash Consulting Limited | Professional & scientific | 2010 |
| Caleb Lovejoy's Almshouse Charity | Hospitality | 2017 |
| Calek Ltd | Professional & scientific | 2023 |
| Calibre Contractors Ltd | Construction | 2023 |
| Calibre Energy Solutions Ltd | Construction | 2017 |
| Calibre Futures Ltd | Transport & logistics | 2023 |
| CALIBRE8 Recruitment Ltd | Administrative & support | 2018 |
| CALL4CHANGE Limited | Professional & scientific | 1999 |
| Callm and Fresh Properties Ltd | Real estate | 2022 |
| Callm Properties Limited | Real estate | 2020 |
| Callm Sourcing Limited | Real estate | 2022 |
| Callswitch Limited | Information & communication | 2019 |
| Calmdays Ltd | Wholesale & retail | 2019 |
| CAM Commercial Property Management Limited | Real estate | 2025 |
| CAM Electrical Surrey Ltd | Construction | 2024 |
| CAM Hoss Limited | Information & communication | 2021 |
| Camascope Limited | Information & communication | 2015 |
| Cambalt Properties Limited | Real estate | 2022 |
| Cambium Partners Ltd | Professional & scientific | 2024 |
| Cameron Wilson Limited | Information & communication | 2014 |
| Camwey Limited | Extraterritorial | 2016 |
| Canine Ketchup Limited | Manufacturing | 2015 |
| Cannon Build Plant Ltd | Administrative & support | 2025 |
| Cannon Build Renewables Ltd | Construction | 2025 |
| Cannon Build Solutions Ltd | Construction | 2007 |
| Cannon Coffee Ltd | Manufacturing | 2020 |
| Canopy Care Ltd | Administrative & support | 2024 |
| Canopy Coffee Ltd | Wholesale & retail | 2015 |
| Cape Renewable Energy Group Limited | Professional & scientific | 2018 |
| Capital Wealth Advice Ltd | Financial services | 2025 |
| Capricorn Coal Limited | Mining & quarrying | 2019 |
| Capsule Projects Limited | Professional & scientific | 2015 |
| Car Paint Repairs Guildford Limited | Wholesale & retail | 2012 |
| Car Wash & Cleaning Ltd | Wholesale & retail | 2024 |
| Car Wash and Detailing Ltd | Administrative & support | 2025 |
| Carbocris Ltd | Other services | 2024 |
| Cardssafe Limited | Administrative & support | 2003 |
| Care Catering Limited | Hospitality | 2004 |
| Care It-Services Limited | Information & communication | 2010 |
| Care Nexus Tech Ltd | Information & communication | 2026 |
| Carecommunity Hub Limited | Health & social care | 2025 |
| Career Cafe Coach Ltd | Administrative & support | 2023 |
| Career Goal Limited | Education | 2015 |
| Cargogo Ltd | Transport & logistics | 2025 |
| Caribbean Sail Training Ltd | Transport & logistics | 2004 |
| Carl Mcgillivray Limited | Information & communication | 2011 |
| Carla Bolton Investments Limited | Real estate | 2024 |
| Carlfix Ltd | Construction | 2025 |
| Carlota Cotarelo Ltd | Wholesale & retail | 2023 |