| Bridge Global Trade and Development Ltd | Transport & logistics | 2018 |
| Bridgemary Nutrition Ltd | Health & social care | 2025 |
| Bright Management Associates Limited | Professional & scientific | 1997 |
| Britannica Development Ltd | Construction | 2020 |
| Brite-Move Ltd | Real estate | 2011 |
| BRO UK Limited | Professional & scientific | 1997 |
| Broad Reach Sailing Ltd | Administrative & support | 2017 |
| Brockhurst 1957 Limited | Extraterritorial | 2015 |
| Brockhurst Road Limited | Households | 2006 |
| Brockhurst Road Property Ltd | Real estate | 2025 |
| Brook Retail Limited | Wholesale & retail | 2003 |
| Brooks Bruce Limited | Professional & scientific | 2003 |
| Brooks Garden Services Ltd | Administrative & support | 2011 |
| BROOKSEY818 Ltd | Transport & logistics | 2024 |
| Brothers Environmental Solutions Ltd | Construction | 2025 |
| Brown & Pencil UK Ltd | Professional & scientific | 2021 |
| Bruckfield Limited | Administrative & support | 2007 |
| Brune Medical Partnership LP | | 2016 |
| BSC Food PVT Ltd | Hospitality | 2024 |
| Btcc Events Ltd | Information & communication | 2026 |
| Buchanan Cowie Ltd | Financial services | 2020 |
| Buckle J Limited | Real estate | 2018 |
| Buckle Property Limited | Real estate | 2022 |
| Bucks Farm Holiday Cottages ( Isle of Wight ) Limited | Hospitality | 2021 |
| Bucks Tax and Payroll Services Limited | Professional & scientific | 2013 |
| Builderland Limited | Administrative & support | 2017 |
| Buildsure Services Ltd | Professional & scientific | 2017 |
| Bulky Cards Ltd | Wholesale & retail | 2026 |
| Bullen Equity Limited | Administrative & support | 2025 |
| Bullfrog Technologies Ltd | Professional & scientific | 2025 |
| Burns Building Ltd | Construction | 2024 |
| Burnt Cake Media Limited | Information & communication | 2011 |
| Buryhall Home Improvements Ltd | Construction | 2026 |
| Buscoad Limited | Administrative & support | 2024 |
| Butterworth AV Ltd | Information & communication | 2023 |
| BW & H Trading Ltd | Wholesale & retail | 2009 |
| BW Bookkeeping Limited | Professional & scientific | 2022 |
| BW Emporium Limited | Construction | 2017 |
| BY Invitation Hairdressing Ltd | Other services | 2013 |
| C & M Building Services (UK) Limited | Construction | 2012 |
| C & S Property Rentals Ltd | Real estate | 2025 |
| C and F Cabling Limited | Professional & scientific | 2009 |
| C F Travel Ltd | Administrative & support | 2026 |
| C R D Aldershot Limited | Professional & scientific | 2003 |
| C Stock Building Services Limited | Construction | 2025 |
| C.G.T Builders Limited | Construction | 2021 |
| C.P.Dhairandbeauty Ltd | Other services | 2025 |
| C2U Gosport CIC | Hospitality | 2023 |
| Caesar Empire Training Ltd | Education | 2022 |
| Cagri Sunel Hairdresser Ltd | Other services | 2021 |
| Cajunel Ltd | Manufacturing | 2021 |
| Calcot ROW Ltd | Wholesale & retail | 2025 |
| Caledonia VIP Limited | Transport & logistics | 2001 |
| Camber Physio Ltd | Other services | 2026 |
| Cambridge Allergy Ltd | Professional & scientific | 2015 |
| Camden Communications Ltd | Professional & scientific | 2018 |
| Camden Residents Limited | Households | 1991 |
| Camelot Contracts (Sussex) Limited | Construction | 2012 |
| Campbell & Cross Rental Ltd | Real estate | 2026 |
| Campingwagon Ltd | Wholesale & retail | 2015 |
| Canopy Tree Climbing Ltd | Education | 2024 |
| Canterfield Ltd | Administrative & support | 1994 |
| Capa GAS & Plumbing Ltd | Construction | 2018 |
| Capillum Plus Limited | Other services | 2020 |
| Car Body Centaur Ltd | Wholesale & retail | 2018 |
| Car Clinic (South) Limited | Wholesale & retail | 2011 |
| Car Components(Gosport)Limited | Wholesale & retail | 1961 |
| Card Radar Limited | Wholesale & retail | 2025 |
| Caregiver Station Ltd | Health & social care | 2023 |
| Carewbian Ltd | Hospitality | 2026 |
| CAREWISE24 Ltd | Health & social care | 2014 |
| Carisbrooke Cladding & Carpentry Ltd | Construction | 2010 |
| Carmallin Installations Ltd | Information & communication | 2025 |
| Carpet Fayre Limited | Wholesale & retail | 1999 |
| Carpetcraft / Rugcraft Ltd | Water & waste | 2017 |
| Carpetcraft Limited | Wholesale & retail | 2006 |
| Carrier Properties Ltd | Real estate | 2021 |
| Castle Eden Brewery Ltd | Wholesale & retail | 2012 |
| Castle Eden Properties Ltd | Financial services | 2014 |
| Castle Speakers Ltd | Wholesale & retail | 2025 |
| Castlebase Holding Ltd | Professional & scientific | 2025 |
| Catavend Ltd | Hospitality | 2024 |
| Catering Equipment Remedies Ltd | Manufacturing | 2023 |
| CB House Limited | Hospitality | 2013 |
| CBH Health & Fitness Ltd | Arts & recreation | 2019 |
| Ccms Gosport Limited | Wholesale & retail | 2018 |
| CDR Installs Ltd | Professional & scientific | 2026 |
| CE Facilities Management Limited | Construction | 2011 |
| CE Marking Handmade Toys Limited | Manufacturing | 2015 |
| Cedarock Limited | Real estate | 2003 |
| CEE Systems Limited | Information & communication | 2023 |
| Celebration City Ltd | Arts & recreation | 2023 |
| Cenp Limited | Real estate | 2014 |
| Chaley Estates Limited | Real estate | 2002 |
| Challenger Europe Limited | Professional & scientific | 2004 |
| Challenger Insight Limited | Professional & scientific | 2017 |
| Challenger Lighting Services Limited | Construction | 2000 |
| Chambers Engineering (Gosport) Ltd | Wholesale & retail | 2006 |
| Charactertime Ltd | Wholesale & retail | 2020 |
| Chark (LEE) Co. Limited | Real estate | 1962 |