| Cell One Comms Ltd | Wholesale & retail | 2018 |
| Cell World Ltd. | Wholesale & retail | 2014 |
| Cellab Ltd | Wholesale & retail | 2025 |
| Cellell Ltd | Information & communication | 2019 |
| Celnoia Technologies Ltd | Information & communication | 2026 |
| Celsius Heating Supplies Limited | Construction | 2019 |
| Celwest Limited | Construction | 2017 |
| Cemco 22 Limited | Extraterritorial | 2012 |
| Cemco 23 Limited | Extraterritorial | 2012 |
| Cenhenco Limited | Wholesale & retail | 2010 |
| Centenary Investements Limited | Financial services | 2013 |
| Central Carpets (Bolton) Ltd | Wholesale & retail | 2022 |
| Central Carpets and Furniture Limited | Wholesale & retail | 2017 |
| Central Garage Doors (NW) Limited | Construction | 2001 |
| Central Health Holdings Limited | Health & social care | 2010 |
| Central Health Limited | Professional & scientific | 2001 |
| Central Heating Hub Hubcare Limited | Other services | 2022 |
| Central Heating Hub West Midlands Ltd | Construction | 2022 |
| Central Timber Supplies Limited | Wholesale & retail | 2016 |
| Centre Park Investments Limited | Real estate | 2023 |
| Centreway Investments Limited | Real estate | 2012 |
| Centro Group of Companies Ltd | Hospitality | 2023 |
| Centroid (UK) Limited | Information & communication | 2007 |
| Century Painting Contractors Ltd | Professional & scientific | 2003 |
| Century Properties Limited | Hospitality | 2022 |
| Century Support Limited | Administrative & support | 2021 |
| CEO Transport Ltd | Transport & logistics | 2026 |
| Ceramic Solution Projects Ltd | Construction | 2016 |
| Ceramic Wall & Floor Tiling Limited | Construction | 2010 |
| Cerebrovascular Solutions London Limited | Health & social care | 2026 |
| Cerin Ltd | Extraterritorial | 2005 |
| Certain Angle Ltd | Professional & scientific | 2019 |
| Certax Accounting Bolton Limited | Professional & scientific | 2013 |
| Certi Driving School Ltd | Education | 2025 |
| Certified Public Accountants Association | Other services | 1997 |
| CES Electrical NW Ltd | Construction | 2026 |
| Ceterus Consultants Limited | Professional & scientific | 2017 |
| Ceylon Edge Ltd | Wholesale & retail | 2025 |
| Cezar G&T Ltd | Transport & logistics | 2021 |
| CF Bike Fit Ltd | Other services | 2025 |
| CF Carpentry & Joinery Limited | Construction | 2011 |
| CF Northwest Ltd | Construction | 2003 |
| Cfaftora Ltd | Wholesale & retail | 2026 |
| Cfans Limited | Manufacturing | 2003 |
| CFB Ventures Ltd | Professional & scientific | 2019 |
| CFC Shakes Bolton Ltd | Hospitality | 2024 |
| CFH Management Company Ltd | Real estate | 2018 |
| CFJ Estates Limited | Real estate | 2022 |
| Cfjbm Limited | Wholesale & retail | 2026 |
| CFM Management Limited | Professional & scientific | 2020 |
| CFO Support Limited | Professional & scientific | 2024 |
| CFU Limited | Wholesale & retail | 2001 |
| Cfuf Pathway CIC | Arts & recreation | 2026 |
| Cfwc Limited | Construction | 2015 |
| CG & D Properties Ltd | Real estate | 2018 |
| CG Properties One Limited | Real estate | 2025 |
| CGB Bathroom and Wetroom Specialists Ltd | Construction | 2016 |
| CGG Dents Ltd | Wholesale & retail | 2020 |
| CGT 360 Ltd | Transport & logistics | 2019 |
| CH Heating and Building Services Ltd | Construction | 2021 |
| CH Hydraulics Limited | Manufacturing | 2020 |
| CH Windows & Doors Ltd | Manufacturing | 2023 |
| Chad Isherwood Wholesale Grocers Ltd | Wholesale & retail | 2019 |
| Chadderton Bar Limited | Hospitality | 2020 |
| Chadderton Dining Ltd | Hospitality | 2017 |
| Chadderton Realisations Limited | Construction | 2022 |
| Chadwick Health & Protection Limited | Financial services | 2024 |
| Chadwick Leisure Group Ltd | Arts & recreation | 2026 |
| Chadwicks Property Management Limited | Households | 2021 |
| Chahal Energy Ltd | Construction | 2023 |
| Chahal Energy Solutions Ltd | Construction | 2020 |
| Chai Active Limited | Wholesale & retail | 2024 |
| Chai Stop One Limited | Hospitality | 2023 |
| Chai Stop Two Limited | Hospitality | 2023 |
| Chaibibi Ltd | Wholesale & retail | 2021 |
| Chaii Paani Ltd | Hospitality | 2026 |
| Chalad Limited | Real estate | 2018 |
| Chalk & Key Ltd | Construction | 2022 |
| Chalk & Steel Limited | Arts & recreation | 2019 |
| Chalke Valley Engineering Group Ltd | Manufacturing | 2019 |
| Challenger Building Services Ltd | Construction | 2017 |
| Challenger Code Limited | Information & communication | 2026 |
| Challenger Homes (Urmston) Limited | Construction | 2020 |
| Challenger Homes Limited | Construction | 2019 |
| Challis Recruit Limited | Administrative & support | 2020 |
| Chaloo Limited | Real estate | 2023 |
| Chals Express Ltd | Transport & logistics | 2025 |
| Chamberlain Doors Ltd. | Construction | 1976 |
| Chamberlain Garage Door Openers Limited | Extraterritorial | 1994 |
| Chameleon Kitchens (Bury) Ltd | Other services | 2016 |
| Champion Cleaning Services Limited | Other services | 2012 |
| Champions Sports Community Store CIC | Wholesale & retail | 2025 |
| Chan-Lam Consulting Limited | Administrative & support | 2019 |
| Chancellor Financial Management Limited | Financial services | 2006 |
| Chandala Trading Ltd | Wholesale & retail | 2019 |
| Change Consulting Services Ltd | Professional & scientific | 2019 |
| Change Glazing and Locks Limited | Construction | 2017 |
| Change Property Investment Limited | Real estate | 2020 |
| Change Services Limited | Professional & scientific | 2022 |
| Channel Marketing Limited | Professional & scientific | 2019 |