| Bramblecrest Trustee Limited | Extraterritorial | 2023 |
| Branded UP Limited | Professional & scientific | 2014 |
| Brandon Mead (Painswick) Management Limited | Households | 1997 |
| Brandreth Holdings Limited | Financial services | 2015 |
| Brantwood Specialist School | Education | 2011 |
| Breathe-Richarge-Thrive Ltd | Information & communication | 2025 |
| BREJ1 Ltd | Other services | 2021 |
| Brewberry Holdings Limited | Manufacturing | 2024 |
| Bridge Mead Ltd | Health & social care | 2025 |
| Bridgwater Business Park Limited | Real estate | 2003 |
| Brightside Consulting Ltd | Professional & scientific | 2025 |
| Brilliant by Nature Limited | Transport & logistics | 2022 |
| Brimscombe Platers Limited | Manufacturing | 1998 |
| Bring a Book to Life Limited | Wholesale & retail | 2020 |
| Bring IT Together Ltd | Information & communication | 2010 |
| Brinkman Developments Ltd | Construction | 2011 |
| Bristol Neurophysio Ltd | Health & social care | 2015 |
| Bristol Port Wind Park Limited | Energy | 2005 |
| Bristol Textile Quarter CIC | Arts & recreation | 2014 |
| Britonfood Ltd | Wholesale & retail | 2024 |
| Britsash Ltd | Construction | 2020 |
| Britwind Limited | Manufacturing | 2014 |
| Broadcloth Limited | Manufacturing | 2017 |
| Broadoak Flooring Ltd | Construction | 2006 |
| Broody Designs Ltd | Information & communication | 2001 |
| Brookes Hair & Beauty Limited | Other services | 2006 |
| Brooklyn Consultancy Limited | Professional & scientific | 2002 |
| Brooksaudio Ltd | Professional & scientific | 2023 |
| Broome Consulting Limited | Administrative & support | 2020 |
| Brown and Doyle Heating and Plumbing Ltd. | Construction | 2019 |
| Bruce Salisbury Limited | Wholesale & retail | 2009 |
| Bruton-Cox Visuals Ltd | Information & communication | 2015 |
| BTP Arwin Limited | Real estate | 2023 |
| Buckle Media Ltd | Arts & recreation | 2026 |
| Build 360 (S.W) Ltd | Construction | 2012 |
| Built Square Construction Limited | Construction | 2019 |
| Built Square Limited | Construction | 2018 |
| Bulk Handling Limited | Professional & scientific | 2005 |
| Bulk Storage Space Limited | Transport & logistics | 2014 |
| Bureaunet Limited | Information & communication | 2019 |
| Burnt ASH Farm Limited | Agriculture & fishing | 2007 |
| Bushy Marketing Ltd. | Professional & scientific | 2018 |
| Business Matters Europe Limited | Professional & scientific | 1998 |
| Business VAT Consultancy Ltd | Professional & scientific | 2015 |
| Bussage Lodge Limited | Real estate | 2023 |
| Buzz Accountancy Limited | Professional & scientific | 2018 |
| BVM Moto Limited | Extraterritorial | 2014 |
| BW Construct Ltd | Construction | 2023 |
| C & S Maintenance & Cleaning Ltd | Construction | 2024 |
| C DE Cates Ltd | Health & social care | 2016 |
| C J Partridge Limited | Wholesale & retail | 2026 |
| C Nicholas Limited | Financial services | 2020 |
| C R Hollands Property Ltd | Real estate | 2025 |
| C W Morgan (Cotswolds) Limited | Construction | 2012 |
| C&G Safety & Environmental Limited | Extraterritorial | 2015 |
| C.B. Payne (Plastics) Limited | Manufacturing | 1973 |
| C.J. Ashmead Limited | Agriculture & fishing | 1977 |
| Caerus Consulting Ltd | Professional & scientific | 2008 |
| Cafe Canal Limited | Hospitality | 2014 |
| Caglayan Aktug Ltd | Professional & scientific | 2019 |
| Cainscross Fade Barber Ltd | Other services | 2025 |
| Cainscross Rugby Football Club | Arts & recreation | 2012 |
| Cairnsoft Ltd | Information & communication | 2010 |
| Calcol Investments Limited | Real estate | 2025 |
| Calcol Limited | Financial services | 2025 |
| Caleron Ltd | Transport & logistics | 2025 |
| Callemott Ltd | Professional & scientific | 2023 |
| Calor-Coal Ltd | Wholesale & retail | 2015 |
| Camelidhub Limited | Other services | 2025 |
| Campbell Brown Limited | Construction | 2019 |
| Campingninja Limited | Administrative & support | 2009 |
| Candochem Ltd | Education | 2019 |
| Candor Electrical Limited | Construction | 2014 |
| Caper Foods Ltd | Hospitality | 2022 |
| Capital House Software Limited | Information & communication | 1995 |
| Capital Markets Search Ltd | Administrative & support | 2012 |
| Captain Rooster Ltd | Information & communication | 2023 |
| Car Valeting Centre Ltd | Other services | 2023 |
| Carbon Bank Ltd | Professional & scientific | 2020 |
| Carbonaid Ltd | Extraterritorial | 2004 |
| Cardiff Cotswold Opera Ltd | Arts & recreation | 2024 |
| Cardiff Wind Park Limited | Energy | 2007 |
| Carly Parker Electrolysis Ltd | Other services | 2025 |
| Carol Stonham Consultancy Ltd | Professional & scientific | 2017 |
| Caroline Mudd Chiropractic Ltd | Health & social care | 2021 |
| Carpet & Flooring ( Stroud ) Ltd | Wholesale & retail | 2010 |
| Carrick & Mccoy Ltd | Education | 2024 |
| Carrick Arts Ltd | Education | 2025 |
| Casa Sabor Limited | Hospitality | 2025 |
| Cascade Sustainability Limited | Professional & scientific | 2026 |
| Casebury Craig Consulting Limited | Professional & scientific | 2024 |
| Casper Wilson Developments Ltd | Real estate | 2024 |
| Castle Management Company Limited(The) | Households | 1982 |
| Castle Rise (Flats) Management Ltd | Households | 2023 |
| Catamarina Ltd | Hospitality | 2020 |
| Catherine Grace Trust | Education | 1948 |
| Cathnor Corp Limited | Wholesale & retail | 2024 |
| Catswood Design Ltd | Professional & scientific | 2022 |
| Cattleco Ltd | Hospitality | 2026 |
| Causeway Intelligence (UK) Ltd | Professional & scientific | 2012 |