| Axel 123 Limited | Wholesale & retail | 2023 |
| Axisware Limited | Information & communication | 2010 |
| Ayckbourn Chapters Management Company Limited | Extraterritorial | 1990 |
| Azzaro Ltd | Hospitality | 2023 |
| B & B Global Consulting Ltd | Professional & scientific | 2026 |
| B & J Developments (Scarborough) Limited | Construction | 2003 |
| B Coles Builders Limited | Construction | 2020 |
| B&S Beds Ltd | Wholesale & retail | 2025 |
| B&S Wholesale Ltd | Wholesale & retail | 2025 |
| B&T Property Ltd | Real estate | 2025 |
| BA Site Engineering Limited | Professional & scientific | 2015 |
| Baaz Barbers Ltd | Other services | 2021 |
| Babrahdev Ltd | Information & communication | 2019 |
| Babram Ltd | Wholesale & retail | 2024 |
| Back in Play Ltd | Wholesale & retail | 2026 |
| Backhouse Building/Plastering Ltd | Construction | 2024 |
| Baker Bull Properties Limited | Real estate | 2025 |
| Baker Printers Ltd | Professional & scientific | 2003 |
| Baker Woodall Commercial Limited | Real estate | 2015 |
| Baker Woodall Limited | Real estate | 2015 |
| Bala Asset Management Ltd | Construction | 2024 |
| Bala Holdings Ltd | Financial services | 2025 |
| Bala QS38 Ltd | Real estate | 2025 |
| Ballymongan Ltd | Financial services | 2025 |
| Baloch Medicare Ltd | Health & social care | 2012 |
| Bamfords Scarborough Limited | Hospitality | 2024 |
| Bamm Plumbing and Heating Ltd | Construction | 2022 |
| Bang (Scarborough) Ltd | Professional & scientific | 2018 |
| Banken Buildings Ltd | Real estate | 2024 |
| Bansmed Enterprises Ltd | Health & social care | 2022 |
| Bar Street Brews Ltd | Hospitality | 2026 |
| Barbelle (Scarborough) Limited | Arts & recreation | 2017 |
| Bark Endeavour Whitby Ltd | Arts & recreation | 2022 |
| Barker's PUB Company Ltd | Hospitality | 2024 |
| Barkichi Ltd | Manufacturing | 2025 |
| Barkisland Homes Limited | Construction | 2001 |
| Barnes Agencies Limited | Wholesale & retail | 2013 |
| Barrigan's Gardens & Landscapes Ltd | Administrative & support | 2019 |
| Base-I Limited | Professional & scientific | 2026 |
| Basics Plus | Education | 1999 |
| Basros Developments Limited | Real estate | 2017 |
| Bassington Books Limited | Wholesale & retail | 2018 |
| Bastian Contrarian Ltd | Professional & scientific | 2019 |
| Bastone Advisory Ltd | Professional & scientific | 2026 |
| Battersea Holdings Ltd | Real estate | 2025 |
| Bay Front Scaffolding Ltd | Construction | 2014 |
| Bay Town Consultants Ltd | Professional & scientific | 2023 |
| Bay View Lettings Ltd | Real estate | 2018 |
| Bayfolk Design Ltd | Wholesale & retail | 2022 |
| Bayland Ltd | Information & communication | 2021 |
| Baystone Ventures Limited | Financial services | 2024 |
| BBC Formwork (NE) Ltd | Construction | 2022 |
| BBC Formwork Limited | Construction | 2008 |
| Bbcf Developments Ltd | Real estate | 2020 |
| BBG Goods Ltd | Wholesale & retail | 2022 |
| BC Energy Limited | Professional & scientific | 2019 |
| BCW Childcare Services Limited | Health & social care | 2025 |
| BD Grill House Ltd | Hospitality | 2025 |
| BDS Properties (Yorkshire) Limited | Real estate | 2014 |
| BE Outstanding Ltd | Information & communication | 2020 |
| Beacon Recovery Services (Yorkshire) Ltd | Wholesale & retail | 2019 |
| Bear Escapes Limited | Real estate | 2011 |
| Beatniksaccessories Ltd | Wholesale & retail | 2025 |
| Beautique Medispa Ltd | Other services | 2003 |
| Bebelem Limited | Professional & scientific | 2026 |
| Beckview Studios Limited | Information & communication | 2022 |
| Bedford Court (Maintenance) Limited | Households | 2011 |
| Bedi Brothers Limited | Hospitality | 2024 |
| Bedwal Dental Limited | Health & social care | 2024 |
| Beech Restaurants Limited | Hospitality | 2015 |
| Beech Walk Limited | Real estate | 2000 |
| Beeching Holdings Limited | Financial services | 2018 |
| Beechwood (Strathtay) Limited | Real estate | 2014 |
| Beehive Travel Solutions Limited | Administrative & support | 2011 |
| Beeley 1971 Limited | Extraterritorial | 2015 |
| Beeline Radio Cars Ltd | Transport & logistics | 2023 |
| Beetlebug Music Ltd | Arts & recreation | 2020 |
| Beevers Whitby Limited | Wholesale & retail | 2005 |
| Behzco Ltd | Hospitality | 2010 |
| Belcon Civil Engineering Limited | Construction | 2007 |
| Belgrave Management Company Limited | Households | 2009 |
| Bell Elliot Leisure Limited | Hospitality | 1969 |
| Bella 53 Pizza Limited | Hospitality | 2022 |
| Bella Cucina York Ltd | Hospitality | 2026 |
| Bella Properties (NW) Ltd | Real estate | 2025 |
| Bellehair Studio Limited | Other services | 2002 |
| Beloved Properties Limited | Real estate | 2025 |
| Belvedere Mansions Management Limited | Households | 2004 |
| Bengal Spice Limited | Hospitality | 2003 |
| Beresford Investment Property Limited | Hospitality | 2017 |
| Bespoke Cleaning Solutions (Yorkshire) Ltd | Administrative & support | 2026 |
| Best Quality Foods Limited | Wholesale & retail | 2018 |
| Betdigital Ltd | Information & communication | 2023 |
| Beth Normandale Ltd | Agriculture & fishing | 2023 |
| Better Business Energy Limited | Wholesale & retail | 2009 |
| Betton Consulting Limited | Construction | 2011 |
| Betton Wines Limited | Wholesale & retail | 2021 |
| Bewick Developments Limited | Hospitality | 2001 |
| Beyond Star Solutions Ltd | Extraterritorial | 2023 |
| Beyond the Field Consulting Ltd | Professional & scientific | 2022 |