| Arjun Autolease Limited | Wholesale & retail | 2002 |
| Aropack Packaging Ltd | Wholesale & retail | 2016 |
| Ascend Fitness Limited | Wholesale & retail | 2019 |
| ASH Physiotherapy & Sports Injury Clinic Ltd | Health & social care | 2010 |
| Ashford Garage & Hydraulics Group Limited | Financial services | 2026 |
| Ashford Hydraulic Hoses Ltd | Manufacturing | 2012 |
| Ashford Leisure Trust. | Arts & recreation | 2004 |
| Ashford Parachute Club Limited | | 1978 |
| ASK Your Local Heating Specialists Ltd | Construction | 2024 |
| Aspect Management (Seabrook) Limited | Households | 2019 |
| Aspirias IBC Limited | Other services | 2021 |
| Astrid Stavro Design Ltd | Professional & scientific | 2023 |
| Atlantic Property Developements Limited | Construction | 2019 |
| Atlas Halal Wholesale Limited | Wholesale & retail | 2026 |
| Aunx Europe Limited | Other services | 2021 |
| Aurora Beheer Limited | Other services | 2023 |
| AVA Bridge Limited | Extraterritorial | 2022 |
| AVA Lifts Limited | Extraterritorial | 2022 |
| Avelec Limited | Manufacturing | 1989 |
| Avery Aesthetics UK Ltd | Health & social care | 2020 |
| Axis Land Surveying Limited | Administrative & support | 2000 |
| Axximum Services Limited | Other services | 2021 |
| B & D Specialist Cars Limited | Wholesale & retail | 2003 |
| B.M.V Alround Holding Limited | Other services | 2025 |
| B.M.V Alround Limited | Other services | 2025 |
| Back to Straight Ltd | Other services | 2010 |
| Backwaters Cruising Limited | Transport & logistics | 2017 |
| BADGER24 Ltd | Wholesale & retail | 2020 |
| Badgers Bridge LLP | | 2012 |
| Balanceability Medical Limited | Health & social care | 2023 |
| Bale-Pak Limited | Manufacturing | 2001 |
| Banoa Limited | Professional & scientific | 2011 |
| Banque House Management Co. Ltd | Households | 2015 |
| Barber Town Limited | Other services | 2025 |
| Bassett Property Services (Kent) Limited | Real estate | 2013 |
| Bayrle Limited | Professional & scientific | 2010 |
| BDB Kent Ltd | Real estate | 2026 |
| Beachhouse Landscaping Ltd | Administrative & support | 2026 |
| Beara Limited | Real estate | 2024 |
| Beaut London Ltd | Wholesale & retail | 2026 |
| Beautyform Medical Ltd | Wholesale & retail | 2018 |
| Beck Mobiles Limited | Wholesale & retail | 2023 |
| BEG Holding IBC Limited | Other services | 2023 |
| Bellerophontes Limited | Agriculture & fishing | 2017 |
| Bellhythe Limited | Hospitality | 2019 |
| Bench Consult Ltd | Professional & scientific | 2024 |
| Benchmark Performance Limited | Information & communication | 1998 |
| Benegeli Europe Limited | Other services | 2021 |
| Benz Nail Supply Ltd | Wholesale & retail | 2023 |
| Bestman Barbers Limited | Other services | 2023 |
| Bethink Coaching Ltd | Other services | 2017 |
| Betsy Clara and Southdowns Ltd | Health & social care | 1993 |
| Bidrio Limited | Professional & scientific | 2011 |
| Bien Etre Studio Limited | Arts & recreation | 2018 |
| Big Red Property Box Limited | Real estate | 2005 |
| Bigbolly Limited | Health & social care | 2020 |
| Birginia Group IBC Limited | Other services | 2025 |
| BKS Accounts Ltd | Professional & scientific | 2020 |
| Black Core Kent C.I.C. | Other services | 2025 |
| Blimeyai Limited | Information & communication | 2023 |
| Blossom Nashe Ltd | Public administration | 2026 |
| Blue Square Performance Ltd | Health & social care | 2023 |
| Bluerock Capital Europe Limited | Other services | 2020 |
| BOB Twells Consultancy Ltd | Education | 2016 |
| Bonverbis Consultancy Limited | Professional & scientific | 2008 |
| Boujee Cocktails Ltd | Manufacturing | 2024 |
| Bournemouth Gardens Management Company Limited | Real estate | 2004 |
| Bouw Roermond Beheer Limited | Other services | 2025 |
| Bouw Roermond Limited | Other services | 2025 |
| Bouw- EN Klusbedrijf Paul Timmerman Beheer Limited | Other services | 2025 |
| Bouw- EN Klusbedrijf Paul Timmerman Limited | Other services | 2025 |
| Bouwboard Beheer Limited | Other services | 2026 |
| Bouwboard Limited | Other services | 2026 |
| BP Bouw Limited | Other services | 2022 |
| BP Bouw Nederland Limited | Other services | 2022 |
| BP IBC Limited | Other services | 2022 |
| Brackentide Wines Ltd | Wholesale & retail | 2026 |
| Brand Heat & Flow Beheer Limited | Other services | 2025 |
| Brand Heat & Flow Limited | Other services | 2025 |
| Brax Groep Beheer Limited | Other services | 2025 |
| Brax Groep Limited | Other services | 2025 |
| BRD Catering Ltd | Hospitality | 2025 |
| Brengme Hospitality Limited | Other services | 2025 |
| Briarwood (Hythe) Limited | Real estate | 2015 |
| Brickhouse Europe Beheer Limited | Other services | 2025 |
| Brickhouse Europe Limited | Other services | 2025 |
| Bridge Capital Beheer Limited | Other services | 2025 |
| Bridge Capital Europe Limited | Other services | 2025 |
| Bridges Care and Education Limited | Education | 2020 |
| Brise Marine Retreats Ltd | Real estate | 2025 |
| Brisket and Barrel Limited | Hospitality | 2016 |
| Broadviews Residents Association Limited | Real estate | 1991 |
| Brockhill Park Performing Arts College | Education | 2011 |
| Brocks Fireworks Limited | Arts & recreation | 2012 |
| Brocks Pyrotechnics Limited | Wholesale & retail | 2022 |
| Bromo Group UK Limited | Other services | 2023 |
| BTS Europe Holding Limited | Professional & scientific | 2017 |
| BTS Europe Recruitment Limited | Professional & scientific | 2017 |
| Buko Ltd | Wholesale & retail | 2021 |
| Bushman Consultancy Ltd | Administrative & support | 2020 |