| Bonacapsa Limited | Real estate | 2022 |
| Bonbela Limited | Professional & scientific | 2020 |
| Bond Worth Limited | Manufacturing | 2004 |
| Boothly Ltd | Information & communication | 2025 |
| Boozle Designs Ltd | Wholesale & retail | 2021 |
| Borange Media Ltd | Information & communication | 2024 |
| Borrowfield Ltd | Wholesale & retail | 2022 |
| Bostin Watch Company Ltd | Manufacturing | 2025 |
| Bothriochloa Ltd | Transport & logistics | 2022 |
| Bouldrichill Ltd | Wholesale & retail | 2019 |
| Bowater Holdings Limited | Construction | 2015 |
| Bowbrook Project Management Services Limited | Professional & scientific | 2018 |
| Bowen's Groundwork Services Ltd | Construction | 2024 |
| Box Perfect Ltd | Wholesale & retail | 2024 |
| Box Scaffolding Limited | Construction | 2020 |
| Box-Hire.Com Ltd | Administrative & support | 2025 |
| Boxer Associates Limited | Construction | 2008 |
| Boyd-Deacon Ltd | Real estate | 2023 |
| Bradley Couriers Services Ltd | Transport & logistics | 2026 |
| Bradley Performance Limited | Wholesale & retail | 2021 |
| Bradley Wall Developments Ltd | Construction | 2026 |
| Brads TM Ltd | Construction | 2024 |
| Branches Nationwide Limited | Administrative & support | 2018 |
| Branded Mark Limited | Information & communication | 2022 |
| Brays Plant Ltd | Construction | 2005 |
| Brazivore Ltd | Transport & logistics | 2024 |
| Bread and Butler Limited | Manufacturing | 2015 |
| Breaksandchains CIC | Wholesale & retail | 2022 |
| Breakwells Holdings Limited | Financial services | 2019 |
| Breakwells Transport Limited | Transport & logistics | 2019 |
| Breathe in Coaching and Consulting Ltd | Professional & scientific | 2024 |
| Brewe Ltd | Hospitality | 2024 |
| Bridge Design Ltd | Professional & scientific | 2024 |
| Bright Auditing Ltd | Professional & scientific | 2021 |
| Bright Horizons Care Limited | Extraterritorial | 2025 |
| Brimstone ALE House Holdings Ltd | Hospitality | 2020 |
| Brimstone ALE Houses Ltd | Hospitality | 2019 |
| Brintons Carpets Limited | Manufacturing | 2011 |
| Brintons Overseas Holdings Limited | Financial services | 1978 |
| Bristol Hose Limited | Wholesale & retail | 2000 |
| Britespark Homes Limited | Construction | 2024 |
| British American Football Referees Association Limited | Arts & recreation | 2007 |
| Brockway Carpets Limited | Manufacturing | 1935 |
| Bromyard Equestrian Centre Limited | Agriculture & fishing | 2022 |
| Brooks Engineering Services Ltd | Manufacturing | 2018 |
| Broome Farm Limited | Agriculture & fishing | 2021 |
| Brorkus Ltd | Administrative & support | 2021 |
| Brunswick Gate Management Company Limited | Real estate | 1997 |
| Bryn Hammond Limited | Professional & scientific | 2023 |
| BU Beard Ltd | Health & social care | 2022 |
| Buck and Bear Products Ltd | Other services | 2023 |
| Buck Investments Ltd | Real estate | 2022 |
| Buckfast Ltd | Education | 2022 |
| Buffrail Limited | Other services | 2000 |
| Build and Serve Ltd | Construction | 2020 |
| Build Buddy Midlands Ltd | Construction | 2025 |
| Burcher Green UK Ltd | Wholesale & retail | 2022 |
| Business Networks & Phones Limited | Real estate | 2022 |
| Business Phones & Networks Limited | Administrative & support | 2017 |
| Busters PUB Ltd | Hospitality | 2023 |
| Butler Enterprises Limited | Households | 2000 |
| Butlers Marston Ltd | Wholesale & retail | 2022 |
| Buvaxo Ltd | Health & social care | 2022 |
| Buy Online Limited | Wholesale & retail | 1999 |
| BWL Builders Limited | Construction | 2025 |
| Byte Bazar Ltd | Manufacturing | 2025 |
| C & F Building Solutions Ltd | Construction | 2025 |
| C & G Services (Worcs) Limited | Construction | 2007 |
| C & J Bird Limited | Administrative & support | 2007 |
| C & M Removals (Kidderminster) Limited | Other services | 2012 |
| C & S F Gait Limited | Real estate | 2013 |
| C and C Contracts Limited | Construction | 2014 |
| C E Poole Limited | Administrative & support | 2015 |
| C K Developments (Midlands) Ltd | Real estate | 2012 |
| C R Hobby & SON Limited | Construction | 2007 |
| C S James Transport Limited | Transport & logistics | 2018 |
| C S Vanguard Limited | Construction | 2014 |
| C Wood Electrical Ltd | Construction | 2022 |
| C&J Roofing Limited | Construction | 2017 |
| C&S Embroidery Ltd | Manufacturing | 2024 |
| C. Ferguson Roofing Limited | Construction | 2002 |
| C.A. Skellern and Sons Limited | Agriculture & fishing | 1964 |
| C.M Fire and Security Systems Ltd | Administrative & support | 2017 |
| C.S. Electrical, Plumbing & Building Services Limited | Construction | 1993 |
| CAB Glazing Services Ltd | Wholesale & retail | 2022 |
| Cabin Creations Ltd | Information & communication | 2020 |
| Cadismount Limited | Construction | 1979 |
| Caevaer Ltd | Transport & logistics | 2021 |
| Cafe Masala Kidderminster Ltd | Hospitality | 2025 |
| Cafe Pacifico Kidderminster Ltd | Hospitality | 2012 |
| Cairnmoist Ltd | Wholesale & retail | 2023 |
| Cakebole Consultancy Limited | Professional & scientific | 2012 |
| Caliburn Limited | Information & communication | 2025 |
| Callaghan Tailor by Arash Ltd | Manufacturing | 2026 |
| Callowservices Limited | Construction | 2011 |
| Calm Healthy Horses UK Ltd | Wholesale & retail | 2018 |
| Camicosti Design Ltd | Professional & scientific | 2019 |
| CAN DO Crew Limited | Administrative & support | 2009 |
| Canwell Limited | Administrative & support | 2007 |
| Canwell Property & Renovations Ltd | Real estate | 2020 |