| Bradford on Avon Health and Wellbeing Ltd | Health & social care | 2025 |
| Bradford on Avon Hillside Community Interest Company | Households | 2012 |
| Bradford Tyre Shop Ltd | Wholesale & retail | 2020 |
| Bradford-On-Avon Rugby Club Limited | Arts & recreation | 2014 |
| Branded Schools Ltd | Construction | 2021 |
| Brandnv Limited | Administrative & support | 2017 |
| Brewtronics Ltd | Information & communication | 2020 |
| Bristol and Bath Property Maintenance Ltd | Construction | 2026 |
| Britten (UK) Limited | Manufacturing | 2007 |
| Broadford Hotel Ltd | Hospitality | 2016 |
| Bsba Limited | Arts & recreation | 2016 |
| Budbury Tynings Management Company Limited | Households | 2007 |
| Burbidge Electrical Contractors Limited | Construction | 2005 |
| Burghope Cottages Ltd | Hospitality | 2006 |
| C Smith Carpentry & Joinery Ltd | Manufacturing | 2024 |
| Camaava Ltd | Construction | 2025 |
| Caroe Ltd | Hospitality | 2016 |
| Cartwright Hospitality LLP | | 2025 |
| Catamount Construction Ltd | Construction | 2025 |
| Catrina Law Ltd. | Professional & scientific | 2017 |
| Cedarthree Limited | Professional & scientific | 2007 |
| Charley Rabbit Studio LLP | | 2024 |
| Chippenham Natural Health Clinic Limited | Wholesale & retail | 2023 |
| Chirchholme Ltd | Real estate | 2014 |
| Chris Baker Ventures Ltd | Financial services | 2026 |
| Church Farm Close (Hilperton) Management Company Limited | Households | 2023 |
| Church Farm Monkton Farleigh Livery Limited | Other services | 2025 |
| Church Street Practice (Bradford on Avon) Limited | Administrative & support | 2019 |
| Church Street Practice Ltd | Administrative & support | 2004 |
| Circle Learning Ltd | Professional & scientific | 2022 |
| Cirrus & Stratus Ltd | Information & communication | 2025 |
| Citytocountry Ltd | Real estate | 2013 |
| Clear Coaching and Consulting Limited | Professional & scientific | 2007 |
| Cloudtriloquy Limited | Information & communication | 2026 |
| CM Electrical Ltd | Construction | 2025 |
| Cocreate Consultancy Ltd | Professional & scientific | 2012 |
| Cognicorp Ltd | Professional & scientific | 2011 |
| Community DNS Ltd | Information & communication | 2007 |
| Complete Controls (Southern) Limited | Professional & scientific | 2008 |
| Concept Analyst Limited | Professional & scientific | 2001 |
| Connexus 360 Ltd | Information & communication | 2024 |
| Corelay Cable Ltd | Construction | 2026 |
| Cotswold Games Ltd | Manufacturing | 2021 |
| Courtfield House (Trowbridge) Management Company Limited | Households | 2025 |
| Cowshed Growing Project CIC | Agriculture & fishing | 2026 |
| Cqfitness Limited | Wholesale & retail | 2021 |
| Craigie Woodworks Ltd | Manufacturing | 2006 |
| Creative Sauce Design Ltd | Professional & scientific | 2018 |
| Creative Star Ltd | Construction | 2023 |
| Credens Consulting Ltd | Information & communication | 2017 |
| Crozier Consulting Group Ltd | Professional & scientific | 2023 |
| Cru(Dités) Ltd | Professional & scientific | 2019 |
| Cultwellness Ltd | Health & social care | 2025 |
| Cunningstunt Limited | Extraterritorial | 2002 |
| Cure Double Glazing Repairs Ltd | Construction | 2014 |
| Curia AI Limited | Information & communication | 2026 |
| Current Architecture Ltd | Hospitality | 2023 |
| Curtis Cryer (BOA) Ltd | Professional & scientific | 2019 |
| D K Eastwood Limited | Health & social care | 2016 |
| DAN Faber Limited | Construction | 2021 |
| Danesmead Drive (Bratton) Management Company Limited | Households | 2025 |
| Dannys Rapture Ltd | Wholesale & retail | 2021 |
| David Reed (Holdings) Limited | Professional & scientific | 2000 |
| Davina Combe Limited | Manufacturing | 2016 |
| Ddsf Ltd | Water & waste | 2009 |
| Demainbray Close Management Company Limited | Households | 2024 |
| Depositor Solutions Limited | Manufacturing | 2017 |
| DG Psychology Limited | Health & social care | 2019 |
| Digital Love Industries Ltd | Wholesale & retail | 2023 |
| Divine Hair & Health Limited | Health & social care | 2019 |
| DJ and SA Banwell Limited | Agriculture & fishing | 2011 |
| DKN Acoustics Ltd | Professional & scientific | 2016 |
| DMS Contractor Ltd | Construction | 2018 |
| Dog House Design Limited | Wholesale & retail | 2015 |
| Doric Developments (Bath) Limited | Construction | 1986 |
| Dphq Ltd | Professional & scientific | 2022 |
| DR Kate BB Ltd | Health & social care | 2021 |
| DR Wilde Ltd | Health & social care | 2017 |
| Drinx Club Limited | Professional & scientific | 2017 |
| DS Jones Consulting Ltd | Information & communication | 2017 |
| Dunski Trading Ltd | Wholesale & retail | 2017 |
| Dusty APE Limited | Manufacturing | 2016 |
| Dwbr Ltd | Real estate | 2015 |
| Eber Innovations Limited | Real estate | 2016 |
| Eclectec Ltd | Arts & recreation | 2019 |
| Eclipse Properties Bath Ltd | Real estate | 2019 |
| Eclipse Renovations Limited | Construction | 2016 |
| Edvectus Limited | Administrative & support | 2013 |
| Egeria Consulting Limited | Transport & logistics | 2006 |
| Eight Count Limited | Information & communication | 2014 |
| Electronic News Publishing Limited | Information & communication | 2005 |
| Elite Access Recovery Ltd | Manufacturing | 2025 |
| Elite Roof Clean Ltd | Administrative & support | 2024 |
| Embr Media Limited | Information & communication | 2015 |
| Employee Reward Consultancy Ltd | Administrative & support | 2024 |
| EN Technical Services Ltd | Administrative & support | 2023 |
| Engfran Services Limited | Information & communication | 2000 |
| EPC Assessments Ltd | Professional & scientific | 2018 |
| Executrix Ltd | Real estate | 2010 |
| Expert Choices Ltd | Professional & scientific | 2016 |