| Bakeaway Takeaway Ltd | Hospitality | 2024 |
| Baker Signature Properties Ltd | Real estate | 2025 |
| Balan Transporter Limited | Transport & logistics | 2018 |
| BAM Telecoms Ltd | Information & communication | 2022 |
| Bankers Draft Limited | Hospitality | 2025 |
| Banner Advantage Limited | Administrative & support | 2020 |
| Banner Business Solutions Limited | Administrative & support | 1989 |
| Banner Group Limited | Administrative & support | 2005 |
| BARE3 Ltd | Wholesale & retail | 2025 |
| Barna Food Ltd | Hospitality | 2026 |
| Barnes Caterers Limited | Hospitality | 2015 |
| Barnes Properties (Yorkshire) Limited | Construction | 2006 |
| Barnes Properties Europe Limited | Hospitality | 1999 |
| Base Hire Delivery Ltd | Transport & logistics | 2025 |
| BAY2 Auto Customs Ltd | Wholesale & retail | 2020 |
| Beantech Consulting Ltd | Information & communication | 2025 |
| Beauty by Aldona Ltd | Wholesale & retail | 2022 |
| Begg Investments Limited | Financial services | 2025 |
| Bell Ecommerce Trading Limited | Wholesale & retail | 2025 |
| Bell Lighting Limited | Extraterritorial | 2024 |
| Bella Rosa HMW Ltd | Hospitality | 2025 |
| Benjamin Plimmer Delivery Ltd | Transport & logistics | 2026 |
| Betan Holdings Limited | Financial services | 2025 |
| Betan Ltd | Construction | 2024 |
| Betan Testing Limited | Construction | 2025 |
| Beth Mcnichol Translations Limited | Professional & scientific | 2018 |
| Better Living Construction Ltd | Construction | 2017 |
| Beula Limited | Health & social care | 2025 |
| Big Red Viking Company Limited | Information & communication | 2016 |
| Birkwood Limited | Transport & logistics | 2007 |
| Birkwood Taverns Limited | Hospitality | 2013 |
| Biro Services Ltd | Transport & logistics | 2015 |
| Black Truck Ltd | Transport & logistics | 2017 |
| Blackburn Industries Ltd | Real estate | 2022 |
| Blossom Training and Devlopment CIC | Education | 2022 |
| Bluecloudbird Limited | Wholesale & retail | 2025 |
| Bofitnormanton Limited | Arts & recreation | 2025 |
| Bond Management Limited | Transport & logistics | 2015 |
| Bond UK Limited | Financial services | 2005 |
| Bowmart Ltd | Manufacturing | 2024 |
| BPI Asset Advisory Ltd | Wholesale & retail | 2018 |
| Brand Builder Holdings Ltd | Manufacturing | 2025 |
| Brands 4 Schools Ltd | Professional & scientific | 2020 |
| Brewers Haulage Ltd | Transport & logistics | 2012 |
| British Electric Lamps Limited | Manufacturing | 1920 |
| Brook & Sons Brickwork Ltd | Construction | 2023 |
| BSP Hydraulics Holding Limited | Financial services | 2024 |
| BSP Hydraulics Limited | Manufacturing | 2002 |
| Buckthorne Transport Ltd | Transport & logistics | 2026 |
| Bully Rend Ltd | Construction | 2018 |
| Burnt Oaks (Management) Limited | Households | 2021 |
| Business Enjoyment Ltd | Professional & scientific | 2015 |
| Business Office Supplies Limited | Wholesale & retail | 2003 |
| Butler & Holmes Hospitality Ltd | Hospitality | 2026 |
| Buybuycar (Wakefield) Ltd | Wholesale & retail | 2023 |
| Byrom Solutions Limited | Hospitality | 2015 |
| C Hudson Civil Engineering Ltd | Construction | 2017 |
| C J Ellis Ltd | Transport & logistics | 2014 |
| Cabello Salon Limited | Other services | 2022 |
| Cal-Tonnes Ltd | Transport & logistics | 2018 |
| Calder Lettings Ltd | Real estate | 2023 |
| Cardwell Building Ltd | Construction | 2016 |
| Cardwell Homes Ltd | Real estate | 2016 |
| Caring Folk Limited | Professional & scientific | 2018 |
| Carswell Scaf Ltd | Construction | 2026 |
| Carter CS Plastering Limited | Construction | 2026 |
| Cash Express UK Limited | Real estate | 2017 |
| Caspian Grill and Cafe Ltd | Hospitality | 2019 |
| Castleford Caravan Storage Limited | Administrative & support | 2016 |
| Castlegrounds Limited | Health & social care | 1983 |
| Cchun 888 Ltd | Hospitality | 2021 |
| Central Access Limited | Extraterritorial | 1998 |
| Chapman Brothers Ltd | Wholesale & retail | 2025 |
| Chilli Pepper (Wakefield) Ltd | Hospitality | 2022 |
| Choppy Toffs Ltd | Real estate | 2008 |
| Chris Moran Design Limited | Information & communication | 2017 |
| Chris North Properties Limited | Real estate | 2009 |
| Church View Farm Management Company Ltd | Households | 2025 |
| Circular Polymers Limited | Wholesale & retail | 2017 |
| City App Ltd | Wholesale & retail | 2020 |
| Cjdm Holdings Limited | Administrative & support | 2020 |
| CK Normanton Properties Ltd | Real estate | 2017 |
| Claren Developments Ltd | Construction | 2023 |
| Clayton Canines Limited | Real estate | 2025 |
| Clean and Preen Limited | Administrative & support | 2017 |
| Clean PAK Limited | Water & waste | 2012 |
| Clean Wright FM Ltd | Administrative & support | 2022 |
| Cleaneco Group Limited | Financial services | 2019 |
| Cleantank Limited | Water & waste | 2010 |
| Cloud Crafter Ltd | Wholesale & retail | 2023 |
| Codegb Ltd | Information & communication | 2013 |
| Colin Payne Services Limited | Wholesale & retail | 2019 |
| Collins Utility Services Ltd | Construction | 2023 |
| Columbus Venture Ltd | Financial services | 2015 |
| Community Strands CIC | Health & social care | 2026 |
| Company Benefits Consultations Limited | Financial services | 2019 |
| Condurache Logistics Ltd | Transport & logistics | 2013 |
| Copia Recruitment Ltd | Administrative & support | 2025 |
| Costache Trans Limited | Transport & logistics | 2016 |
| Costin Catrina Ltd | Transport & logistics | 2023 |