| Better Services Group Ltd | Construction | 2024 |
| Beyond Design and Technology Ltd. | Professional & scientific | 2018 |
| Big Guys - French Fries Street Food Ltd | Other services | 2023 |
| BIM RYE Ltd | Hospitality | 2025 |
| Bizdev Academy Ltd | Information & communication | 2023 |
| Bizwiz Limited | Wholesale & retail | 2022 |
| BJL Motor Services Limited | Wholesale & retail | 2002 |
| Black Catt Ltd | Construction | 2015 |
| Black Iris Interiors Ltd | Administrative & support | 2022 |
| Bliss Associates Ltd | Professional & scientific | 2017 |
| Bloom & Prune Ltd | Other services | 2017 |
| Blue Rotor Ltd. | Professional & scientific | 2015 |
| BMS Electrical Contractors (Kent) LLP | | 2011 |
| BMS Holdings (S.E.) Ltd | Financial services | 2009 |
| BOB Donelan Consulting Limited | Administrative & support | 2018 |
| Bodiam Boating Station Ltd | Arts & recreation | 2012 |
| Boleyn Green Limited | Professional & scientific | 2011 |
| Boodle Retreats Ltd | Real estate | 2025 |
| Book My EPC Ltd | Construction | 2026 |
| Bored Bear Ltd | Manufacturing | 2025 |
| Born to Travel International Limited | Wholesale & retail | 2025 |
| Bostin Space Ltd | Transport & logistics | 2013 |
| Botanic Heaven Ltd | Wholesale & retail | 2025 |
| Bramble Welding Limited | Construction | 2003 |
| Brambles Treats Ltd | Manufacturing | 2026 |
| Brand JN Ltd | Hospitality | 2022 |
| Brandhut Media Limited | Manufacturing | 2023 |
| Brede Steam Engine Society | Arts & recreation | 1997 |
| Breightmet Estates Limited | Construction | 2022 |
| Bridgepoint Innovations Ltd | Information & communication | 2026 |
| Brightling Beauty Limited | Manufacturing | 2009 |
| Brighton Regency Routemaster Ltd | Transport & logistics | 2022 |
| Broad Oak (RYE) Kennels Limited | Other services | 2023 |
| Brooks Farm Ltd | Wholesale & retail | 2022 |
| Brush and Bramble Limited | Administrative & support | 2025 |
| BSJ Rail Services Ltd | Manufacturing | 2014 |
| BT Global Store Ltd | Wholesale & retail | 2025 |
| BTM Civils Ltd | Construction | 2019 |
| Bubbles & Buds Limited | Administrative & support | 2025 |
| Bulgarian Trans Holdings Limited | Transport & logistics | 2018 |
| Burry Gardens Management Limited | Households | 2020 |
| BV Timber Limited | Wholesale & retail | 2022 |
| Byzgen Global Limited | Other services | 2025 |
| C J Rose Limited | Manufacturing | 2002 |
| C.T. Strangeways Limited | Manufacturing | 1977 |
| Cake Club Ltd | Wholesale & retail | 2018 |
| Calendar Cleaning Ltd | Administrative & support | 2006 |
| Callington Estates Limited | Construction | 1982 |
| Camber Chippy Ltd | Hospitality | 2023 |
| Camber Collective Ltd | Wholesale & retail | 2021 |
| Camber Lettings Ltd | Real estate | 2019 |
| Campbell Property Renovation Ltd | Construction | 2025 |
| Capital Windows & Conservatories (South East) Limited | Construction | 2007 |
| Car Craft Holdings Limited | Wholesale & retail | 2019 |
| Carabelli Dent Ltd | Health & social care | 2024 |
| Care Signs Ltd | Administrative & support | 2017 |
| Carter's Mower Spares Ltd | Wholesale & retail | 2023 |
| Casa Camber Ltd | Hospitality | 2023 |
| Casaphoto Ltd | Professional & scientific | 2018 |
| Casualty Resources Limited | Health & social care | 2015 |
| Catapult Consulting Limited | Professional & scientific | 2008 |
| Ccbas Ltd | Wholesale & retail | 2020 |
| Cedar Close West Management Co. Ltd | Extraterritorial | 2019 |
| Cefrank UK Limited | Administrative & support | 2012 |
| Celebi Restaurant Limited | Hospitality | 2025 |
| Centru Limited | Wholesale & retail | 2000 |
| Centru Logistics Limited | Transport & logistics | 2024 |
| Centru Property Holdings Ltd | Real estate | 2021 |
| Cerberus Property LLP | | 2017 |
| Chalk Down Lime Limited | Manufacturing | 1997 |
| Chambers Financial Ltd | Financial services | 2024 |
| Changepro Ltd | Administrative & support | 2017 |
| Chapel Place (Northiam) Management Company Limited | Households | 2006 |
| Chapmans of RYE Limited | Wholesale & retail | 2014 |
| Charles Palmer Vineyards Limited | Manufacturing | 2023 |
| Chart CMS Ltd | Administrative & support | 2011 |
| Christoffer Ahlen Limited | Other services | 2016 |
| Cinque Ports Group Ltd | Hospitality | 2017 |
| Citadel Contracts Limited | Construction | 2015 |
| City and Suburban Services Limited | Administrative & support | 2017 |
| CJW Steam Limited | Manufacturing | 2007 |
| Clapson Investments Limited | Real estate | 2025 |
| Cliff Court Residents Association Limited | Real estate | 2000 |
| Cliff Court RYE Management Company Ltd | Real estate | 2024 |
| Coachers Ltd | Real estate | 1996 |
| Coast View Property Camber Ltd | Real estate | 2024 |
| Coast View Property Limited | Construction | 2017 |
| Coastal Chalets Ltd | Hospitality | 2022 |
| Coastal Property Restorations Ltd | Construction | 2019 |
| Coastguard Services Ltd | Construction | 2020 |
| Commerceworks Connect Ltd | Information & communication | 2019 |
| Commerceworks Technology Ltd | Information & communication | 2015 |
| Community Compost Solutions CIC | Administrative & support | 2023 |
| Compass Taxis Limited | Transport & logistics | 2020 |
| Compay Limited | Financial services | 1996 |
| Complete Electrical and Solar Solutions Ltd | Construction | 2025 |
| Complete Retirement Solutions LLP | | 2009 |
| Condor Unmanned Limited | Professional & scientific | 2025 |
| Contessa Lloyd Limited | Hospitality | 2024 |
| Coombe-Jones Property Ltd | Real estate | 2017 |