| C W E Commissioning Ltd | Other services | 2013 |
| C W Edwards Transport Ltd | Transport & logistics | 2016 |
| C Walker Tiling & Bathrooms Ltd | Construction | 2021 |
| C Ward Trading Limited | Wholesale & retail | 2024 |
| C Williams Clinical Services Limited | Wholesale & retail | 2021 |
| C Y Electrical Services Limited | Construction | 2025 |
| C Y Property Management Limited | Real estate | 2011 |
| C&A Pest Control Ltd | Administrative & support | 2026 |
| C&C Fentons Limited | Wholesale & retail | 2020 |
| C&C Global Resource Ltd | Wholesale & retail | 2022 |
| C&C Legaltech Limited | Administrative & support | 2017 |
| C&C Limited | Health & social care | 2022 |
| C&C Public Hospitality Ltd. | Hospitality | 2020 |
| C&Cc Trading Ltd | Wholesale & retail | 2025 |
| C&D Security Ltd | Administrative & support | 2021 |
| C&G Healthcare Ltd | Wholesale & retail | 2025 |
| C&J Wilcox Limited | Information & communication | 2019 |
| C&K Kitchen Ltd | Hospitality | 2025 |
| C&L International Trading Ltd | Wholesale & retail | 2018 |
| C&M Accountants Ltd | Professional & scientific | 2015 |
| C&M Office Ltd | Professional & scientific | 2017 |
| C&M Properties 318 Ltd | Real estate | 2025 |
| C&M Two Sisters Limited | Real estate | 2000 |
| C&N Civils Limited | Construction | 2025 |
| C&O Electrical Services Ltd | Construction | 2022 |
| C&P Ventures Limited | Professional & scientific | 2019 |
| C&Q Delivery Ltd | Transport & logistics | 2024 |
| C&R Holdings Ltd | Financial services | 2020 |
| C&R Property & Construction Limited | Construction | 2020 |
| C&S Allington Ltd | Real estate | 2025 |
| C&S Brickwork Ltd | Construction | 2020 |
| C&S(Uk) Limited | Professional & scientific | 2009 |
| C&T Europa Ltd | Arts & recreation | 2010 |
| C&T Real Estate Ltd | Real estate | 2022 |
| C&W Dryliners Ltd | Construction | 2023 |
| C&W Installations Limited | Construction | 2023 |
| C-Mac (Holdings) Limited | Real estate | 2019 |
| C-Plan Ltd | Health & social care | 2006 |
| C-Trg Resource Limited | Administrative & support | 2006 |
| C-Ways Limited | Information & communication | 1997 |
| C. Averill Joinery Ltd | Construction | 2006 |
| C. Banham & Co Ltd | Professional & scientific | 2025 |
| C. Fountain Limited | Other services | 2009 |
| C. H. Wang Limited | Real estate | 2026 |
| C. Middleton and SON Limited | Other services | 1956 |
| C. Owens (Builders & Contractors) Limited | Construction | 1957 |
| C. Palmer Building and Joinery Limited | Construction | 2016 |
| C. W. Planning Limited | Professional & scientific | 2013 |
| C.& M.Contractors(Manchester)Limited | Construction | 1969 |
| C.A. Malpas Ltd | Health & social care | 2023 |
| C.A.C Palace of Grace Manchester UK | Other services | 2025 |
| C.A.R Plastering Ltd | Construction | 2025 |
| C.A.R. Agrar Ltd | Agriculture & fishing | 2023 |
| C.A.T.S Youth Theatre | Arts & recreation | 2011 |
| C.A.T.S.S. Company Limited | | 1984 |
| C.A.Y Properties Ltd | Real estate | 2019 |
| C.B Roofing Limited | Construction | 2024 |
| C.B. Carpentry MCR Limited | Construction | 2025 |
| C.B. Eastlands Limited | Administrative & support | 2011 |
| C.B. Properties MCR Limited | Real estate | 2025 |
| C.B. Surveys Limited | Professional & scientific | 1999 |
| C.C. Northern Limited | Arts & recreation | 1992 |
| C.C.C.G.M Property Limited | Real estate | 2022 |
| C.C.M Mobile Car Services Ltd | Wholesale & retail | 2023 |
| C.D. Control & Instrumentation Limited | Construction | 2007 |
| C.D. Divine Services Limited | Health & social care | 2014 |
| C.D.M. Properties Limited | Real estate | 1986 |
| C.D.Trading Ltd | Manufacturing | 2014 |
| C.E.S Auto Transport Ltd | Transport & logistics | 2021 |
| C.G.Murray & SON Limited | Wholesale & retail | 1960 |
| C.H Pint Limited | Hospitality | 2025 |
| C.H. Filing Limited | Administrative & support | 2008 |
| C.H. Latham, the Baker, Limited | Manufacturing | 1987 |
| C.H.Sausage Co.Limited | Manufacturing | 1967 |
| C.Harrison Windows Ltd | Construction | 2024 |
| C.I.Williams Construction Ltd | Construction | 2025 |
| C.J. Plumbing and Heating (MCR) Ltd | Manufacturing | 2020 |
| C.J.H Accounting Limited | Professional & scientific | 2023 |
| C.M. Fashions (Leeds) Limited | Wholesale & retail | 1987 |
| C.N. Air-Mach Limited | Manufacturing | 1985 |
| C.O.S. Recruitment Limited | Administrative & support | 1987 |
| C.Ossai Healthcare Ltd | Health & social care | 2026 |
| C.P.Sanders Associates Limited | Professional & scientific | 2013 |
| C.R.M. Contracts Ltd | Construction | 2007 |
| C.Rreseller Limited | Wholesale & retail | 2026 |
| C.S. Fire Ltd | Construction | 2018 |
| C.S.Projects UK Limited | Energy | 2009 |
| C.S.Solutions 1999 Ltd | Construction | 2026 |
| C.Saycell & SON Limited | Construction | 1981 |
| C.T.E.M. Fashion Collective Limited | Education | 2025 |
| C.Traffs Ltd | Water & waste | 2026 |
| C.V.M Consultancy Limited | Professional & scientific | 2020 |
| C1 Brothers Limited | Hospitality | 2017 |
| C1 Estates Ltd | Real estate | 2024 |
| C15 Solutions Limited | Financial services | 2022 |
| C2 Collective Limited | Wholesale & retail | 2025 |
| C2 NA Limited | Wholesale & retail | 2020 |
| C24 Property Limited | Real estate | 2025 |
| C2C Consulting Services Ltd | Professional & scientific | 2022 |
| C3 Group Holdings Limited | Financial services | 2026 |