| CAB Direct Canterbury Ltd | Transport & logistics | 2023 |
| CAB Direct Canterbury Taxi Ltd | Transport & logistics | 2025 |
| CAB LINE6 Ltd | Transport & logistics | 2013 |
| Cab&Co Ltd | Transport & logistics | 2021 |
| Cabco Canterbury Ltd | Transport & logistics | 2025 |
| Cabco Canterbury Taxi Ltd | Transport & logistics | 2025 |
| Cabco Garage Ltd | Wholesale & retail | 2023 |
| Cable Recycling DOT COM Limited | Manufacturing | 2015 |
| Cacek Ltd | Financial services | 2025 |
| Cacti High Ltd | Wholesale & retail | 2020 |
| Caddie Club Group Ltd | Information & communication | 2026 |
| Cadman Brothers Limited | Transport & logistics | 1996 |
| Cady Investments Ltd | Real estate | 2021 |
| Cafe DU Soleil Limited | Hospitality | 2010 |
| Cafe Mauresque Limited | Hospitality | 2003 |
| CAG Investments Limited | Hospitality | 2016 |
| Cain & Co Bookkeeping Services (UK) Limited | Professional & scientific | 2023 |
| Cain Brothers Limited | Real estate | 2021 |
| Cain's Amusements Limited | Arts & recreation | 2003 |
| Cakeboxx Technologies UK Ltd | Wholesale & retail | 2015 |
| Cakeishbymspayge Ltd | Manufacturing | 2025 |
| Cala Estate Group Ltd | Real estate | 2024 |
| Callus Holdings Ltd | Extraterritorial | 2024 |
| CAM Investments Limited | Administrative & support | 1921 |
| Cambridge & Oxford Associates Ltd | Construction | 2009 |
| Camden CBD and Seeds Limited | Wholesale & retail | 2017 |
| Cameron Lettings Limited | Real estate | 2002 |
| Camland Hythe Ltd | Construction | 2013 |
| Cammia Estates Land Ltd | Construction | 2023 |
| Camphos Therapeutics Limited | Professional & scientific | 2017 |
| Can-Do Property Services Limited | Wholesale & retail | 2010 |
| Canada Coach Company Ltd | Transport & logistics | 2023 |
| Cancare Home Services Limited | Health & social care | 2001 |
| Candour (Ashford) Limited | Construction | 2016 |
| Candyco Ltd | Other services | 2014 |
| Canefield Properties Limited | Real estate | 2022 |
| Canmarket Limited | Professional & scientific | 2010 |
| Cannon Children Services Limited | Health & social care | 2021 |
| Canny Vista Limited | Professional & scientific | 2025 |
| Canoe Wild Limited | Arts & recreation | 2012 |
| Canterbrew Ltd | Manufacturing | 2010 |
| Canterbury 1 Limited | Real estate | 2026 |
| Canterbury Acupuncture Limited | Other services | 2012 |
| Canterbury Ales Limited | Professional & scientific | 2007 |
| Canterbury Anaesthesia Solutions Limited | Health & social care | 2025 |
| Canterbury Bakery Ltd | Hospitality | 2015 |
| Canterbury Bears Limited | Administrative & support | 2012 |
| Canterbury Bidco Limited | Financial services | 2025 |
| Canterbury Black Horse Inn Ltd | Hospitality | 2018 |
| Canterbury Boiler Spares Ltd | Wholesale & retail | 2021 |
| Canterbury Building Services Limited | Construction | 2019 |
| Canterbury Building Solutions Ltd | Construction | 2019 |
| Canterbury CAB Company Ltd | Transport & logistics | 2023 |
| Canterbury Camera Centre Limited | Wholesale & retail | 2025 |
| Canterbury Cantata Trust | Arts & recreation | 2012 |
| Canterbury Car Centre Ltd | Wholesale & retail | 2014 |
| Canterbury Car Keys Ltd | Other services | 2026 |
| Canterbury Catering (Kent) Limited | Hospitality | 2017 |
| Canterbury Cathedral Trust Fund | Administrative & support | 2005 |
| Canterbury Christ Church University | Education | 2003 |
| Canterbury Christian Council Limited | Health & social care | 1969 |
| Canterbury City Gardening Ltd | Administrative & support | 2025 |
| Canterbury City Property Company Limited | Construction | 2017 |
| Canterbury City Scaffolding (SE) Ltd | Construction | 2022 |
| Canterbury City Show CIC | Administrative & support | 2024 |
| Canterbury Clocks and Curios Ltd | Wholesale & retail | 2015 |
| Canterbury Coffee Co Ltd | Hospitality | 2023 |
| Canterbury Combatives Ltd | Arts & recreation | 2021 |
| Canterbury Connected CIC | Other services | 2009 |
| Canterbury Construction (2016) Limited | Construction | 2016 |
| Canterbury Construction Limited | Construction | 2021 |
| Canterbury Diocesan Board of Finance | Administrative & support | 1916 |
| Canterbury Diocesan Enterprises Ltd | Real estate | 2008 |
| Canterbury Distillers Limited | Manufacturing | 2020 |
| Canterbury Drywall Services Ltd | Construction | 2023 |
| Canterbury Dyslexia Centre Limited | Education | 2012 |
| Canterbury Environment Company Limited | Water & waste | 2020 |
| Canterbury Executive Cars Ltd | Transport & logistics | 2024 |
| Canterbury Fieldsports Ltd | Wholesale & retail | 2026 |
| Canterbury Fine Art Ltd | Wholesale & retail | 2023 |
| Canterbury Fine Foods Ltd | Wholesale & retail | 2024 |
| Canterbury Fish Bar Limited | Hospitality | 2017 |
| Canterbury Gastroenterology Services Ltd | Health & social care | 2019 |
| Canterbury Golf Club Limited | Arts & recreation | 1927 |
| Canterbury Haemostasis and Thrombosis Ltd | Health & social care | 2019 |
| Canterbury HCW Ltd | Other services | 2017 |
| Canterbury Healthcare Ltd | Public administration | 2010 |
| Canterbury Heating Ltd | Construction | 2024 |
| Canterbury Historic River Tours Limited | Administrative & support | 2015 |
| Canterbury Historic Tours Limited | Administrative & support | 2016 |
| Canterbury Holdings Limited | Financial services | 2022 |
| Canterbury Horsebox Hire Ltd | Administrative & support | 2025 |
| Canterbury Housing Advice Centre | Health & social care | 1991 |
| Canterbury HR Limited | Administrative & support | 2012 |
| Canterbury Integrated Healthcare Limited | Health & social care | 2017 |
| Canterbury International Bible College Ltd | Education | 2008 |
| Canterbury Kitchen's Ltd | Manufacturing | 2024 |
| Canterbury Lane Convenience Store Ltd | Wholesale & retail | 2023 |
| Canterbury Lawn Tennis Club Trustees Limited(The) | Arts & recreation | 1965 |
| Canterbury Lifts Ltd | Construction | 2024 |