| Close Male Grooming Ltd | Other services | 2009 |
| Clothing by Oliver Limited | Wholesale & retail | 2021 |
| Cloud Xperts Limited | Information & communication | 2022 |
| Club Class Travel Limited | Transport & logistics | 2009 |
| CM People Partner Ltd | Professional & scientific | 2023 |
| CMC Litigation Services Ltd | Professional & scientific | 2019 |
| CMS Property Services NW Ltd | Construction | 2026 |
| Cmuk Consulting Limited | Health & social care | 2025 |
| CNI Northwich Limited | Professional & scientific | 2012 |
| Coach House Coffee Ltd | Manufacturing | 2026 |
| Coaching Colosseum Ltd | Education | 2024 |
| Cock O Budworth (Great Budworth) Ltd | Hospitality | 2026 |
| Code and More LLP | | 2017 |
| Codhe Labs Limited | Information & communication | 2025 |
| Codyblak Limited | Wholesale & retail | 2025 |
| Coghlan Financial Planning Ltd | Financial services | 2025 |
| Cohesiveness Limited | Information & communication | 2023 |
| Colette Mcintyre Ltd | Professional & scientific | 2021 |
| Collegeland Ltd | Administrative & support | 2017 |
| Colliery Narrow Boat Co. Limited | Manufacturing | 1981 |
| Colour and CUT Limited | Other services | 2026 |
| Comave UK Ltd | Professional & scientific | 2023 |
| Combat Cleaning NW Ltd | Administrative & support | 2018 |
| Combined Mortgage and Protection Advice Ltd | Financial services | 2023 |
| Comer Landscapes Ltd | Administrative & support | 1996 |
| Comhar Group Ltd | Professional & scientific | 2026 |
| Commercial Operator Advisory Limited | Professional & scientific | 2026 |
| Commscare Group Limited | Information & communication | 2002 |
| Compare the Wholesaler Limited | Other services | 2014 |
| Compass Capital Limited | Wholesale & retail | 2021 |
| Compliance and Risk Support Limited | Professional & scientific | 2025 |
| Compuboss Limited | Information & communication | 2008 |
| Concepts D7B Limited | Professional & scientific | 2024 |
| Condate Architectural Limited | Professional & scientific | 2023 |
| Condensation Mould Solutions Ltd | Manufacturing | 2022 |
| Connect Safety Services Ltd | Administrative & support | 2013 |
| Connect Safety Services Training Ltd | Education | 2020 |
| Consensus Property Ltd | Real estate | 1986 |
| Constructpc Ltd | Wholesale & retail | 2026 |
| Consultimus Limited | Information & communication | 2021 |
| Consumer Legal Limited | Financial services | 2015 |
| Containerised Process Plant Limited | Manufacturing | 1998 |
| Contract Business Analysis Limited | Information & communication | 2015 |
| Contribly Ltd | Information & communication | 2016 |
| Contribute Solutions Limited | Information & communication | 2017 |
| Cool Developments Limited | Construction | 2007 |
| Cool Partnership Limited | Construction | 2007 |
| Cool TAN Limited | Other services | 2010 |
| Coolbox Limited | Information & communication | 2016 |
| Cooperklin Limited | Real estate | 2025 |
| Coopers Capital Ltd | Wholesale & retail | 2020 |
| Copeman Media Ltd | Information & communication | 2015 |
| Copley Square (Chadderton) Limited | Construction | 2003 |
| Copley Square (Oldham) Limited | Construction | 2003 |
| Copley Square Limited | Construction | 2003 |
| Core Engineering and Fabrications Limited | Construction | 2016 |
| Core People Solutions Ltd | Administrative & support | 2025 |
| Core Skills Training Centre Limited | Education | 2026 |
| Coreyolive Limited | Professional & scientific | 2023 |
| Corkills Northwich Limited | Wholesale & retail | 2007 |
| Cormack Energy Watch Limited | Professional & scientific | 2008 |
| Cornerstone Advisory Limited | Professional & scientific | 2018 |
| Corporate Resilience Limited | Professional & scientific | 2022 |
| Cosgrove Building & Civil Engineering Contractors Ltd. | Construction | 1986 |
| Cosgrove Groundworks North West Limited | Construction | 2021 |
| Cosmic Solutions UK Ltd | Information & communication | 2020 |
| Cotswold Covers Limited | Administrative & support | 2003 |
| Coulby Conduct (Northwich) Ltd. | Real estate | 1996 |
| Counterpoint Promotions Limited | Administrative & support | 2001 |
| Countrywide North West Limited | Administrative & support | 2005 |
| Covert Conversions Ltd | Manufacturing | 2025 |
| Cowperstone Limited | Professional & scientific | 2011 |
| Craft NOT Cr@P Ltd | Wholesale & retail | 2025 |
| Cransley School Limited | Education | 1977 |
| Crate Academy Limited | Education | 2025 |
| Crate Cheshire Limited | Other services | 2020 |
| Crate Cheshire Macclesfield Limited | Other services | 2023 |
| Crate Cheshire Northwich Limited | Other services | 2025 |
| Crate Knutsford Limited | Other services | 2025 |
| Crate Midlands Limited | Other services | 2026 |
| Crawford Farms Limited | Agriculture & fishing | 1997 |
| Craydella Ltd | Real estate | 2023 |
| Create Learning Trust | Education | 2018 |
| Create Ovate Limited | Wholesale & retail | 2004 |
| Creation Coffee Limited | Wholesale & retail | 2020 |
| Creative Claw Limited | Information & communication | 2024 |
| Creative Frenzy Ltd | Professional & scientific | 2007 |
| Creative Joinery Specialists Limited | Construction | 2016 |
| Creative Solutions (NW) Ltd | Information & communication | 2018 |
| Credit Claim Assist Limited | Financial services | 2008 |
| Creedy Technology Ltd | Professional & scientific | 2019 |
| Crestvolt Ltd | Construction | 2025 |
| Crewe BID Company Ltd | Administrative & support | 2024 |
| Cribs & Nests Ltd | Real estate | 2023 |
| Cristian's Care Ltd | Administrative & support | 2019 |
| Crls Nominees Limited | Real estate | 2006 |
| Croatian Fine Wines Limited | Wholesale & retail | 2011 |
| Cross Keys Beds Limited | Wholesale & retail | 2006 |
| Crossleyconsultancy & Research Ltd | Professional & scientific | 2023 |
| CRS Accountancy Limited | Professional & scientific | 2020 |