| Complexions 1988 by Anna Mary Enterprise Ltd | Wholesale & retail | 2025 |
| Complexions by Anna Mary Limited | Other services | 2025 |
| Compound Property Partners Ltd | Real estate | 2017 |
| Connaught Projects Limited | Professional & scientific | 2023 |
| Connect Northwest CIC | Arts & recreation | 2024 |
| Connected Counselling Space Ltd | Health & social care | 2025 |
| Conrose Limited | Wholesale & retail | 2006 |
| Conshuett Property Maintenance Limited | Administrative & support | 2007 |
| Conskog Limited | Manufacturing | 2010 |
| Constar Latam Limited | Professional & scientific | 2026 |
| Contact ED Limited | Extraterritorial | 2018 |
| Contactless Garage Limited | Wholesale & retail | 2025 |
| Container Monkeys Limited | Manufacturing | 2017 |
| Continex Logistics Ltd | Transport & logistics | 2018 |
| Contraxica Ltd | Professional & scientific | 2019 |
| Conway Medical Aesthetics Clinics Limited | Professional & scientific | 2016 |
| Cooke Plumbing & Heating Ltd | Construction | 2013 |
| Copper Lantern Ltd | Wholesale & retail | 2023 |
| Copper Services NW Ltd | Construction | 2024 |
| Corida Limited | Professional & scientific | 2003 |
| Cork Crane Hire Ltd | Administrative & support | 2012 |
| Cornerhouse Bar & Events Ltd | Hospitality | 2026 |
| Cornerstone Asset Finance Limited | Financial services | 2025 |
| Cornerstone Project Solutions Ltd | Professional & scientific | 2011 |
| Coroservices Limited | Wholesale & retail | 2018 |
| Courier Post Logistics Ltd | Transport & logistics | 2000 |
| Court HEY Auto Centre Limited | Wholesale & retail | 2023 |
| Courtvaule Ltd | Other services | 2019 |
| Covanor Limited | Professional & scientific | 1991 |
| COX & Tyrer Limited | Construction | 1978 |
| Cozy Corner Properties Ltd | Real estate | 2025 |
| CP Electrical and Security Systems Limited | Construction | 2019 |
| CP Heating Ltd | Construction | 2026 |
| CPD123 Ltd | Information & communication | 2023 |
| CPL Freight Limited | Transport & logistics | 2016 |
| CPL Group Limited | Transport & logistics | 2015 |
| CPP Orthopaedics Ltd | Health & social care | 2020 |
| Cranes & Lifting Ltd | Manufacturing | 2025 |
| Cranshaw Farm Estate Limited | Real estate | 2020 |
| Cream Curls Widnes Ltd | Hospitality | 2023 |
| Create Office Ltd | Wholesale & retail | 2017 |
| Creation Accounting Services Limited | Professional & scientific | 2023 |
| Creative AV Ltd | Construction | 2022 |
| Creative Players Limited | Other services | 2016 |
| Creative Property Consultants Ltd | Professional & scientific | 2007 |
| Creator Project Ltd | Information & communication | 2024 |
| Cresta's of Flint Limited | Wholesale & retail | 2015 |
| Croft Street Tyres & Exhausts Limited | Wholesale & retail | 2013 |
| Cronton Dental Practice Ltd | Health & social care | 2023 |
| Cronton Scaffolding Ltd | Construction | 2025 |
| Cronton Waffle and Dessert Ltd | Wholesale & retail | 2024 |
| Cropmind Limited | Professional & scientific | 2025 |
| Crosshill Property Partners Ltd | Real estate | 2019 |
| Crosswalk Clues Ltd | Arts & recreation | 2025 |
| Crown Electrical Engineering Ltd | Construction | 2010 |
| Crumpsall Smile Centre Ltd | Health & social care | 2025 |
| Cruse Services Limited | Wholesale & retail | 2025 |
| CSR Eclipse Ltd | Administrative & support | 2008 |
| CSS Granite Ltd | Manufacturing | 2013 |
| CT Joinery Plumbing & Maintenance Ltd | Construction | 2024 |
| Ctrl ALT AMD Consulting Limited | Professional & scientific | 2022 |
| CTS Software Ltd | Information & communication | 2025 |
| Cucina Dessert Ltd | Wholesale & retail | 2025 |
| Cuetips Media Limited | Arts & recreation | 2023 |
| Culcheth Developments Limited | Real estate | 2008 |
| Cult Constrictors Ltd | Agriculture & fishing | 2020 |
| Cultivate People Services Ltd | Professional & scientific | 2024 |
| Cumberknoll Limited | Construction | 1997 |
| Cumbria Healthcare Services Ltd | Health & social care | 2024 |
| Curry Cheshire Ltd | Hospitality | 2024 |
| Customsplus Services Limited | Information & communication | 2019 |
| Cutting Edge Hairdressing (UK) Limited | Other services | 2003 |
| CV Plant Limited | Administrative & support | 2012 |
| Cworth Limited | Administrative & support | 2014 |
| CY Flooring Production Limited | Manufacturing | 2023 |
| Cyclone Technologies Limited | Wholesale & retail | 2008 |
| D & E Construction (Northwest) Ltd | Construction | 2018 |
| D & G Autobody Limited | Wholesale & retail | 2018 |
| D & G Property Management Limited | Real estate | 2024 |
| D & L Properties (North West) Limited | Real estate | 2023 |
| D & M Property Lets Ltd | Real estate | 2025 |
| D & N Heating Ltd | Construction | 2023 |
| D Allan Civils Limited | Construction | 2019 |
| D L Ices Limited | Wholesale & retail | 2006 |
| D L S Driving Services Ltd | Administrative & support | 2016 |
| D P & H Limited | Construction | 2022 |
| D W H Motors Ltd | Wholesale & retail | 2004 |
| D&O Asset Management Limited | Real estate | 2023 |
| D'Lanor Cosmetics Ltd | Health & social care | 2024 |
| D.B.A Spedition Limited | Transport & logistics | 2024 |
| D.Evans.John Ltd | Transport & logistics | 2023 |
| D.O. Transport 22 Ltd | Transport & logistics | 2022 |
| D.T.D. Properties Ltd | Real estate | 2021 |
| DA Data Ltd | Professional & scientific | 2022 |
| Dags Property Investments Ltd | Real estate | 2026 |
| Daisy Chain Decluttering Ltd | Administrative & support | 2025 |
| Daisy Maisies Limited | Education | 2012 |
| DAL Electrical Services Ltd | Construction | 2018 |
| DAL Living Ltd | Real estate | 2021 |
| Daly & Wilde Ltd | Real estate | 2026 |