| Campertec Glass Ltd | Wholesale & retail | 2026 |
| Camping KIT Hire Ltd | Administrative & support | 2026 |
| Campro Investment Limited | Health & social care | 2023 |
| Campus Accommodation (Leicester) Limited | Real estate | 1998 |
| Campus Management Development Limited | Professional & scientific | 2013 |
| Campus Vision Limited | Health & social care | 2007 |
| Candeez Ltd | Wholesale & retail | 2026 |
| Candidate Search Ltd | Administrative & support | 2024 |
| Candle Events and Management Ltd | Professional & scientific | 2024 |
| Candoo Packaging Limited | Manufacturing | 2009 |
| Candy Arts CIC | Information & communication | 2010 |
| Candy Crew ( Leic) Ltd | Wholesale & retail | 2025 |
| Candyland Packaging Ltd | Administrative & support | 2021 |
| Candys Property Ltd | Real estate | 2024 |
| Canjo Ltd | Hospitality | 2017 |
| Canlas Ic-Care Limited | Health & social care | 2020 |
| Canlee Consultants Ltd | Professional & scientific | 2022 |
| Canna Strategy Limited | Professional & scientific | 2021 |
| Canning Business Centre Limited | Transport & logistics | 2022 |
| Canning International Limited | Manufacturing | 2016 |
| Canning Town Collection Limited | Real estate | 2020 |
| Cannock OP Limited | Wholesale & retail | 2026 |
| Cannock Outlet Shopping Limited | Wholesale & retail | 2021 |
| Cannolio Media Ltd | Information & communication | 2025 |
| Canon Motors Limited | Wholesale & retail | 2024 |
| Canopy Growers Ltd | Agriculture & fishing | 2026 |
| Canopy Hair Ltd | Wholesale & retail | 2023 |
| Canserv (UK) Ltd | Wholesale & retail | 2011 |
| Canterbury Evolutions Limited | Administrative & support | 2025 |
| Canto LAB Kitchen Ltd | Hospitality | 2025 |
| Canton Canton Limited | Hospitality | 2025 |
| Cantrell Stores Ltd | Wholesale & retail | 2016 |
| Canvas Gaming Ltd | Information & communication | 2021 |
| Canview Limited | Real estate | 2009 |
| Canwalk Ltd | Wholesale & retail | 2025 |
| Canyon Star Properties Limited | Real estate | 2016 |
| Canzone Leisure Limited | Wholesale & retail | 2019 |
| CAP Midland Housing Ltd | Real estate | 2025 |
| Capara Investments Limited | Construction | 2024 |
| Caparica Apparel Ltd | Wholesale & retail | 2017 |
| Capgem Investments Limited | Real estate | 2020 |
| Capgem Spines Ltd | Administrative & support | 2016 |
| Capheaton Value Ltd | Hospitality | 2014 |
| Capital a Investments Ltd | Financial services | 2021 |
| Capital Chem Ltd | Health & social care | 2010 |
| Capital Conquest Ltd | Wholesale & retail | 2024 |
| Capital Estate Agents Ltd | Real estate | 2022 |
| Capital Furniture Limited | Wholesale & retail | 2013 |
| Capital Lease London Ltd | Real estate | 2025 |
| Capital Mindset Academy Ltd | Education | 2025 |
| Capital One Fashion Ltd | Manufacturing | 2015 |
| Capital Warehouse Ltd | Wholesale & retail | 2021 |
| Capitel C Ltd | Wholesale & retail | 2005 |
| Capperi Limited | Hospitality | 2015 |
| Cappumaccino Ltd | Information & communication | 2023 |
| Capricorn Polished Limited | Administrative & support | 2025 |
| Capstone Axis Limited | Professional & scientific | 2025 |
| Capstone Cars Ltd | Transport & logistics | 2019 |
| Captain COD and Chips Limited | Hospitality | 2025 |
| Captain Foods Limited | Hospitality | 2024 |
| Captain Zimbabwe Ltd | Health & social care | 2025 |
| Captains Coaches Ltd | Administrative & support | 2019 |
| Capture Live Ltd | Information & communication | 2021 |
| Car Bodyshop (Leic) Ltd | Wholesale & retail | 2006 |
| Car City Leicester Limited | Wholesale & retail | 2026 |
| Car Clinic Leicester Limited | Wholesale & retail | 2016 |
| Car Dock Ltd | Wholesale & retail | 2022 |
| Car Palace Ltd | Wholesale & retail | 2021 |
| Car Parts Centre (Leicester) Limited | Wholesale & retail | 2018 |
| Car Parts Centre Group Ltd | Wholesale & retail | 2025 |
| Car Remaps Ltd | Wholesale & retail | 2025 |
| Car Shops Limited | Wholesale & retail | 2005 |
| Car Valeting Leicester Ltd | Wholesale & retail | 2024 |
| Car Wash Wigston Ltd | Wholesale & retail | 2026 |
| Car-Ease Ltd | Administrative & support | 2023 |
| CAR2CODE Ltd | Wholesale & retail | 2020 |
| Cara Devine Limited | Real estate | 2018 |
| Caracool Ltd | Construction | 2023 |
| Caramela Ltd | Professional & scientific | 2026 |
| Caratela Optics Limited | Health & social care | 2025 |
| Caratella + Partners Ltd | Professional & scientific | 2021 |
| Caratella Estates Limited | Real estate | 2013 |
| Caravelli Hair Design Ltd | Other services | 2018 |
| Caravelli Inn Ltd | Hospitality | 2017 |
| Caravelli Restaurant Ltd | Hospitality | 2017 |
| Carberry Willow Ltd | Wholesale & retail | 2024 |
| Carbide Fortwell RCF Limited | Construction | 2020 |
| Carbide Properties Limited | Construction | 2014 |
| Carbide Properties Trustee Limited | Administrative & support | 2024 |
| Carbide Witney Fortwell Limited | Construction | 2020 |
| Carbon Architecture Limited | Information & communication | 2009 |
| Carbon Fabrications (Leicester) Limited | Manufacturing | 2009 |
| Carbon GAS and Plumbing Ltd | Construction | 2024 |
| Carbon Point Connections Ltd | Energy | 2021 |
| Carbon Point EV Solutions Ltd | Construction | 2021 |
| Carbon Point Limited | Professional & scientific | 2010 |
| Carbon Upcycling Technologies UK Ltd | Manufacturing | 2021 |
| CARBON107 Ltd | Construction | 2024 |
| CARBUYER123 Limited | Wholesale & retail | 2019 |
| Carcadia Ltd | Administrative & support | 2025 |