| Co-Lab Inc Limited | Wholesale & retail | 2017 |
| Co-Labs Group Ltd | Professional & scientific | 2021 |
| Co-Nx Ltd | Professional & scientific | 2019 |
| CO2BALANCE Group Limited | Professional & scientific | 2003 |
| CO2BALANCE UK Limited | Professional & scientific | 2003 |
| Coach House Hambrook Ltd | Real estate | 2024 |
| Coaches Elite Ltd | Administrative & support | 2011 |
| Coaching Culture and Change Ltd | Administrative & support | 2020 |
| Coaching for Women CIC | Other services | 2019 |
| Coaching Minds Limited | Professional & scientific | 2016 |
| Coaching Psychology Ltd | Professional & scientific | 2015 |
| Coachmark Ltd | Education | 2025 |
| Coachtek Systems Ltd | Wholesale & retail | 2009 |
| Coaction Consulting Limited | Professional & scientific | 2021 |
| Coalesce Productions Ltd | Arts & recreation | 2019 |
| Coalpit Asset Management Limited | Real estate | 2012 |
| Coast Homes (Bristol) Limited | Real estate | 2006 |
| Coast Recruit Ltd | Administrative & support | 2023 |
| Coastal Marine (Holdings) Ltd | Manufacturing | 2015 |
| Coates & Scarry Limited | Wholesale & retail | 2014 |
| Coates Agencies Ltd | Wholesale & retail | 2013 |
| Coates House Limited | Hospitality | 2024 |
| Coba Homes Ltd | Real estate | 2023 |
| Cobalt Blue Consulting Ltd | Professional & scientific | 2016 |
| Cobalt Security (Bristol) Limited | Administrative & support | 2008 |
| Cobalt Survey Services Limited | Financial services | 2023 |
| Cobb Operational Real Estate Partnership Ltd | Administrative & support | 2025 |
| Cobb Road Management Company Limited | Households | 2026 |
| Cobb Ventures | Financial services | 2025 |
| Cobb Warren Limited | Professional & scientific | 2019 |
| Cobbler Holdings Limited | Professional & scientific | 2025 |
| Cobbold & Company (Accountants) Limited | Professional & scientific | 2014 |
| Cobby Veterinary Services Ltd | Professional & scientific | 2024 |
| Cobo Technologies Ltd | Wholesale & retail | 2020 |
| Cobolt Business Services Ltd | Wholesale & retail | 2019 |
| Cobourg Ltd | Real estate | 2023 |
| Cobra Castle Solar Farm Limited | Energy | 2022 |
| Cobur Property Ltd | Real estate | 2024 |
| Cobweb Cleaners Limited | Administrative & support | 2022 |
| Cocina Ruvira Ltd | Hospitality | 2025 |
| Cockburn Enterprises Ltd | Households | 2020 |
| Cockroft Properties Limited | Real estate | 2022 |
| Cocktail Porter Ltd | Wholesale & retail | 2021 |
| Coco Bronze Tanning Ltd | Other services | 2024 |
| Coco Hair & Beauty Limited | Other services | 2005 |
| Coco Mobile Limited | Wholesale & retail | 2019 |
| Coco Nails Westbury Ltd | Other services | 2025 |
| Coco Rose Beauty Therapy Limited | Other services | 2020 |
| Coco's Beauty Box Ltd | Other services | 2020 |
| Cocoa Libre (2014) Limited | Manufacturing | 2014 |
| Cocoa Libre Limited | Manufacturing | 2020 |
| Cocoa Logistics Ltd | Health & social care | 2025 |
| Coconut Chilli Limited | Manufacturing | 2006 |
| Coconut Chilli Restaurants Limited | Hospitality | 2019 |
| Coconut Systems Ltd | Manufacturing | 2026 |
| Coconutsytems Ltd | Manufacturing | 2026 |
| Cocoon Homewear Limited | Extraterritorial | 2026 |
| Cocooned Health Ltd | Education | 2025 |
| Cocourt Limited | Real estate | 1995 |
| COD Steaks Limited | Manufacturing | 2002 |
| Codasip UK Limited | Other services | 2021 |
| Code Everything Limited | Information & communication | 2014 |
| Code Health Clinics Limited | Health & social care | 2025 |
| Code PI Limited | Education | 2024 |
| Code Poets Limited | Information & communication | 2007 |
| Code Pushers Ltd | Information & communication | 2016 |
| Code State Ltd | Information & communication | 2020 |
| Code Vineyard Ltd | Information & communication | 2016 |
| Codeava Technologies Ltd | Information & communication | 2024 |
| Codebyfire Limited | Information & communication | 2016 |
| Codeed Ltd | Information & communication | 2016 |
| Codehect Ltd | Information & communication | 2020 |
| Codent Ltd | Information & communication | 2019 |
| Codepulse IT Innovations Ltd | Information & communication | 2025 |
| Codevertex Ltd | Information & communication | 2015 |
| Codexiq Systems Limited | Information & communication | 2018 |
| Codgbrook Consultancy Limited | Professional & scientific | 2019 |
| Coding Kicks Ltd | Information & communication | 2022 |
| Codita Ltd | Information & communication | 2019 |
| Codobo Limited | Professional & scientific | 2016 |
| Codorniu UK Limited | Wholesale & retail | 1999 |
| Codreanu Healthcare Ltd | Health & social care | 2017 |
| COE Enterprise Limited | Hospitality | 2025 |
| Coedlan Wood Ltd | Wholesale & retail | 2025 |
| Coexist Community Kitchen CIC | Education | 2019 |
| Coexist Community Solutions Ltd | Real estate | 2026 |
| Coffee + Beer Limited | Wholesale & retail | 2016 |
| Coffee at Ours Limited | Hospitality | 2019 |
| Coffee Bristol Limited | Wholesale & retail | 2026 |
| Coffee Club Bristol Ltd | Hospitality | 2024 |
| Coffee CUP (Bristol) Limited | Hospitality | 2019 |
| Coffee Essentials Limited | Hospitality | 2006 |
| Coffee Properties Limited | Extraterritorial | 2022 |
| Coffee Tech UK Ltd | Manufacturing | 2022 |
| Coffee&Pitta House Ltd | Hospitality | 2022 |
| Coffeepittahousefilton Ltd | Hospitality | 2025 |
| Coffetek Limited | Manufacturing | 1993 |
| Cofinet UK Ltd | Wholesale & retail | 2019 |
| Cogent Communications UK Ltd | Information & communication | 2000 |
| Cogent Professional Services Limited | Professional & scientific | 2024 |