| Bowcliffe Wealth Management Limited | Administrative & support | 2015 |
| Braai & Bite Limited | Hospitality | 2024 |
| Bradwaste Limited | Professional & scientific | 1942 |
| Brae Croft Health Partners Ltd | Professional & scientific | 2026 |
| Bramble Build Ltd | Real estate | 2019 |
| Bramham Accounting Limited | Professional & scientific | 2025 |
| Bramham Convenience Store Limited | Wholesale & retail | 2022 |
| Bramham Property Services Ltd | Construction | 2021 |
| Brammela Ltd | Professional & scientific | 2026 |
| BRANDON321 Ltd | Professional & scientific | 2026 |
| Branton Partnerships Ltd | Real estate | 2024 |
| Brass Monkey Health Ltd | Manufacturing | 2021 |
| Brays of Wetherby Limited | Professional & scientific | 2014 |
| Brct Trading Ltd | Wholesale & retail | 2021 |
| Breakthrough Arts Ltd | Professional & scientific | 2012 |
| Breezes Deli Limited | Hospitality | 2023 |
| Brett Norton Limited | Professional & scientific | 2015 |
| Brewood Travel Limited | Administrative & support | 1993 |
| Brian G Hancock Limited | Construction | 2006 |
| Bridge Capital Limited | Real estate | 2026 |
| Bright Ideas Electrical Limited | Wholesale & retail | 2014 |
| Brighter Life Chiropractic Limited | Health & social care | 2013 |
| Brightwater Swim School Limited | Education | 2014 |
| Brigstone Properties Ltd | Real estate | 2022 |
| Brimal Limited | Financial services | 1964 |
| Britalitez Limited | Wholesale & retail | 2013 |
| Brook Babes Ltd | Education | 2003 |
| Brown & Wills Recruitment Ltd | Administrative & support | 2014 |
| BRU Group Cover Limited | Information & communication | 2022 |
| Bruce Martin Consultancy Limited | Professional & scientific | 2025 |
| Brunswick Executive Search Limited | Administrative & support | 2008 |
| BS Booth Ltd | Information & communication | 2026 |
| BTO Contracts Ltd | Manufacturing | 2014 |
| BTR Dean Beck Limited | Extraterritorial | 2019 |
| BTR Rodley Limited | Extraterritorial | 2021 |
| Buchanan Wood Limited | Information & communication | 2014 |
| Buckle Marketing Ltd | Professional & scientific | 2020 |
| Buckley Jewellery Limited | Wholesale & retail | 1989 |
| Buildlogic Limited | Construction | 2012 |
| Built Rite CV Limited | Administrative & support | 2025 |
| Bula Marketer Limited | Professional & scientific | 2017 |
| Bunka Holdings Ltd | Financial services | 2026 |
| Burn the Boats Entertainment Limited | Information & communication | 2023 |
| Burns Way Management CO(NO.3) Ltd | Households | 2022 |
| Burns Way Management CO(NO.4) Ltd | Households | 2022 |
| Burns Way Management CO(NO.5) Ltd | Households | 2022 |
| Burns Way Management Company (NO.2) Limited | Households | 1994 |
| Burograph Ltd | Professional & scientific | 2022 |
| Bushells Accountants 2018 Limited | Professional & scientific | 2018 |
| Business Voip Solutions Limited | Information & communication | 2018 |
| Buttercrumble Limited | Professional & scientific | 2019 |
| Butterfly Drinks Limited | Wholesale & retail | 2023 |
| Buywell Interiors Limited | Wholesale & retail | 2007 |
| Byron & Reed Consulting Ltd | Professional & scientific | 2022 |
| Byteminds Limited | Information & communication | 2021 |
| C & G Interiors Limited | Wholesale & retail | 2009 |
| C & S Football Management Ltd | Arts & recreation | 2013 |
| C H Render Limited | Wholesale & retail | 2025 |
| C'Est Chocolat Ltd | Wholesale & retail | 2025 |
| C'Est Chocolat Wetherby Ltd | Wholesale & retail | 2017 |
| C-Fit Business Performance Ltd | Professional & scientific | 2019 |
| C. Wylde & SON Limited | Wholesale & retail | 1966 |
| C.N.B. Investments Limited | Financial services | 2020 |
| C.N.B. Property Ltd | Real estate | 2017 |
| C.P.L Precision Engineering Limited | Manufacturing | 2004 |
| Caddick (City One) Limited | Real estate | 2014 |
| Caddick (Farington) Limited | Real estate | 2017 |
| Caddick (Fife Road) Limited | Extraterritorial | 2014 |
| Caddick (Knottingley) Limited | Extraterritorial | 2006 |
| Caddick (London Residential) Limited | Professional & scientific | 2012 |
| Caddick (Penarth Street) Limited | Real estate | 2021 |
| Caddick City Living (Leeds) Limited | Real estate | 2020 |
| Caddick City Living Limited | Real estate | 2020 |
| Caddick Developments (North) Limited | Real estate | 2014 |
| Caddick Land Limited | Real estate | 2017 |
| Caddick Logistics Limited | Real estate | 2020 |
| Caddick Renewables Limited | Energy | 2012 |
| Caddick Residential Limited | Real estate | 2016 |
| Cadillac Jukebox Limited | Information & communication | 2007 |
| Cafe Country Kitchen Limited | Hospitality | 2013 |
| Cake + Ice Cream Ltd | Professional & scientific | 2020 |
| Callaghan Development Consultancy (Investments) Limited | Real estate | 2022 |
| Callaghan Development Consultancy Limited | Professional & scientific | 2017 |
| Calopus Solutions Limited | Information & communication | 2012 |
| CAM Pinder Limited | Information & communication | 2026 |
| Camellia Care Group Limited | Professional & scientific | 2016 |
| Camellia CNC & Laser Cutting Ltd | Manufacturing | 2021 |
| Cameron Pink Limited | Administrative & support | 2015 |
| Cameron Pink Property Limited | Real estate | 2019 |
| Camfitz Ltd | Information & communication | 2025 |
| Campuspr Limited | Professional & scientific | 2002 |
| Canter Capital Limited | Financial services | 2023 |
| Capelli & Company Limited | Other services | 2011 |
| Capelli Hair Collective Limited | Other services | 2026 |
| Capps Helm Properties Limited | Real estate | 2015 |
| Captiva Trading Limited | Wholesale & retail | 2025 |
| Captivate Education Limited | Education | 2018 |
| Carclinic (Harrogate) Ltd | Administrative & support | 2007 |
| Carlisle and Carlisle Limited | Professional & scientific | 2018 |
| Carlshead Limited | Education | 2004 |