| Bitec Body Panels Limited | Wholesale & retail | 1994 |
| BK Businesses Ltd | Professional & scientific | 2007 |
| Black Box Partnerships LLP | | 2018 |
| Black Box Procurement Limited | Information & communication | 2015 |
| Black Box Rentals Limited | Real estate | 2024 |
| Black Country Metal Works Ltd | Administrative & support | 2006 |
| Black Hawk Laser Games Ltd | Arts & recreation | 2014 |
| Black Twelve Limited | Financial services | 2026 |
| Blackwood Holdings Group Ltd | Real estate | 2023 |
| Blackwood Property Group Ltd | Real estate | 2023 |
| Blair & Jones Limited | Hospitality | 2020 |
| Blakesgc Ltd | Hospitality | 2021 |
| BLG Surveys Limited | Real estate | 2017 |
| Blts 1 Limited | Professional & scientific | 2020 |
| Blue Acorn Property 10 Limited | Real estate | 2020 |
| Blue Horizons (Family Investment) Limited | Financial services | 2023 |
| Blue Zinc Group Ltd | Manufacturing | 2022 |
| Blueprint Joinery Ltd | Wholesale & retail | 2010 |
| Bluestone X Consulting Limited | Information & communication | 2012 |
| BM Contract Services Limited | Construction | 2017 |
| Body and Face Options Clinic Limited | Other services | 2020 |
| Bonny Bidco Limited | Manufacturing | 2026 |
| Booka Limited | Wholesale & retail | 2009 |
| Border Accountants Limited | Professional & scientific | 2023 |
| Border Financial Advice Limited | Financial services | 2021 |
| Border Temperature Control Ltd | Manufacturing | 2016 |
| Border Tree Care Ltd | Agriculture & fishing | 2013 |
| Bradley Giles Ltd | Information & communication | 2013 |
| Branam Limited | Extraterritorial | 2024 |
| Branding by G Limited | Professional & scientific | 2019 |
| Brennan's Brewery UK Ltd | Manufacturing | 2022 |
| Bricks and Mortar Properties Limited | Real estate | 2005 |
| Bright & Associates Limited | Professional & scientific | 2014 |
| Bright Home Developments (Sapphire) Limited | Real estate | 2021 |
| Britlink Ltd | Professional & scientific | 2010 |
| Brookes Electrical Services Limited | Construction | 2023 |
| Brookside Homes Limited | Hospitality | 2013 |
| Brookside Manor Estates Ltd | Hospitality | 2019 |
| Brown's Wholesale Limited | Wholesale & retail | 2010 |
| Bryn Derw Ltd | Construction | 2019 |
| Bryn View Developments Ltd | Construction | 2018 |
| BTC Developments (Kinnerley) Ltd | Professional & scientific | 2022 |
| Bucklewell Holdings Limited | Financial services | 2025 |
| Bultransauto Ltd | Wholesale & retail | 2017 |
| Burgoyne Developments Limited | Construction | 2003 |
| Burlingham Park Limited | Hospitality | 2004 |
| Bury's Property Services Limited | Real estate | 2026 |
| Business Fitness Hub Ltd | Professional & scientific | 2025 |
| Butterfly Beautique Limited | Other services | 2017 |
| BW Cleaning Ltd | Administrative & support | 2017 |
| C a Webster & SON (Farms) Limited | Agriculture & fishing | 1997 |
| C H Stone Ltd | Mining & quarrying | 2021 |
| C J Mot's Limited | Wholesale & retail | 2005 |
| C M Varley & Co Limited | Manufacturing | 1947 |
| C T S (Shropshire) Limited | Wholesale & retail | 2003 |
| C V Rollers (TPP) Limited | Manufacturing | 1966 |
| C&J Property Solutions(Powys) Ltd | Real estate | 2023 |
| C.R.A. International Limited | Wholesale & retail | 1992 |
| C17 Supplies Ltd | Wholesale & retail | 2017 |
| Cabin Lane Church | Other services | 1998 |
| Caer Care Company Ltd | Health & social care | 2016 |
| Caik Construction Ltd | Construction | 2024 |
| Cain Valley Tech Repair C.I.C. | Other services | 2020 |
| Calcot Limited | Real estate | 2021 |
| Callaghan Engineering Ltd | Construction | 2026 |
| Calorie Cafe Limited | Hospitality | 2007 |
| Cambria Engineering Services Limited | Construction | 2011 |
| Cambrian Hearing Ltd | Wholesale & retail | 2023 |
| Cambrian Heritage Railways Limited | Transport & logistics | 2009 |
| Cambrian House Emporium Limited | Real estate | 2012 |
| Cambrian Railways Society Limited | Other services | 1974 |
| Cambrian Railways Trust | Transport & logistics | 1999 |
| Cambrica Limited | Construction | 2024 |
| Cambridge Access Control Ltd | Financial services | 2025 |
| Campbell Braybrooke Limited | Professional & scientific | 2013 |
| Camper Products Limited | Wholesale & retail | 2022 |
| Canary GAS Ltd | Construction | 2021 |
| Candle & Co. Collective Ltd | Wholesale & retail | 2023 |
| Canopy Finance Ltd | Professional & scientific | 2025 |
| Capps-Uk Limited | Financial services | 2022 |
| Caradoc Investments Limited | Real estate | 2009 |
| Carl Lloyd Building and Property Services Limited | Construction | 2025 |
| Carriages Coffee Lounge & Bar Ltd | Hospitality | 2019 |
| Carriages Oswestry Ltd | Hospitality | 2023 |
| Castle Fine Arts Foundry Limited | Manufacturing | 2002 |
| CCA Shropshire Ltd | Transport & logistics | 2011 |
| CCS (Shropshire) Ltd | Professional & scientific | 2014 |
| CCS Services Limited | Transport & logistics | 2017 |
| CCW Haulage Ltd | Transport & logistics | 2025 |
| Cdbservices Ltd | Administrative & support | 2025 |
| Cecelia Grace Jewellery Limited | Wholesale & retail | 2025 |
| Cedar Dance Animations Limited | Education | 2003 |
| Ceiriog Training and Coaching Limited | Other services | 2025 |
| Ceiriog Valley Holidays Limited | Households | 2016 |
| Celynnen Developments Limited | Construction | 2013 |
| CFS Engineering (North Wales) Limited | Professional & scientific | 2019 |
| CGL Construction Limited | Construction | 2023 |
| CGL Energy Solutions Ltd | Professional & scientific | 2022 |
| CH Mobiles Limited | Wholesale & retail | 2021 |
| Chatha Property Management Ltd | Real estate | 2026 |