| Buncey Transport Limited | Transport & logistics | 2013 |
| Bungee Fitness Limited | Real estate | 2012 |
| Burford Engineering Services Ltd | Professional & scientific | 2021 |
| Burgess Chiropractic Ltd | Health & social care | 2016 |
| Burgundy Construction Services Ltd | Construction | 2013 |
| Burham Estates Limited | Other services | 1987 |
| Burham Research Station Ltd | Professional & scientific | 2015 |
| Burion Limited | Construction | 2024 |
| Burlington Berries Limited | Agriculture & fishing | 2011 |
| Burlow Homes Ltd | Real estate | 2023 |
| Burnside Court Management Limited | Households | 2017 |
| Burnstat Ltd | Hospitality | 2016 |
| Burrington Estates (Bere Alston) Limited | Construction | 2019 |
| Burt’S Bagels Ltd | Hospitality | 2026 |
| Business Automated Limited | Professional & scientific | 2022 |
| Business Decisions Limited | Professional & scientific | 1994 |
| Business Optimisation Limited | Professional & scientific | 2013 |
| Business Outsource Ltd | Professional & scientific | 2017 |
| Business Requirement Solutions Limited | Professional & scientific | 2006 |
| Business Rollers Ltd | Construction | 2020 |
| Busy Bodies Limited | Education | 2014 |
| Busy Bucket Ltd | Wholesale & retail | 2026 |
| Butcher Birkby Ltd | Construction | 2021 |
| Butler & Gold Repair Specialists Services Ltd | Administrative & support | 2014 |
| Butler's Glove Cleaners Ltd | Administrative & support | 2026 |
| Butn Ltd | Administrative & support | 2025 |
| Buttress R&D Ltd | Information & communication | 2023 |
| Buyerempire Limited | Wholesale & retail | 2012 |
| Buymorecar.Co.Uk Limited | Other services | 2009 |
| BUZDEA-TRANSPORT23 Ltd | Transport & logistics | 2019 |
| Buzz Property Limited | Real estate | 2013 |
| BW and D Wingrove Limited | Administrative & support | 2005 |
| BW Books Limited | Professional & scientific | 2019 |
| BW Keys Auto Locksmith Ltd | Wholesale & retail | 2025 |
| BWC Consult Ltd | Information & communication | 2023 |
| BWD Service Ltd | Information & communication | 2014 |
| Bwic Ltd | Construction | 2014 |
| BWP Consulting Ltd | Extraterritorial | 2007 |
| BY TJ Beauty Limited | Other services | 2023 |
| Bydavid Trans Ltd | Transport & logistics | 2025 |
| BYE BYE Admin Ltd | Information & communication | 2026 |
| Byegraine Ltd | Wholesale & retail | 2022 |
| Byrne&Sons Construction Ltd | Construction | 2025 |
| Byron Blended Education Ltd | Education | 2020 |
| BZ Construct Ltd | Construction | 2024 |
| C & a Landscapes Limited | Administrative & support | 2003 |
| C & a Supplies Limited | Wholesale & retail | 1999 |
| C & D Properties (Maidstone) Limited | Real estate | 2020 |
| C & L External Ltd | Wholesale & retail | 2019 |
| C & T Connell Properties Limited | Real estate | 2017 |
| C and C Projects Limited | Other services | 2004 |
| C B Read Agricultural Solutions Ltd | Agriculture & fishing | 2024 |
| C Barista Limited | Hospitality | 2023 |
| C Connell (Farrier) Limited | Administrative & support | 2005 |
| C H Electrical (Kent) Ltd | Construction | 2018 |
| C H P Design Limited | Arts & recreation | 1985 |
| C Highsted Limited | Professional & scientific | 2021 |
| C J Motorsport Consulting Limited | Arts & recreation | 2005 |
| C J Sandell and Co Limited | Professional & scientific | 2007 |
| C O Direct Auto Trade Limited | Wholesale & retail | 2026 |
| C P L Corp Limited | Other services | 2014 |
| C R Foreman & SON Properties Limited | Real estate | 2018 |
| C R S Multiservices Limited | | 1986 |
| C W W Limited | Professional & scientific | 2003 |
| C&B Trailer Services Ltd | Manufacturing | 2024 |
| C&C Signature Cars Ltd | Wholesale & retail | 2026 |
| C&M Payroll Limited | Professional & scientific | 2026 |
| C'Deda Ltd | Information & communication | 2018 |
| C.A.G.E Electrical Services Ltd | Construction | 2013 |
| C.A.M. Property Limited | Construction | 2008 |
| C.B.S. (Office Equipment) Limited | | 1977 |
| C.F. Smith Wealth Management Ltd. | Financial services | 2017 |
| C.J. Driscoll & Sons Ltd | Construction | 2000 |
| C.K. Electrical (Kent) Limited | Construction | 2003 |
| C.M.Whiffen Ltd | Professional & scientific | 2020 |
| C.P. Wisher Limited | Manufacturing | 2013 |
| C.R. Irvine Plastering Limited | Construction | 1995 |
| C.R.&S Floor Designs Ltd | Construction | 2025 |
| C.S.A 1947 Ltd | Transport & logistics | 2025 |
| C.V.L. Haulage Ltd | Transport & logistics | 2023 |
| C.V.M Bianca Ltd | Transport & logistics | 2023 |
| C.W. Surfacing Ltd. | Construction | 1997 |
| C3 Building and Landscaping Limited | Construction | 2018 |
| C4TAX Ltd | Professional & scientific | 2007 |
| C60 Construction Services Limited | Professional & scientific | 2017 |
| CA England and Wales | Other services | 2009 |
| CA Improvements Ltd | Construction | 2025 |
| Cable Consulting International Limited | Professional & scientific | 2001 |
| Cable Consulting Limited | Professional & scientific | 2008 |
| Cactus Plant Ltd | Wholesale & retail | 2022 |
| Cadscapes Limited | Professional & scientific | 2003 |
| Cafe Beck Ltd | Hospitality | 2023 |
| Cafe Delicious Ltd | Hospitality | 2022 |
| Cafe Mocha Limited | Hospitality | 2024 |
| Cafe Rose (Maidstone) Ltd | Hospitality | 2022 |
| Cafe Sheerness Limited | Hospitality | 2008 |
| Cafe Terrys Limited | Hospitality | 2024 |
| Cafe Troika Limited | Hospitality | 2011 |
| CAH Investments Limited | Financial services | 2015 |
| Cairnlink Management Services Limited | Professional & scientific | 2012 |