| Brit Security Services Limited | Wholesale & retail | 2016 |
| Britainpack Limited | Administrative & support | 2025 |
| Britaircon Limited | Manufacturing | 2025 |
| Britania Consultancy Ltd | Information & communication | 2024 |
| Britaniagate Limited | Real estate | 2021 |
| Britanic Limited | Real estate | 1998 |
| Britannia Academy Ltd | Professional & scientific | 2016 |
| Britannia Bridgehouse Ltd | Professional & scientific | 2019 |
| Britannia Carpets (Midlands) Ltd | Wholesale & retail | 2026 |
| Britannia Crest Ltd | Wholesale & retail | 2025 |
| Britannia Design & Print Limited | Extraterritorial | 2006 |
| Britannia Design and Printing Limited | Manufacturing | 2014 |
| Britannia Education & Culture Consultancy Ltd | Education | 2013 |
| Britannia Electrical and Air Conditioning Ltd. | Construction | 2024 |
| Britannia Facilities Management Limited | Transport & logistics | 2010 |
| Britannia Fish Bar (SH) Limited | Hospitality | 2020 |
| Britannia Foods Midlands Ltd | Hospitality | 2025 |
| Britannia Global Academy Ltd | Professional & scientific | 2011 |
| Britannia Hajj & Umrah Travel Limited | Administrative & support | 2014 |
| Britannia Homes Group Limited | Real estate | 2026 |
| Britannia Hose & Rubber Limited | Manufacturing | 1994 |
| Britannia Housing (Birmingham) Ltd | Real estate | 2019 |
| Britannia Jewellery Limited | Wholesale & retail | 2017 |
| Britannia Law Firm Ltd | Professional & scientific | 2024 |
| Britannia Lofts Limited | Real estate | 2020 |
| Britannia Sheet Metal Limited | | 1987 |
| Britannia Silver Limited | Other services | 2023 |
| Britanniashops Ltd | Wholesale & retail | 2024 |
| Britannic Finance Limited | Administrative & support | 1998 |
| Britannic Group Services Limited | Professional & scientific | 1987 |
| Britannic Money Investment Services Limited | Financial services | 1987 |
| Britasia TV Network Ltd | Information & communication | 2004 |
| Britbiz Amazon Ltd | Wholesale & retail | 2025 |
| Britcampus Limited | Education | 2025 |
| Britclean Services Ltd | Administrative & support | 2022 |
| Britco IT Solutions Limited | Wholesale & retail | 2014 |
| Britco News Ltd | Wholesale & retail | 2020 |
| Brite Horizon Ltd | Wholesale & retail | 2023 |
| Brite Star Services Ltd | Hospitality | 2025 |
| Brite-Polish Limited | Health & social care | 2010 |
| Brite-Uk Ltd | Education | 2024 |
| Britecrest Limited | Real estate | 2002 |
| Britelight Investments | Financial services | 2017 |
| Britemind Innovations Ltd | Administrative & support | 2020 |
| Briteo Construction Ltd | Construction | 2023 |
| Britepath Limited | Administrative & support | 2026 |
| Britesquad Ltd | Real estate | 2026 |
| Britestar Solutions Limited | Real estate | 2009 |
| Britfiler Ltd | Information & communication | 2025 |
| Britgroove Crew Ltd | Wholesale & retail | 2023 |
| Brithive Limited | Professional & scientific | 2025 |
| Britis Creative Institut | Education | 2022 |
| British & European City Developments Limited | Real estate | 1973 |
| British Allied Trades Federation | Other services | 1901 |
| British American Group Limited | Information & communication | 2006 |
| British and Irish Orthoptic Society | Other services | 1985 |
| British Association of Social Workers (the) | Other services | 1970 |
| British Deccan Community Ltd | Construction | 2024 |
| British Dietetic Association(The) | Other services | 1947 |
| British Home Enhancement Trade Association Ltd | Other services | 1989 |
| British Hovercraft Corporation Limited | Extraterritorial | 1913 |
| British Hub Ltd | Wholesale & retail | 2026 |
| British Independent Retailers Association Limited | Administrative & support | 2011 |
| British Lane Transport Ltd | Wholesale & retail | 2026 |
| British Pakistani Forum Limited | Health & social care | 2024 |
| British Pakistanis Legal Services Ltd | Information & communication | 2021 |
| British Portland Cement Association Limited (the) | Extraterritorial | 1924 |
| British Sealed Beams Limited | Professional & scientific | 1959 |
| British Shops and Stores Association Limited | Other services | 1991 |
| British Sjogren's Syndrome Association | Health & social care | 2003 |
| British Society for Antimicrobial Chemotherapy | Other services | 2002 |
| British Star Ltd | Wholesale & retail | 2019 |
| Britlearn AL Limited | Education | 2024 |
| Britmines Limited | Mining & quarrying | 2026 |
| Britnod LLP | | 2026 |
| Britpropserv Ltd | Real estate | 2019 |
| Brits Business Hub Ltd | Wholesale & retail | 2026 |
| Brits Buys Limited | Wholesale & retail | 2024 |
| Brits Food and Wine Ltd | Wholesale & retail | 2019 |
| Britsun Energy Ltd | Construction | 2025 |
| Britt Consultants Ltd | Education | 2020 |
| Britt Real Estates Ltd | Real estate | 2022 |
| Brittain Opticians Limited | Wholesale & retail | 2003 |
| Brittech Digital Solutions Ltd | Wholesale & retail | 2026 |
| Brittech Distribution Ltd | Wholesale & retail | 2025 |
| Britvibe Limited | Wholesale & retail | 2025 |
| Britvista Limited | Wholesale & retail | 2021 |
| Britwarm Insulations Ltd | Construction | 2023 |
| Britz Design and Print Ltd | Manufacturing | 2022 |
| Britzen Ltd | Wholesale & retail | 2026 |
| Brix One Ltd | Administrative & support | 2023 |
| Brixen Living Ltd | Real estate | 2025 |
| Brixstation Limited | Real estate | 2025 |
| BRK Care Holdings Limited | Financial services | 2022 |
| Brkc Estates Limited | Real estate | 2024 |
| BRM Investments Limited | Real estate | 2025 |
| BRM Legal Limited | Professional & scientific | 2009 |
| BRM Supply Ltd | Hospitality | 2020 |
| BRN Accountants Limited | Professional & scientific | 2014 |
| BRO Okes Housing Ltd | Real estate | 2026 |