| Broadstairs English Centre Limited | Education | 2009 |
| Broadstairs Films Ltd | Information & communication | 2013 |
| Broadstairs Folk Week | Administrative & support | 2002 |
| Broadstairs Food Festival CIC | Other services | 2009 |
| Broadstairs Hand Car Wash Ltd | Other services | 2021 |
| Broadstairs Harbour and Seafront Community Interest Company | Other services | 2019 |
| Broadstairs Plumbing & Heating Kent Ltd | Administrative & support | 2011 |
| Broadstairs Property Maintenance LLP | | 2019 |
| Broadstairs Town Shed | Other services | 2014 |
| Broadstairs Wayfinders Ltd | Professional & scientific | 2022 |
| Bromfelde Limited | Real estate | 1986 |
| Bromley Solutions Ltd | Professional & scientific | 2015 |
| Browns Custom Trimming Ltd | Other services | 2017 |
| Browns Trimming Ltd | Wholesale & retail | 2017 |
| BS Makeup and Hair Ltd | Arts & recreation | 2024 |
| BSL Kent Limited | Professional & scientific | 2007 |
| BUB Electrical Limited | Construction | 2014 |
| Buff RE Ltd | Financial services | 2025 |
| Bugle and Co Ltd | Wholesale & retail | 2009 |
| Building Plastics 4 U Limited | Manufacturing | 2009 |
| Bunnyhug Ltd | Information & communication | 2019 |
| Bunting Sunia Enterprise Limited | Health & social care | 2018 |
| Burgeonton Academy Limited | Education | 2024 |
| Bushay for Music Limited | Information & communication | 2013 |
| Business Planner UK Ltd | Professional & scientific | 2011 |
| By...Sp Ltd | Wholesale & retail | 2009 |
| Bymb Limited | Other services | 2020 |
| C Status Ltd | Wholesale & retail | 2016 |
| C&I Dispute Services Ltd | Professional & scientific | 2019 |
| C-Techniken Consulting Ltd | Other services | 2018 |
| C.L.E Products Ltd | Wholesale & retail | 2025 |
| Cabin Cafe ST Peters Ltd | Hospitality | 2018 |
| Caffeine Inc Ltd | Hospitality | 2025 |
| Callao Housing Consultancy Ltd | Professional & scientific | 2012 |
| Callis Court Management Company Limited | Extraterritorial | 2003 |
| Cambridgeshire Forklift Training Limited | Extraterritorial | 2024 |
| Campion ST Peters Limited | Hospitality | 2014 |
| Canterbury Physiotherapy Ltd | Health & social care | 2011 |
| Canterbury Wealth Management Limited | Financial services | 2020 |
| Carben Developments Limited | Construction | 2016 |
| Carepartners Group Limited | Health & social care | 2019 |
| Carey Group Holdings Ltd | Financial services | 2025 |
| Carey's Transport Ltd | Transport & logistics | 2016 |
| Cariad TV Limited | Information & communication | 2022 |
| Cariss (ICT) Limited | Information & communication | 2010 |
| Carlton Avenue (25/25A/27/27A) Management Company Limited | Households | 2018 |
| Carpentry Works Contractors Limited | Construction | 2022 |
| Carpentry Works Limited | Construction | 2020 |
| Carpet Heaven (S.E) Limited | Wholesale & retail | 2014 |
| Cars in Kent Limited | Wholesale & retail | 2018 |
| Casper Works Ltd. | Construction | 2026 |
| Castle GAY Freehold Limited | Real estate | 2012 |
| Castle View Apartments Freehold Ltd | Real estate | 2023 |
| Cavendish Mansions RTM Company Limited | Households | 2017 |
| CCH Build Holdings Limited | Financial services | 2026 |
| Ce&Ar Ltd | Education | 2021 |
| CEC Limited | Households | 1982 |
| Celal Limited | Hospitality | 2019 |
| CEP Group Limited | Financial services | 2026 |
| Certain Stars Ltd | Wholesale & retail | 2025 |
| Chamber Professional Consultants Ltd | Professional & scientific | 2015 |
| Chandler Wells Accountancy Limited | Professional & scientific | 2017 |
| Change of Scene | Education | 2007 |
| Change of Scene Education Services | Education | 2026 |
| Channas Vendos LLP | | 2026 |
| Chantler Gardner Ltd | Extraterritorial | 2020 |
| Chapel House Estate Ltd | Hospitality | 2021 |
| Chapter 12 Comics & Collectables Ltd | Wholesale & retail | 2015 |
| Chapter Three Partnership Limited | Financial services | 2025 |
| Charles Adam Furniture Ltd | Manufacturing | 2024 |
| Charles Moore Films Limited | Information & communication | 2026 |
| Charlotte Kent Personal Trainer Ltd | Arts & recreation | 2023 |
| CHC Products Limited | Wholesale & retail | 2025 |
| Cheetah Construction Ltd | Construction | 2015 |
| Cheviot Court Properties Limited | Extraterritorial | 2000 |
| CHI 8 Property Limited | Real estate | 2024 |
| Chiappinis Ltd | Hospitality | 2024 |
| Chiara Rimella Limited | Professional & scientific | 2025 |
| Chillout Campers Ltd | Administrative & support | 2021 |
| Chittim Electrical Contractors Limited | Construction | 2015 |
| Choicez Ltd | Real estate | 2017 |
| Chris Marson Limited | Financial services | 2009 |
| Christopher Dempsey Kitchens Limited | Construction | 2003 |
| Cinzia Musio Consultancy Limited | Professional & scientific | 2022 |
| Cisum Club Ltd | Information & communication | 2019 |
| Citi Property Investments Limited | Construction | 2019 |
| Cityzone Residents Management Limited | Households | 1986 |
| CJP Thursten Limited | Information & communication | 2019 |
| CL Holding Group Limited | Financial services | 2025 |
| CL Property Consultants Limited | Real estate | 2005 |
| Claraghatlea PR Limited | Professional & scientific | 2022 |
| Clarey's Chocolates Ltd | Manufacturing | 2024 |
| CLB Scaffolding Ltd | Construction | 2024 |
| Clean Line Laundry Limited | Other services | 2014 |
| Clean Slate Demolition Limited | Construction | 2019 |
| Clearpaths Wayfinders CIC | Education | 2024 |
| Cleveland Court RTM Company Limited | Households | 2005 |
| Clever Group Limited | Financial services | 2018 |
| Cleverdons Limited | Extraterritorial | 2023 |
| Clewco Limited | Wholesale & retail | 2011 |