| Bathroomsinstallation.Com Ltd | Construction | 2022 |
| Batko Global Trans Ltd | Transport & logistics | 2026 |
| Bauer Gear Motor Limited | Manufacturing | 2011 |
| Baughton Property Company Ltd | Real estate | 2023 |
| Bawa Engineering Limited | Real estate | 1980 |
| BAX Accounting Contractors Ltd | Professional & scientific | 2017 |
| Bay 24 Limited | Professional & scientific | 2016 |
| Bayliss & Webb Ltd | Construction | 2023 |
| Baymans Security Limited | Administrative & support | 2016 |
| Bayoubab Ltd | Wholesale & retail | 2018 |
| Bays Foundation Limited | Arts & recreation | 2018 |
| Bays Sporting Facilities Limited | Arts & recreation | 2025 |
| Bays Wellness Limited | Arts & recreation | 2025 |
| BAZ Cars Bedford Ltd | Transport & logistics | 2023 |
| Bazz Transport Ltd | Transport & logistics | 2021 |
| BB Builders (Bedfordshire) Limited | Construction | 2014 |
| BB Estate Holdings Ltd | Real estate | 2026 |
| BB Investments (Bedford) Ltd | Construction | 2014 |
| BB IT Training Services Limited | Education | 2017 |
| BB Motorsport Ltd | Administrative & support | 2017 |
| BB Project Services Limited | Construction | 2024 |
| BB1315 Ltd | Hospitality | 2025 |
| BBF Property Holdings Limited | Real estate | 2021 |
| Bbmb PUB Company Limited | Hospitality | 2019 |
| BBR Beauty Salon Ltd | Other services | 2024 |
| Bbrcommunity Ltd | Public administration | 2024 |
| Bby-Why Limited | Wholesale & retail | 2019 |
| BC Holdings (UK) Limited | Administrative & support | 2004 |
| BC Services (UK) Limited | Administrative & support | 2004 |
| Bc-Tyres Express Limited | Wholesale & retail | 2025 |
| BCA MIP Nominee Limited | Financial services | 2020 |
| BCD Roofline Ltd | Construction | 2022 |
| Bcie Limited | Education | 2009 |
| BCM Agency Limited | Professional & scientific | 2016 |
| BCT Property Holdings Limited | Other services | 2025 |
| Bcuk Services Ltd | Wholesale & retail | 2023 |
| BCW Builders Limited | Construction | 2018 |
| Bd&R Ltd | Hospitality | 2025 |
| BDB Performance Limited | Wholesale & retail | 2025 |
| BDC Drylining Ltd | Construction | 2025 |
| BE 1 Architects Limited | Professional & scientific | 2012 |
| BE Accounting Ready Limited | Professional & scientific | 2020 |
| BE Clear Technologies Limited | Administrative & support | 2025 |
| BE Moore Limited | Health & social care | 2014 |
| Beachmeade Limited | Real estate | 2009 |
| Beachwood Retreats Limited | Real estate | 2023 |
| Beacon Facilities Support Ltd | Administrative & support | 2022 |
| Beacon Reversionary Nominees U.K. Limited | Financial services | 1999 |
| Beagarie Power Engineering Ltd | Professional & scientific | 2024 |
| Beanie Sport Ltd | Wholesale & retail | 2018 |
| Bear and Bramble Ltd | Wholesale & retail | 2021 |
| Bear Bricks Architectural Glazing Ltd | Construction | 2021 |
| Bearbeta Projects Limited | Information & communication | 2024 |
| Beard and Ayers Limited | Real estate | 2011 |
| Bearings UK (WB) Limited | Manufacturing | 2021 |
| Bearjs Ltd | Information & communication | 2015 |
| Bearmantis Capital Limited | Financial services | 2024 |
| Beat the Block CIC | Education | 2025 |
| Beath Domestic Buildings Ltd | Construction | 2023 |
| Beaumaris Global Medical Services Limited | Health & social care | 2012 |
| Beaumont Plumbing & Heating Contractors Limited | Construction | 2021 |
| Beautinity Ltd | Other services | 2015 |
| Beautology Laser & IPL Services Ltd. | Manufacturing | 2012 |
| Beautons Ventures Ltd | Information & communication | 2017 |
| Beauty & Science Professional Limited | Other services | 2014 |
| Beauty by H Ltd | Other services | 2020 |
| Beauty by Janice Limited | Other services | 2007 |
| Beauty by TIA Academy Ltd | Other services | 2026 |
| Beauty by TIA Limited | Other services | 2024 |
| Beauty Glow Salon Limited | Other services | 2023 |
| Beauty Lodge Limited | Health & social care | 2011 |
| Beauty of Bedford Limited | Other services | 2023 |
| Beauty Specialists Edition Ltd | Other services | 2015 |
| Beaver Sheds Limited | Manufacturing | 2010 |
| Beavers Solution Limited | Information & communication | 2018 |
| Beavis Carpentry Limited | Manufacturing | 2019 |
| Bebiss Ltd | Agriculture & fishing | 2025 |
| Because WE CAN Media Ltd | Professional & scientific | 2019 |
| Beckett Construction Ltd | Construction | 2021 |
| Beckett Landscaping Ltd | Construction | 2024 |
| Beckies BIT of Sparkle Ltd | Professional & scientific | 2024 |
| Becklectic Ltd | Professional & scientific | 2026 |
| Beckley Rose Property Solutions Limited | Real estate | 2019 |
| Becosy Ltd | Wholesale & retail | 2022 |
| Beda Homecare Ltd | Health & social care | 2014 |
| Bedford & County Athletic Club Limited | Arts & recreation | 2013 |
| Bedford & County Golf Club Limited | Arts & recreation | 2013 |
| Bedford & Milton Keynes Waterway Trust | Arts & recreation | 2006 |
| Bedford Accountants Limited | Professional & scientific | 2016 |
| Bedford Amateur Regatta C.I.C. | Other services | 2018 |
| Bedford and District Gardeners Association Limited | Wholesale & retail | 2024 |
| Bedford Angel Domino Team Ltd | Health & social care | 2019 |
| Bedford Arts & Crafts Centre & Leisure Learning Community Interest Company | Education | 2013 |
| Bedford Auto FIX Limited | Wholesale & retail | 2024 |
| Bedford Automotive Ltd | Wholesale & retail | 2025 |
| Bedford Barbell Ltd | Arts & recreation | 2021 |
| Bedford Battery Company Limited | Wholesale & retail | 1933 |
| Bedford Bay Services Limited | Other services | 2013 |
| Bedford Bi-Folds Ltd | Manufacturing | 2015 |
| Bedford Blossom Ltd | Health & social care | 2019 |