| Coleorton Stores Limited | Wholesale & retail | 2015 |
| Coletul CU Bunatati Ltd | Transport & logistics | 2025 |
| Collett Marketing & Coaching Ltd | Professional & scientific | 2022 |
| Collins Collective Limited | Hospitality | 2026 |
| Colorscan Imaging Products Limited | Manufacturing | 1981 |
| Comex Ltd | Professional & scientific | 2024 |
| Comfort Homecare Midlands Ltd | Health & social care | 2023 |
| Commercial Strategy and Business Support Limited | Professional & scientific | 2008 |
| Commlyncx C.I.C. | Hospitality | 2016 |
| Community Games CIC | Education | 2019 |
| Community Lyncx Community Interest Company | Other services | 2016 |
| Compassionate Compass Psychological Services Ltd | Professional & scientific | 2024 |
| Complete Construction & Maintenance (Midlands) Ltd | Construction | 2019 |
| Complete Loft Solutions Ltd | Construction | 2026 |
| Computer Lifeline Ltd | Wholesale & retail | 2013 |
| Coms Trade Ltd | Wholesale & retail | 2025 |
| Concept Clarity a V Ltd | Construction | 2018 |
| Concept Clarity Limited | Professional & scientific | 2009 |
| Concept System Solutions Ltd | Information & communication | 2020 |
| Concert Audio Communications Limited | Manufacturing | 1997 |
| Conco Global Ltd | Information & communication | 2021 |
| Confident Canine Ltd | Agriculture & fishing | 2024 |
| Connect Canvassing Ltd | Professional & scientific | 2020 |
| Connect Design Management Ltd | Professional & scientific | 2020 |
| Conservatories & Windows Centre Limited | Manufacturing | 2018 |
| Consolidated Charity of Burton Upon Trent Limited | Other services | 2026 |
| Consultology Ltd | Professional & scientific | 2025 |
| Contracool Home Solutions Ltd | Other services | 2015 |
| Contract Construction Group Limited | Construction | 2024 |
| Contract Construction Limited | Construction | 2024 |
| Controlled Systems Limited | Information & communication | 1992 |
| Controlrite Limited | Construction | 2005 |
| Conveyor House Limited | Manufacturing | 2006 |
| Cook With Crook Ltd | Professional & scientific | 2025 |
| Cooper Brothers (Property) Limited | Construction | 1971 |
| Cooper Holdings (Tamworth and Burton) Limited | Professional & scientific | 2007 |
| Copper Creative House Ltd | Professional & scientific | 2026 |
| Copper Goose Consulting Limited | Professional & scientific | 2014 |
| Copper Leaf Therapy Ltd | Health & social care | 2021 |
| Copperoak Developments Ltd | Construction | 2018 |
| Corbett & Sinclair Limited | Agriculture & fishing | 1984 |
| Core Groundworks & Construction Limited | Construction | 2019 |
| Cork Services Ltd | Construction | 2019 |
| Corner Gold Group Ltd | Real estate | 2023 |
| Cornerhouse Promotions Limited | Manufacturing | 1999 |
| Cornerstone and Canopy Ltd | Construction | 2026 |
| Cornmill Consortium Limited | Households | 1996 |
| Corporate & Business Vehicle Contracts Limited | Transport & logistics | 1998 |
| Cosmic Education Limited | Administrative & support | 2012 |
| Cosmic People Limited | Administrative & support | 2012 |
| Cosmic Vision Studios Ltd | Information & communication | 2020 |
| Cotton Haulage Limited | Transport & logistics | 2020 |
| Cotton Quay Consultancy Limited | Information & communication | 2023 |
| Cotton Quay Investments Limited | Real estate | 2021 |
| Country Services Limited | Manufacturing | 2006 |
| Courtney’S Competitions Limited | Wholesale & retail | 2025 |
| Coyleconnect Limited | Information & communication | 2024 |
| Coyte Furnishings Limited | Wholesale & retail | 1973 |
| Cozy Keys Property Services Ltd | Real estate | 2025 |
| CP Delivery Ltd | Transport & logistics | 2021 |
| CPC Express Ltd | Education | 2024 |
| CPD Composite Services Limited | Construction | 2012 |
| Cptp Enterprises Ltd | Education | 2025 |
| CR Brickwork (Midlands) Ltd | Construction | 2023 |
| CR Emporium Ltd | Wholesale & retail | 2024 |
| Craftytriocreations Limited | Wholesale & retail | 2025 |
| Cragmoor Collect Limited | Professional & scientific | 2015 |
| Crakemarsh Developments Limited | Construction | 2018 |
| Cravelichfield Ltd | Hospitality | 2020 |
| Crazy Ladies Cleaning Limited | Administrative & support | 2023 |
| Crazyblox Ltd | Information & communication | 2019 |
| CRD Logistics Limited | Transport & logistics | 2024 |
| Creative Agency Limited | Professional & scientific | 2021 |
| Creative Crayons Group Ltd | Hospitality | 2024 |
| Creative Foods Europe Holdings Limited | Manufacturing | 2013 |
| Creative Foods Europe Limited | Manufacturing | 2005 |
| Creative Prints Ltd | Professional & scientific | 2025 |
| Creative Vape Ltd | Wholesale & retail | 2019 |
| Creative Wear & Embroidery Limited | Wholesale & retail | 2014 |
| Creative Word PR Limited | Professional & scientific | 2020 |
| Creator Hub Ltd | Professional & scientific | 2023 |
| Cresco Heating Services Ltd | Construction | 2015 |
| Cresco Management Ltd | Professional & scientific | 2019 |
| Cresco Property Services Ltd | Construction | 2015 |
| Crest Systems Limited | Professional & scientific | 2023 |
| Crew Lettings Limited | Real estate | 2015 |
| Crew Property Ltd | Construction | 2022 |
| Crew Property Services Ltd | Real estate | 2019 |
| Cricket for Girls Ltd | Arts & recreation | 2017 |
| Cristian Gheorgheoiu Limited | Professional & scientific | 2014 |
| Critz Ltd | Wholesale & retail | 2025 |
| Croboride Engineering Limited | Manufacturing | 1988 |
| Croboride Holdings BOT Limited | Financial services | 2022 |
| Crockford Ltd | Extraterritorial | 2011 |
| Crofts Catering Limited | Hospitality | 2018 |
| Cromford Cars Ltd | Wholesale & retail | 2023 |
| Croshaw Catering Consultancy Limited | Professional & scientific | 2023 |
| Crown at Yoxall Ltd | Hospitality | 2026 |
| Crown Events Hospitality Ltd | Hospitality | 2023 |
| Crownhills Hinckley Ltd | Health & social care | 2024 |