| Chicken Barn Ltd | Hospitality | 2016 |
| Chicken Shaq Ltd | Hospitality | 2024 |
| Chicora Enterprises Ltd | Wholesale & retail | 2024 |
| Children First Family Mediation | Health & social care | 2009 |
| China Cottage Ltd | Extraterritorial | 2006 |
| China Gourmet Limited | Hospitality | 2025 |
| China Textiles Limited | Extraterritorial | 2018 |
| Chiragh Rana Property Development Ltd | Real estate | 2013 |
| Chit Chat Crew Ltd. | Information & communication | 2017 |
| Chiz Care Ltd | Health & social care | 2022 |
| Chocoholics Limited | Wholesale & retail | 1997 |
| Choicesteady Holdings Limited | Professional & scientific | 2015 |
| Chorlton Limited | Construction | 2014 |
| Chorlton MOT Centre Ltd | Wholesale & retail | 2019 |
| Choudhry Property Innovations Ltd | Financial services | 2024 |
| Chris Coffey Electrical (MCR) Limited | Construction | 2017 |
| Chris Holt Limited | Construction | 1973 |
| Chris James Construction Ltd | Construction | 2015 |
| Chris Lyall Tiling Solutions Ltd | Construction | 2008 |
| Chris Mcgrath Design Ltd | Professional & scientific | 2024 |
| Chris Thew Design & Print Limited | Manufacturing | 2003 |
| Chrislec Limited | Wholesale & retail | 1992 |
| Christian J Pepper Holdings Limited | Administrative & support | 2017 |
| Christian J Pepper Holdings ‘2’ Limited | Financial services | 2025 |
| Christian. J. Pepper Limited | Real estate | 2003 |
| Christine Clark Ltd | Administrative & support | 2002 |
| Chroma Consulting UK Limited | Professional & scientific | 2018 |
| Chroma Holdings Limited | Financial services | 2021 |
| Chrome Beauty and Skincare Ltd | Extraterritorial | 2008 |
| Chrysalis Supplies Ltd | Wholesale & retail | 2021 |
| Chula Foods Ltd | Hospitality | 2025 |
| Church Green Financial Services Limited | Financial services | 2005 |
| Church Meadow Property Limited | Real estate | 2026 |
| Chydon Limited | Extraterritorial | 2021 |
| Cictools Ltd | Information & communication | 2026 |
| Ciic Ltd | Professional & scientific | 2019 |
| Ciivic Marketing Limited | Information & communication | 2019 |
| Circle Leasing Limited | Administrative & support | 2002 |
| Circle Severn Ltd | Wholesale & retail | 2023 |
| Ciriclia Cars Ltd | Wholesale & retail | 2015 |
| Cirls Ltd | Education | 2018 |
| City Financial Associates Ltd | Professional & scientific | 2011 |
| City Park Management Company Limited | Real estate | 1991 |
| City Tippers (North West) Limited | Transport & logistics | 2009 |
| Citywide Motors Limited | Wholesale & retail | 2025 |
| Civic Marketing Ltd | Information & communication | 2016 |
| Civiluk Construction Ltd | Construction | 2020 |
| CJ Cleaning Services Limited | Administrative & support | 2013 |
| CJ Commerce Ltd | Wholesale & retail | 2026 |
| CJ Myatt Properties Ltd | Real estate | 2022 |
| CJH Leisure Ltd | Administrative & support | 2025 |
| CJM Holdings (NW) Ltd | Financial services | 2022 |
| CJM Investment Ltd | Real estate | 2019 |
| CJM Motors Ltd | Wholesale & retail | 2025 |
| CJN Investments Limited | Real estate | 2019 |
| CJP Financial Services Limited | Financial services | 2007 |
| CJR Wholesale Ltd | Wholesale & retail | 2022 |
| Cjsn Properties and Development Limited | Real estate | 2021 |
| CJW Joinery Ltd | Manufacturing | 2018 |
| CK Enterprises Group Limited | Information & communication | 2018 |
| CK Plastics (Bury) Limited | Construction | 2010 |
| CKA Investments Ltd | Real estate | 2024 |
| CKE (UK) Limited | Manufacturing | 2012 |
| Cklh Properties Limited | Real estate | 2024 |
| CL Group Civils Limited | Administrative & support | 2016 |
| Claims WE DO Limited | Professional & scientific | 2022 |
| Clare Group Holdings Limited | Financial services | 2015 |
| Clarendon Investments Limited | Construction | 1976 |
| Clare’S Finance Ltd | Financial services | 2025 |
| Clarity Fire and Safety Training Limited | Education | 2017 |
| Clarke Williams Developments Limited | Construction | 2017 |
| Clarkies Property Management Ltd | Administrative & support | 2017 |
| Clarks Crafts Limited | Wholesale & retail | 2022 |
| Class Alloys Ltd | Wholesale & retail | 2018 |
| Class Catch Limited | Education | 2025 |
| Class Consulting Limited | Information & communication | 2025 |
| Class CUT Barber Ltd | Other services | 2020 |
| Classic Elegance Cars Ltd | Transport & logistics | 2025 |
| Claudine Care Services Ltd | Health & social care | 2014 |
| Claverton Woodgate Limited | Other services | 2022 |
| Clawsy Ltd | Wholesale & retail | 2024 |
| Clayton Fold (Burnley) Management Company Limited | Households | 2006 |
| Clear Filtration Limited | Administrative & support | 2008 |
| Clear Infinity LLP | | 2018 |
| Clear Machine Safety Limited | Administrative & support | 2009 |
| Clear View Accounting Limited | Professional & scientific | 2019 |
| Clearstone Commercial Ltd | Real estate | 2025 |
| Clearstone Group Limited | Construction | 2025 |
| Clearstone Trading Limited | Wholesale & retail | 2015 |
| Clegg Hall Mills Management Company Limited | Households | 2009 |
| Clerkin Holdings Limited | Real estate | 2026 |
| Clever Recycling Ltd | Water & waste | 2020 |
| CLICK2SMILES Ltd | Professional & scientific | 2024 |
| Clifton Festival Ltd | Arts & recreation | 2025 |
| Cliniche Hair Removal Limited | Education | 2025 |
| Cliniche Limited | Other services | 2022 |
| Clitheroe Foot Clinic Limited | Health & social care | 2019 |
| Clive Bowden & Sons Ltd. | Wholesale & retail | 1999 |
| CLJ Installations Ltd | Construction | 2006 |
| Clma Property Limited | Real estate | 2017 |