| Brealy Management Company Limited | Households | 1986 |
| Brecknock Bros Ltd | Hospitality | 2025 |
| Brian Golton Associates Ltd | Professional & scientific | 2024 |
| Bricbush Properties Ltd | Real estate | 2022 |
| Brightbits Development Ltd | Information & communication | 2021 |
| Brilliant Electrical Ltd | Construction | 2020 |
| Broadley Property Ltd | Real estate | 2008 |
| Broadlink Petroleum Development Company Limited | Construction | 2009 |
| Broadway Animal Clinic Limited | Professional & scientific | 2002 |
| Broadway Property Management Ltd | Real estate | 2026 |
| Broadway Stays Ltd | Hospitality | 2025 |
| Brokenlogo Limited | Professional & scientific | 2016 |
| Brook Sparkle Project CIC | Professional & scientific | 2024 |
| Broomfield Herne Bay Ltd | Wholesale & retail | 2011 |
| Brown & Bear Limited | Construction | 2025 |
| Brown Roofing (Kent) Ltd | Construction | 2002 |
| Browns Plumbing & Heating Limited | Construction | 2016 |
| Bsrdpt Estates Ltd | Real estate | 2019 |
| Bsrdpt Ltd | Financial services | 2019 |
| Buckingham Residence Management Ltd | Real estate | 2024 |
| Bufferone Company Limited | Construction | 2015 |
| Build UP Construction Ltd | Construction | 2016 |
| Bulldog Properties (Kent) Limited | Real estate | 2011 |
| Bulleeon Limited | Wholesale & retail | 2026 |
| Bushells Ltd | Construction | 2021 |
| Business Boby Ltd | Transport & logistics | 2023 |
| Business DAC Ltd | Transport & logistics | 2025 |
| Butler Leaf Limited | Professional & scientific | 2022 |
| BVG Holdings Limited | Professional & scientific | 2026 |
| BVG Property Limited | Professional & scientific | 2026 |
| Byron Grove Ltd | Professional & scientific | 2016 |
| C & C Carpentry Limited | Construction | 2003 |
| C & M Plant Hire Limited | Administrative & support | 2024 |
| C + D Construction (SE) Limited | Construction | 2004 |
| C Barnes Limited | Professional & scientific | 2024 |
| C C Works Ltd | Professional & scientific | 2004 |
| C Hobbs Herne Bay Ltd | Administrative & support | 2017 |
| C Lamp Davies Limited | Other services | 2018 |
| C Sharp Accounts Limited | Professional & scientific | 2026 |
| C&A General Contractor Ltd | Construction | 2025 |
| C&L Finefficiency Limited | Financial services | 2022 |
| C. Lloyd Carpentry Contractors Limited | Construction | 2003 |
| C. Riches Properties Limited | Real estate | 2003 |
| Cabco Herne Bay Taxi Ltd | Transport & logistics | 2025 |
| Cable & Wire Technical Services Ltd | Manufacturing | 1992 |
| Cable Giants Ltd | Water & waste | 2019 |
| Cafe Toast Herne Bay Ltd | Hospitality | 2023 |
| Cake Bay Ltd | Manufacturing | 2024 |
| Calder Ceramics Limited | Construction | 2013 |
| Caley Properties Ltd | Real estate | 2012 |
| Callemax Haulage Ltd | Transport & logistics | 2006 |
| Calmwater Collective Ltd | Health & social care | 2026 |
| CAM Heating and Plumbing Limited | Construction | 2015 |
| Camilco Services Limited | Households | 2012 |
| Canon Gate Court (Ramsgate) PMC Ltd | Households | 2019 |
| Canterbury Catering Hire Limited | Administrative & support | 2023 |
| Canterbury District Volunteer Centre Ltd | Administrative & support | 2001 |
| Carmens Community CIC | Health & social care | 2026 |
| Carolina Community CIC | Health & social care | 2025 |
| Carpentry Building Contracts Limited | Construction | 2021 |
| Cartaplan Systems Limited | Extraterritorial | 2012 |
| Casey James Mortgages Ltd | Financial services | 2024 |
| Cashford Plumbing & Heating Ltd | Construction | 2014 |
| Castle Construction (Kent) Limited | Construction | 2019 |
| Cater-Connectuk Ltd | Wholesale & retail | 2024 |
| Cathcart Buildings & Renovations Limited | Construction | 2017 |
| Cavalier Goods Ltd | Wholesale & retail | 2026 |
| CC Kent Limited | Construction | 2008 |
| CCG Europe Limited | Administrative & support | 2020 |
| CCK Support Ltd | Health & social care | 2012 |
| CDY3R Limited | Real estate | 2022 |
| Ceas and Fireguard Ltd | Construction | 2024 |
| Ceden Network Ltd | Information & communication | 2025 |
| Cellar Buoys Ltd. | Administrative & support | 2020 |
| CGC Leisure Ltd | Arts & recreation | 2024 |
| CGC Sports Ltd | Arts & recreation | 2009 |
| CGJ Electrical Ltd | Construction | 2016 |
| CH11MP Ltd | Arts & recreation | 2026 |
| Chakra Yoga Limited | Other services | 2018 |
| Chalet Namika UK Ltd. | Hospitality | 2016 |
| Chance-Store London Ltd | Wholesale & retail | 2020 |
| Chanza Chanzo Ltd | Information & communication | 2013 |
| Chapter Twenty Two Payroll Limited | Professional & scientific | 2022 |
| Charles Bates (Kent) Limited | Construction | 1957 |
| Charles Knowles Limited | Construction | 1948 |
| Charlie Smith London Ltd | Wholesale & retail | 2007 |
| Chartwell Land Agents Limited | Construction | 2010 |
| Checkmate Consultancy Solutions Ltd | Professional & scientific | 2025 |
| Chedelec Limited | Construction | 2023 |
| Chequered Past Limited | Wholesale & retail | 2016 |
| Cherries & Chillies Ltd | Manufacturing | 2026 |
| China Chef Kent Limited | Hospitality | 2024 |
| Chows Bay Limited | Hospitality | 2021 |
| Chris French Ltd | Financial services | 2017 |
| Chris Rains Electrical Services Limited | Construction | 2013 |
| Chris Riches Limited | Wholesale & retail | 2001 |
| Chris Wren Collectibles Ltd | Wholesale & retail | 2019 |
| Chrisaliz Management Services Ltd | Administrative & support | 2001 |
| Christian Court Management Company Limited | Professional & scientific | 1975 |
| Chronicles & Calculations Ltd | Wholesale & retail | 2024 |