| Cloudless SKY5 Ltd | Health & social care | 2014 |
| Cloudmilling Limited | Information & communication | 2018 |
| Cloudpeek Limited | Information & communication | 2024 |
| Cloudpilar Academy Limited | Information & communication | 2025 |
| Cloudpilar Limited | Information & communication | 2023 |
| Cloudpulse Systems Limited | Professional & scientific | 2025 |
| Clouds Hill Court Management Company Limited | Real estate | 2016 |
| Clouds Hill Management Company Limited | Real estate | 2017 |
| Clouds Hill Road Limited | Households | 2022 |
| Cloudwalker Ltd | Information & communication | 2018 |
| Clova Search Ltd | Administrative & support | 2024 |
| Clove Luckwell Road Ltd | Extraterritorial | 2024 |
| Clove Restaurant Bristol Limited | Hospitality | 2019 |
| Clover Health and Homecare Limited | Health & social care | 2015 |
| Clover Lane Property Ltd | Real estate | 2025 |
| Clover Maintenance Limited | Construction | 2004 |
| Clover Refurbishment Limited | Extraterritorial | 2004 |
| Cloverleaf Estates Limited | Construction | 2008 |
| Clowance Estate Management Company Limited | Hospitality | 1984 |
| CLP Group Limited | Professional & scientific | 2010 |
| CLP Structures Ltd | Professional & scientific | 2014 |
| Clpercy Limited | Real estate | 2021 |
| CLR Lofts Ltd | Construction | 2021 |
| CLR Management Services Ltd | Construction | 2020 |
| CLR Property Group Ltd | Real estate | 2026 |
| CLS Auto Solutions Ltd | Wholesale & retail | 2020 |
| CLS Coffee Limited | Hospitality | 2026 |
| Club 395 Ltd | Hospitality | 2025 |
| Club Aesthetics Ltd | Other services | 2023 |
| Club Bristol Ltd | Transport & logistics | 2018 |
| Club Comfi Leisure Limited | Hospitality | 2003 |
| Club CUT Ltd | Other services | 2025 |
| Club Fortyfive Limited | Wholesale & retail | 2024 |
| Club Love Ltd | Arts & recreation | 2023 |
| Club TAN Ltd. | Other services | 2004 |
| Club Together Club C.I.C. | Information & communication | 2025 |
| Clubkaddy Limited | Manufacturing | 2007 |
| Clue Software Limited | Extraterritorial | 2025 |
| Clump Collective Ltd | Information & communication | 2022 |
| Clune Consultancy Limited | Professional & scientific | 2013 |
| Clutch & Go Ltd | Education | 2025 |
| Clutton Custom Campers Limited | Wholesale & retail | 2021 |
| Clutton Hill Agricultural Services Limited | Transport & logistics | 1983 |
| Clutton Vale Farm Ltd | Agriculture & fishing | 2024 |
| Cluuo Group Ltd | Manufacturing | 2020 |
| Clycan Management Limited | Administrative & support | 1978 |
| Clyd Limited | Real estate | 2018 |
| Clyne Power Limited | Energy | 2014 |
| CM Bryant and SON Limited | Extraterritorial | 2014 |
| CM Electrical Services Ltd | Construction | 2025 |
| CM Properties (Bristol) Ltd | Real estate | 2022 |
| CM Trans 28 Ltd | Transport & logistics | 2019 |
| CM17 Ltd | Professional & scientific | 2025 |
| CMA Retail Ltd | Wholesale & retail | 2016 |
| CMC Events Limited | Arts & recreation | 2026 |
| CMC Taxis (Bristol) Ltd | Wholesale & retail | 2015 |
| CMD Taxi Ltd | Transport & logistics | 2026 |
| Cmdb Solutions Ltd | Information & communication | 2011 |
| Cmdynamics Limited | Information & communication | 2022 |
| CMF Tiling Limited | Construction | 2012 |
| CMG SEF Trading Limited | Hospitality | 2020 |
| CMG Transport Ltd | Transport & logistics | 2021 |
| CMG UK Holdings Ltd | Financial services | 2020 |
| Cmgt Properties Ltd | Real estate | 2024 |
| Cmgtec Ltd | Information & communication | 2018 |
| Cmht LLP | | 2017 |
| CMI2I Limited | Information & communication | 2013 |
| CMJ Avon Holdings Limited | Real estate | 2018 |
| CMJ Property Investments Ltd | Real estate | 2020 |
| CMK Healthcare Limited | Health & social care | 2025 |
| CML Technical Services Limited | Other services | 2010 |
| CMM Building Services Limited | Construction | 2014 |
| CMM Trans Limited | Transport & logistics | 2016 |
| Cmore House 98 Church RD Management Co Ltd | Other services | 2016 |
| CMP Conveyancing Limited | Information & communication | 2022 |
| Cmpl EOT Management Ltd | Administrative & support | 2023 |
| Cmpr Developments Limited | Construction | 2017 |
| Cmpr Holdings Limited | Real estate | 2021 |
| CMR Developments (SW) Ltd | Real estate | 2016 |
| Cmresells Ltd | Construction | 2025 |
| CMS Engineering Services Ltd | Construction | 2003 |
| CMS Ventures Ltd | Real estate | 2025 |
| CMT Carpentry Services (Bristol) Limited | Construction | 2003 |
| CMU Investments Limited | Financial services | 2013 |
| CMW Accounting Services Ltd | Professional & scientific | 2015 |
| CMW Healthcare Ltd | Public administration | 2026 |
| CMW Property Limited | Real estate | 2022 |
| CN Plant Limited | Construction | 2016 |
| CNC Assist Ltd | Manufacturing | 2023 |
| CNC Data Ltd | Information & communication | 2011 |
| CNC Design Limited | Information & communication | 2012 |
| Cncr Ltd | Construction | 2025 |
| CND Homes Ltd | Real estate | 2022 |
| CNJ Associates Limited | Professional & scientific | 2018 |
| Cnoc Buidhe Wind Energy Hub Limited | Energy | 2021 |
| CNR Cafe Ltd | Hospitality | 2019 |
| CNR Shop Ltd | Wholesale & retail | 2014 |
| Cnxa Ltd | Wholesale & retail | 2025 |
| Co-Bridge Sustainable Solutions Ltd | Wholesale & retail | 2025 |
| Co-Housing Bristol Limited | Other services | 2004 |