| Bainbridge Holdings Ltd | Financial services | 2023 |
| Bainbridge Hospitality Limited | Hospitality | 2014 |
| Bainbridge Provisions Ltd | Manufacturing | 2019 |
| Bajan Burger Co Ltd. | Hospitality | 2021 |
| BAK Friedrici Ltd | Real estate | 2021 |
| Bakalya Limited | Hospitality | 2019 |
| Bake IT Better Ltd | Education | 2021 |
| Baked by ME (Norfolk) Ltd | Hospitality | 2024 |
| Baker & Burrage Bespoke Kitchen's Ltd | Manufacturing | 2021 |
| Baker and King Building Services LLP | | 2007 |
| Baker Geophysical Ltd. | Professional & scientific | 2018 |
| Baker Street Financial Ltd | Financial services | 2026 |
| Baker Timm Property Holdings Limited | Real estate | 2017 |
| Bakkdoor Ltd | Wholesale & retail | 2023 |
| Baks Homes Limited | Real estate | 2025 |
| Baku Barbeque Limited | Hospitality | 2022 |
| Bala Chang Ltd | Manufacturing | 2019 |
| Balams Brickwork Ltd | Construction | 2023 |
| Balance Coffee Ltd | Wholesale & retail | 2022 |
| Balanced Financial Services Limited | Financial services | 2016 |
| Balbs Limited | Real estate | 2017 |
| Balchin Investments Limited | Real estate | 2020 |
| Baldguy Holdings Ltd | Professional & scientific | 2022 |
| Baldock Construction Limited | Construction | 2002 |
| Baldwin Skip Hire Ltd | Water & waste | 2003 |
| Baldwins Simla Grill Ltd | Hospitality | 2019 |
| Bale Retail Ltd | Wholesale & retail | 2024 |
| Balfour,Williamson & Co.Limited | Professional & scientific | 1930 |
| Balhaven Limited | Households | 1986 |
| Ball and Washbrook Limited | Administrative & support | 2010 |
| Ball Trading Limited | Wholesale & retail | 2017 |
| Ballet Makers Europe Limited | Wholesale & retail | 1998 |
| Ballet Train Limited | Education | 2003 |
| Balliford Limited | Professional & scientific | 2006 |
| Balluza Streams Ltd | Professional & scientific | 2025 |
| Balmec Limited | Manufacturing | 2017 |
| Balmorals London Limited | Wholesale & retail | 2012 |
| Balti Bites Stirchley Limited | Hospitality | 2024 |
| Balti HUT (Coventry) Limited | Hospitality | 2016 |
| Balti Pickle UK Limited | Hospitality | 2019 |
| Balti Tandoori Restaurant Limited | Hospitality | 2021 |
| Balto Barks Ltd | Professional & scientific | 2022 |
| Balu Solution Limited | Manufacturing | 2025 |
| Bamble Ltd | Health & social care | 2023 |
| Bamboo Wellness Ltd | Hospitality | 2018 |
| Bambusa Ltd | Manufacturing | 2016 |
| Bamdews Ltd | Health & social care | 2023 |
| Bamidele Productions Ltd | Information & communication | 2021 |
| Bamops Limited | Information & communication | 2023 |
| Banach Electrical Service Ltd | Construction | 2014 |
| Banan Properties Ltd | Real estate | 2024 |
| Banana Link Limited | Education | 1996 |
| Banchory Investments Limited | Financial services | 2019 |
| Bandbeast Limited | Other services | 2002 |
| Bandonhill Modern Ltd | Transport & logistics | 2015 |
| Bandwidth Technologies Limited | Information & communication | 2006 |
| Banester Build Ltd | Construction | 2018 |
| Bangbang Trading Limited | Hospitality | 2023 |
| Bangla Boujon Limited | Hospitality | 2018 |
| Bangla Catering Limited | Hospitality | 2024 |
| Banham Builders Limited | Construction | 2008 |
| Banham Farming Co Limited | Real estate | 1946 |
| Banham Farms Limited | Agriculture & fishing | 2015 |
| Banham Vehicle Services Limited | Manufacturing | 2002 |
| Banister Associates Limited | Administrative & support | 2008 |
| Banks-Dunnell Wealth Management Ltd | Financial services | 2012 |
| Bannock Holdings Ltd | Professional & scientific | 2017 |
| Bano Phool Balti Cuisine Ltd | Hospitality | 2002 |
| Banquet Cafe Limited | Hospitality | 2010 |
| Banqueting Hire Service Ltd | Administrative & support | 2007 |
| Banstead Property Limited | Real estate | 2024 |
| Banthorpe Walker Roofing Ltd | Construction | 2010 |
| BAO an Orientals Ltd | Hospitality | 2017 |
| Baobab Marketing Ltd | Professional & scientific | 2018 |
| Bar Vape Ltd | Wholesale & retail | 2017 |
| Baraka Mini Market Ltd | Wholesale & retail | 2022 |
| Baraka Store Norwich Ltd | Wholesale & retail | 2025 |
| Barakov Limited | Transport & logistics | 2017 |
| Barbary Lion Construction Ltd | Construction | 2022 |
| Barber Building Services Ltd | Construction | 2011 |
| Barber Derivatives Ltd | Information & communication | 2019 |
| Barber KIN Limited | Other services | 2018 |
| Barcar Group Ltd | Transport & logistics | 2017 |
| Barceline Limited | Information & communication | 2023 |
| Barcelinebabes Ltd | Manufacturing | 2025 |
| Barcelinemarketingmedia Ltd | Manufacturing | 2025 |
| Barco East Ltd | Hospitality | 2008 |
| Barco Leasing Limited | Real estate | 2018 |
| Barco Property Holdings Limited | Real estate | 2018 |
| Barconn Group Limited | Financial services | 2004 |
| Barconn Holdings Limited | Financial services | 2019 |
| Barconn Limited | Construction | 1999 |
| Barconn Trustees Limited | Administrative & support | 2023 |
| Bare Face Norwich Limited | Other services | 2022 |
| Bareen Limited | Other services | 2019 |
| Baregym Limited | Wholesale & retail | 2025 |
| Barford Hire Limited | Administrative & support | 1990 |
| Bargainelectronics Ltd | Wholesale & retail | 2025 |
| Barham Court (Gorleston) Management Company Limited | Households | 1991 |
| Bark Creative Limited | Information & communication | 2014 |