| AYV Media Empire Limited | Professional & scientific | 2023 |
| Azora Group Limited | Financial services | 2025 |
| B&B Brothers Property Investments Limited | Real estate | 2024 |
| B&K Phones Limited | Wholesale & retail | 2019 |
| B.I.L.L. (Holdings) Limited | Financial services | 2014 |
| B.I.L.L. Limited | Administrative & support | 1998 |
| Backup Healthlink Services Limited | Health & social care | 2025 |
| Backup Properties Limited | Wholesale & retail | 2022 |
| Badani Limited | Real estate | 2009 |
| Bafom Limited | Health & social care | 2023 |
| Baive Productions Limited | Information & communication | 2023 |
| Barbican Property Maintenance Solution Ltd | Manufacturing | 2020 |
| Bark Lane Limited | Wholesale & retail | 2025 |
| Bayley Building Limited | Construction | 2018 |
| Bayley Properties Limited | Real estate | 2022 |
| Bdcompany Ltd | Professional & scientific | 2024 |
| BE Majestic Entertainment Ltd | Arts & recreation | 2025 |
| Beatriz Services Limited | Hospitality | 2024 |
| Beefs & Babes Gym Limited | Arts & recreation | 2009 |
| Belgrade Enterprise Ltd | Construction | 2022 |
| Belsizecrafts Ltd | Wholesale & retail | 2023 |
| Benjamin Laurel Resources Ltd | Information & communication | 2018 |
| Benmir Limited | Transport & logistics | 2025 |
| Between the Sheets Ltd | Wholesale & retail | 2020 |
| Beyond Limited | Extraterritorial | 2016 |
| BIM XEI London Limited | Wholesale & retail | 2026 |
| Biofuels Solutions Ltd | Water & waste | 2021 |
| Blizzard Consulting Ltd | Information & communication | 2017 |
| Blue BOW Properties Ltd | Real estate | 2025 |
| Blue BOW Research and Consultancy Ltd | Information & communication | 2020 |
| Blue Lakes Consulting Limited | Professional & scientific | 2018 |
| Blue Phoenix Publishing Ltd | Extraterritorial | 2023 |
| Bluebow Technologies Ltd | Information & communication | 2025 |
| Bluecrest Care Ltd | Health & social care | 2026 |
| Bluelakes Enterprises Limited | Real estate | 2022 |
| Blueprint Sports Agency Limited | Professional & scientific | 2025 |
| Bluewater Property Management Limited | Real estate | 2000 |
| Bm&Tj Ltd | Health & social care | 2023 |
| Body Mysl Ltd | Wholesale & retail | 2020 |
| Bonnimac Limited | Administrative & support | 2017 |
| Borelli Tea Holdings Limited | Financial services | 1976 |
| Bounce Force Group Ltd | Administrative & support | 2026 |
| Brangiai Ltd | Transport & logistics | 2024 |
| Bridge Optics Ltd | Professional & scientific | 2025 |
| Brighter Futures Social Investment C.I.C. | Education | 2019 |
| Britbites Ltd | Hospitality | 2025 |
| Bronze Superior Ltd | Health & social care | 2016 |
| Budhdeo Support Services Limited | Agriculture & fishing | 2025 |
| Budster Properties Ltd | Real estate | 2016 |
| Buildq Ltd | Wholesale & retail | 2025 |
| Bumblebee Creative Ltd | Professional & scientific | 2025 |
| Buntom Health Care Ltd | Health & social care | 2023 |
| BY T'S Enterprise Ltd | Other services | 2023 |
| By-Bizzle Holdings Limited | Wholesale & retail | 2015 |
| Bybecky. Ltd | Other services | 2026 |
| C Clarke ALL Aspects Interiors Ltd | Construction | 2025 |
| C M S Installations Ltd | Construction | 2018 |
| Callseat Limited | Transport & logistics | 1973 |
| Camada Limited | Administrative & support | 2012 |
| Cambrea Consulting Limited | Information & communication | 2016 |
| Canterbury Thai Limited | Hospitality | 2024 |
| Capital Build and Management Ltd | Construction | 2020 |
| Carestar Recruitment Agency Limited | Health & social care | 2023 |
| Carlton Avenue Management Company Limited | Households | 2015 |
| Casa Heaven Limited | Real estate | 2023 |
| Cassie Beaute Lounge Limited | Other services | 2022 |
| Catalyst Technology Solutions Limited | Information & communication | 2025 |
| CBD Electrics Ltd | Construction | 2019 |
| CH Advisors Ltd | Professional & scientific | 2026 |
| Chanel Services Limited | Hospitality | 2025 |
| Chapter 25 Aesthetics Ltd | Other services | 2026 |
| Chase Hammond Ltd | Other services | 2012 |
| Ched Services Limited | Professional & scientific | 2025 |
| Cheesecake ET AL Ltd | Hospitality | 2021 |
| Childs Electrical Ltd | Construction | 2024 |
| Chris Gaimster Consulting Services Limited | Professional & scientific | 2018 |
| Christabel Property Limited | Real estate | 2024 |
| Christbabe Limited | Health & social care | 2015 |
| Christine and Christophe Ltd | Other services | 2013 |
| Christine's Fads Limited | Wholesale & retail | 2019 |
| Christopher Cowley and Associates Limited | Construction | 2015 |
| Church Brain Limited | Information & communication | 2025 |
| Cisa Solutions Ltd | Professional & scientific | 2025 |
| City Central Cleaning Limited | Administrative & support | 2007 |
| CJC Contractors Limited | Construction | 1965 |
| CJC Painting Contractors Limited | Extraterritorial | 2013 |
| CLD Building & Construction Ltd | Construction | 2025 |
| Clean UP Crew Services Ltd | Administrative & support | 2025 |
| CLICKS2BRICKS Trading Ltd | Wholesale & retail | 2022 |
| CLM Autocare Limited | Wholesale & retail | 2025 |
| CLN Glam Beauty Lounge Limited | Hospitality | 2024 |
| Cloud Insight Tech Limited | Information & communication | 2020 |
| CM Home Investments Limited | Real estate | 2025 |
| CNC Steel Solutions Ltd | Construction | 2023 |
| Co-Steel Engineering Ltd | Administrative & support | 2016 |
| Coal Associates Ltd | Professional & scientific | 2005 |
| Cobham Terrace Tenants Association Limited | Professional & scientific | 2007 |
| College Place Freehold Company Limited | Households | 2019 |
| College Place RTM Company Limited | Households | 2018 |
| Combosoft Ltd | Information & communication | 2020 |