| Beach House (Seaton) Limited | Extraterritorial | 2011 |
| Behavet Ltd | Professional & scientific | 2020 |
| Benefits and Work Publishing Limited | Professional & scientific | 2006 |
| Bespoke & Harmony Coastal Care Ltd | Health & social care | 2025 |
| Bethan Roberts Psychology Ltd | Health & social care | 2024 |
| Betwick Property Rental Ltd | Real estate | 2023 |
| Bianca Hansen-Hamburger Ltd | Health & social care | 2024 |
| Bill Toleman Consultancy Ltd | Education | 2024 |
| Bipa Limited | Hospitality | 2019 |
| Birdhouse Interiors Limited | Professional & scientific | 2020 |
| Blackdown Hills Solutions Ltd | Wholesale & retail | 2024 |
| Blenheim Place (Wembley Park) Management Limited | Households | 1978 |
| Blindspot Film Ltd | Information & communication | 2023 |
| Block One, the Farrows (Maidstone) RTM Company Limited | Households | 2026 |
| Block Two, the Farrows (Maidstone) RTM Company Limited | Households | 2026 |
| Blue Tree Homes Limited | Construction | 2006 |
| Bramble Acre (Management) Company Limited | Households | 2013 |
| Branscombe Airfield & Camping Limited | Hospitality | 2017 |
| Branscombe Airfield Limited | Administrative & support | 2007 |
| Branscombe Vale Brewery Limited | Manufacturing | 2002 |
| Branscombe Village Square Management Co. Limited(The) | Real estate | 1983 |
| Brava Court Limited | Households | 1987 |
| Bray Furniture Limited | Manufacturing | 2019 |
| Brereworde Restaurants Ltd | Hospitality | 2024 |
| Bridgecaster Limited | Construction | 2003 |
| Brighter Horizons Brighton Ltd | Health & social care | 2026 |
| Brighton Psychology Clinic Ltd | Health & social care | 2023 |
| Broadwindsor Craft & Design Centre Limited | Manufacturing | 2002 |
| Brockwell Fore Street Seaton Management Limited | Real estate | 2015 |
| Brodie Agriculture Ltd | Agriculture & fishing | 2021 |
| Buckingham Place (Wembley Park) Management Limited | Households | 1978 |
| BUY2LETGARAGES Limited | Real estate | 2025 |
| BUY2LETHOUSES Limited | Real estate | 2026 |
| Cable Holdings (SW) Ltd | Financial services | 2022 |
| Calico House Ltd | Real estate | 2022 |
| California Fitness Ltd | Arts & recreation | 2020 |
| California Gym Ltd | Arts & recreation | 2026 |
| Canbury Consultants Limited | Professional & scientific | 2012 |
| Canvey 26 Ltd | Professional & scientific | 2025 |
| Carekem Limited | Manufacturing | 2015 |
| Carillon Gardens Management Company Limited | Real estate | 2001 |
| Carit Ltd. | Administrative & support | 2002 |
| Cashless Plus Limited | Other services | 2015 |
| CCS Highways Limited | Construction | 2012 |
| Cedar Court (Bath Lane) RTM Company Limited | Households | 2026 |
| Cedar Grove Management Company Limited | Households | 1994 |
| Chalford Court Limited | Real estate | 2000 |
| Chalk Island CIC | Arts & recreation | 2026 |
| Chameleon Clothing Limited | Wholesale & retail | 1997 |
| Chard Truck Services Limited | Wholesale & retail | 1997 |
| Chargot Ltd | Arts & recreation | 2026 |
| Charnwood SW Ltd | Real estate | 2015 |
| Chelmer IT Support Ltd | Information & communication | 2011 |
| Chicken Shack Limited | Hospitality | 2023 |
| Chris Gibbon Associates Ltd | Information & communication | 2011 |
| Ciff Film Festival Limited | Information & communication | 2025 |
| Circle Case Management Limited | Health & social care | 2015 |
| Cityview Psychology Ltd | Professional & scientific | 2020 |
| CKW Residents' Management Company Ltd | Households | 2020 |
| Clarendon Psychology Ltd | Health & social care | 2023 |
| Clarke Brothers Building Contractors Ltd | Construction | 2017 |
| Clarke Holdings (SW) Ltd | Financial services | 2020 |
| CLC Psychology Ltd | Health & social care | 2017 |
| Cleaneco Solar Services Ltd | Construction | 2024 |
| Cliff Castle Management Company Limited | Real estate | 1987 |
| Clifton Case Co. Limited | Real estate | 1964 |
| Clinch Plumbing & Heating Ltd | Construction | 2021 |
| CLOUD10 Aviation Ltd | Professional & scientific | 2014 |
| Clun Terrace RTM Company Limited | Households | 2011 |
| Coast Heating Solutions Ltd | Construction | 2025 |
| Cobb Gate Limited | Real estate | 2005 |
| Colcombe Wood Enterprises Ltd | Construction | 2019 |
| Compassionate Change Ltd | Health & social care | 2021 |
| Compton Court Limited | Households | 2004 |
| Concrete Slipform Consultancy Ltd. | Administrative & support | 2007 |
| Corehorse Ltd | Professional & scientific | 2021 |
| Cottam Construction Ltd | Construction | 2002 |
| Cottam Holdings (SW) Ltd | Financial services | 2020 |
| Cottam Properties (SW) Ltd | Real estate | 2014 |
| Counsellors' Staffroom Limited | Administrative & support | 2021 |
| County Bars Ltd | Extraterritorial | 2021 |
| Coverdale Management Company Limited | Real estate | 2005 |
| CPO Estates Limited | Real estate | 2024 |
| Craftora Ltd | Manufacturing | 2025 |
| Cream Tea Consultancy Ltd | Real estate | 2016 |
| Crestbrook Place RTM Company Limited | Households | 2013 |
| Crestone Limited | Construction | 2014 |
| Crickcombe Limited | Professional & scientific | 2018 |
| CRU Inc Ltd | Other services | 2018 |
| CSN Developments Ltd | Real estate | 2016 |
| Cura Psychology Ltd | Health & social care | 2022 |
| D a Commercials Ltd | Transport & logistics | 2013 |
| D M Knight Property Developments Ltd | Construction | 2023 |
| D.A.H. Bracey Lyme Regis LLP | | 2005 |
| Daisychain Training and Consultation Limited | Professional & scientific | 2007 |
| Dalton Aram Planning Limited | Professional & scientific | 2014 |
| Dapplemoor Ltd | Real estate | 2021 |
| David Ward Motor Services Limited | Wholesale & retail | 2004 |
| Davison & Shaw Ltd | Real estate | 2016 |
| Dawn Gosden Coaching Ltd | Health & social care | 2021 |