| Carter Evans Ltd | Administrative & support | 2021 |
| Carter Monroe Ltd | Professional & scientific | 2024 |
| Carterwilliams Corporate Limited | Professional & scientific | 2024 |
| Cartiva Traders Ltd | Wholesale & retail | 2025 |
| Carvalho Ltd | Administrative & support | 2025 |
| Carvyne Ltd | Wholesale & retail | 2026 |
| Carz Holdings Ltd | Financial services | 2025 |
| Casa Blanco Limited | Real estate | 2018 |
| Case Elegance Limited | Administrative & support | 2018 |
| Cash & Carry Trophies Limited | Wholesale & retail | 2019 |
| Cash and Carry Teamwear Ltd | Wholesale & retail | 2019 |
| Cash Flow Bricks Ltd. | Real estate | 2019 |
| Cashmere Systems Ltd | Wholesale & retail | 2004 |
| Cask Global Canning Solutions Europe Limited | Manufacturing | 2019 |
| Caspia Management Limited | Construction | 2015 |
| Caspian Building Ltd | Construction | 2026 |
| Caspian Cuisine Limited | Hospitality | 2023 |
| Cassel & Fletcher (Rochdale) Ltd | Real estate | 2022 |
| Cassel & Fletcher Construction Limited | Construction | 2015 |
| Cassel & Fletcher Developments (Stalybridge) Limited | Real estate | 2020 |
| Cassel & Fletcher Holdings Limited | Professional & scientific | 2018 |
| Cassel & Fletcher Investments Limited | Real estate | 2018 |
| Cassel & Fletcher Ltd | Real estate | 2019 |
| Cassel & Fletcher Management Limited | Real estate | 2006 |
| Castana Cucine Ltd | Wholesale & retail | 2023 |
| Castings Services Limited | Wholesale & retail | 2015 |
| Castle Actuarial Ltd | Financial services | 2020 |
| Castle Grange Care Home Limited | Health & social care | 2021 |
| Castle Irwell Limited | Real estate | 2019 |
| Castle Island Holdings (2) Limited | Extraterritorial | 2022 |
| Castle Island Holdings Limited | Extraterritorial | 2022 |
| Castle Trade Frames Limited | Construction | 2015 |
| Castlegate Securities 2 Limited | Households | 2019 |
| Castlegate Securities Limited | Households | 2019 |
| Castleview Stogursey Management Company Limited | Real estate | 2024 |
| Castleward Derby SPV Limited | Real estate | 2025 |
| Castleward Derby SPV Opco Limited | Real estate | 2025 |
| Catalogue Outlet Limited | Wholesale & retail | 2024 |
| Catania Dance Ltd | Wholesale & retail | 2020 |
| Catholic Building Services Ltd | Construction | 2012 |
| Catholic Children's Rescue Society(Diocese of Salford)Incorporated | Health & social care | 1955 |
| Catholic Support Services Limited | Education | 1993 |
| Catholic Truth Society (Diocese of Salford) | Wholesale & retail | 1996 |
| Catholic Welfare Societies (Diocese of Salford) Limited | Health & social care | 1974 |
| Catlum Limited | Transport & logistics | 2016 |
| Cavendish Court Apartments Ltd | Construction | 2021 |
| Cavendish Trading Retail Limited | Wholesale & retail | 2012 |
| Cawib Care Limited | Health & social care | 2021 |
| Caycog Ltd | Administrative & support | 2026 |
| CB England Ltd | Extraterritorial | 2014 |
| CB Scotnorth Ltd | Extraterritorial | 2014 |
| CBB Marketing and Supplies Ltd | Wholesale & retail | 2025 |
| Cbts Technology Solutions UK Limited | Information & communication | 2008 |
| CBY Estates Limited | Real estate | 2025 |
| CC Property Maintenance Ltd | Construction | 2024 |
| CC5 Visuals Limited | Hospitality | 2026 |
| CCB Studio Ltd | Other services | 2025 |
| Cccakes Ltd | Wholesale & retail | 2026 |
| CDL Engineering Limited | Construction | 2026 |
| CED Claim Experts Ltd | Financial services | 2001 |
| Cedar Assets (2) Ltd | Extraterritorial | 2007 |
| Cedar Assets Ltd | Extraterritorial | 2007 |
| Cedar Building Services Limited | Construction | 2015 |
| Cedar Healthcare Ltd | Professional & scientific | 2014 |
| Cedar Tree Security Ltd | Administrative & support | 2025 |
| Cedars Rest Home Limited(The) | Health & social care | 1985 |
| Cedarwood (London) Limited | Real estate | 2016 |
| Cedarwood Asset Management Holdings Limited | Financial services | 2017 |
| Cedarwood Asset Management Limited | Construction | 2009 |
| Cedarwood Properties Ltd | Real estate | 2021 |
| Cedra Investments Ltd | Real estate | 2017 |
| Cedu Enrichment UK Topco Limited | Other services | 2017 |
| CEH Technologies Ltd | Manufacturing | 2019 |
| Celebri-Tee Printing Co Ltd | Professional & scientific | 2024 |
| Celeros Flow Technology UK Limited | Financial services | 2020 |
| Cementoblast Ltd | Real estate | 2025 |
| Cemos Painting & Decorating Ltd | Construction | 2026 |
| Centauri Cleaning Services Ltd | Administrative & support | 2019 |
| Centerpiece Property Limited | Real estate | 2022 |
| Central Apartments Didsbury Limited | Real estate | 2025 |
| Central School of Manchester Ltd | Education | 2009 |
| Central Street Investment Co Limited | Real estate | 2025 |
| Central Street SPV Limited | Real estate | 2018 |
| Centrum 2 Securities Limited | Real estate | 2025 |
| Centrum Securities Limited | Real estate | 2025 |
| Centurion Industrial Estate Management Company Limited | Real estate | 1984 |
| Centurion UK Services Ltd | Administrative & support | 2026 |
| Century Plaza Management Company Limited | Real estate | 2003 |
| Cerberus HCE Limited | Administrative & support | 2021 |
| Cerberus Holdings Limited | Professional & scientific | 2008 |
| Cerin Events Limited | Professional & scientific | 2026 |
| Cero International Ltd | Wholesale & retail | 2024 |
| CFC Law Ltd | Professional & scientific | 2024 |
| CFC Property Management Ltd | Real estate | 2024 |
| CFG Financial Services Limited | Financial services | 2022 |
| CFS Law Ltd | Administrative & support | 2022 |
| Cg&G Ltd | Health & social care | 2023 |
| Cgaf Limited | Construction | 2015 |
| Cgbl DG 2 Limited | Real estate | 2018 |
| Cgbl DG Limited | Real estate | 2018 |