| Bentleys Estate Agents (Bingley) Ltd | Real estate | 2020 |
| Bentleys Estate Agents Ltd | Real estate | 2013 |
| Beresford Roofing Limited | Construction | 2000 |
| Bergeot Trading Ltd | Health & social care | 2025 |
| Berry Storage Limited | Transport & logistics | 2024 |
| Berwicks Solutions Limited | Real estate | 2015 |
| Best Ever Deals Limited | Wholesale & retail | 2025 |
| Bestlynn Limited | Professional & scientific | 2019 |
| Betts Fetherston Coaching Ltd | Professional & scientific | 2019 |
| Beyond Beautiful (Cheshire) Limited | Other services | 2023 |
| Beyond Beautiful Training Limited | Education | 2024 |
| BFR Yorkshire Ltd | Construction | 2015 |
| BH Woodworking Ltd | Manufacturing | 2026 |
| BHA Acquisitions Ltd | Real estate | 2024 |
| Bhatti Foods Shipley Ltd | Hospitality | 2025 |
| Bhatti Studios Ltd | Information & communication | 2025 |
| Bholayshah Ltd | Wholesale & retail | 2024 |
| Bhspoke Services Limited | Administrative & support | 2018 |
| Bhspoken Limited | Construction | 2019 |
| Big Trader Limited | Wholesale & retail | 2005 |
| Bill Jarvis & SON Limited | Professional & scientific | 1978 |
| Bina Training Services Ltd | Professional & scientific | 2024 |
| Binayaa Properties Ltd | Real estate | 2024 |
| Bingley Counselling Limited | Health & social care | 2017 |
| Bingley Investment & Leasing Limited | Financial services | 1998 |
| Biome Health and Performance Limited | Health & social care | 2018 |
| Biostrong Limited | Other services | 2021 |
| Biosupply UK Limited | Professional & scientific | 2004 |
| Bioyieldcare Limited | Agriculture & fishing | 2025 |
| Birchanger Ltd | Information & communication | 2021 |
| BL Clients Limited | Education | 2024 |
| Black Acre Motors Ltd | Wholesale & retail | 2019 |
| Black FOX Leisure Ltd | Hospitality | 2017 |
| Black Panther Automotive Ltd | Wholesale & retail | 2024 |
| Blackburn House Properties Ltd | Construction | 2022 |
| Blackmoor Dining and Events Limited | Hospitality | 2024 |
| Blackwell Properties Limited | Real estate | 2024 |
| Blakesley Work Psychology Ltd | Professional & scientific | 2025 |
| Blenheim House Properties (Bradford) Limited | Real estate | 1960 |
| Blenkinsop & Co Limited | Professional & scientific | 2005 |
| BLG Construction Limited | Construction | 2026 |
| Blokxblok Ltd | Information & communication | 2024 |
| Blondee Ltd | Other services | 2025 |
| Bloodworks Ltd | Health & social care | 2025 |
| Bloomwell Imaging Ltd | Health & social care | 2026 |
| BLU Whale Ltd | Administrative & support | 2023 |
| Blue Corkscrew Ltd | Hospitality | 2023 |
| Blue Wire Property Limited | Real estate | 2024 |
| Blue Wire Renewables Limited | Construction | 2026 |
| BMB Mechanical, Electrical & Renewable Energy Limited | Construction | 2026 |
| BMC (Yorkshire) Care Limited | Administrative & support | 2016 |
| BMH Property Investments Limited | Real estate | 2025 |
| Bobby'Z Ltd | Hospitality | 2023 |
| Boho Farmhouse Limited | Real estate | 2020 |
| Bolton Medical Services Limited | Health & social care | 2018 |
| Boomerang Studios Limited | Wholesale & retail | 2023 |
| Boora Properties Limited | Real estate | 2020 |
| Booze Master Shipley Ltd | Wholesale & retail | 2023 |
| Borromean Consultancy Limited | Real estate | 2025 |
| Bostec Solutions Limited | Wholesale & retail | 2019 |
| Boston Spa Building Limited | Construction | 2024 |
| Boston Spa Roofing Limited | Construction | 2024 |
| Bowman Cars Ltd | Wholesale & retail | 2023 |
| Bows and Beams CIC | Hospitality | 2025 |
| Bptk Marketing Solutions Limited | Administrative & support | 2016 |
| BR Exclusive Car Care Limited | Wholesale & retail | 2023 |
| Bracefill Limited | Manufacturing | 1991 |
| Brackenstead Ltd | Wholesale & retail | 2026 |
| Bradbury Welding Services Limited | Manufacturing | 2014 |
| Bradbury's Electrical Contractors Limited | Construction | 2002 |
| Bradcot UK Ltd | Manufacturing | 2017 |
| Bradford and Shipley LET Ltd | Real estate | 2013 |
| Bradford and Shipley Properties Ltd | Real estate | 2013 |
| Bradford Belles CIC | Arts & recreation | 2023 |
| Bradford Chiropractic Clinic Limited | Health & social care | 2005 |
| Bradford Digital Ltd | Administrative & support | 2026 |
| Bradford Estates Services Ltd. | Real estate | 1980 |
| Bradford Family History Society Limited | Other services | 2019 |
| Bradford Flower Fund Homes | Real estate | 1958 |
| Bradford Flower Homes Development Limited | Real estate | 2020 |
| Bradford Lifts Ltd | Manufacturing | 2018 |
| Bradford Property Developments Limited | Real estate | 1992 |
| Bradford Property Holdings Limited | Real estate | 2026 |
| Bradford Roofing Contractors Limited | Construction | 1971 |
| Bradford South Asian Heritage Forum C.I.C. | Arts & recreation | 2024 |
| Bramley Recycling Limited | Manufacturing | 2023 |
| Brava HV Limited | Construction | 2011 |
| Breakthrough Leadership Ltd | Information & communication | 2006 |
| Brew’D Ltd | Hospitality | 2024 |
| Brighouse RAW Limited | Manufacturing | 2020 |
| Bright Sparks Theatre Arts Company Community Interest Company | Arts & recreation | 2012 |
| Brightedge Cleaning Services Ltd | Administrative & support | 2025 |
| Brighter Days Supports Limited | Health & social care | 2023 |
| Brightside Developments Ltd | Real estate | 2018 |
| Broad Eyecare (Sandbach) Ltd | Health & social care | 2018 |
| Broad Eyecare Ltd | Extraterritorial | 2014 |
| Broadfield Lane Limited | Real estate | 2018 |
| Broadway Developments (Leeds) Ltd | Construction | 2024 |
| Bron Textile Limited | Wholesale & retail | 2023 |
| Bronte Healthcare Limited | Health & social care | 2024 |