| Austin Divall (Holdings) Limited | Financial services | 2017 |
| Austin Divall Fabrications Limited | Other services | 1993 |
| Ayni Holdings Limited | Financial services | 2025 |
| Aztec Construction Limited | Construction | 2014 |
| Backstrom Holdings Ltd | Financial services | 2023 |
| Bagels and Coffee Ltd | Hospitality | 2017 |
| Baggy Trouser Music Limited | Arts & recreation | 2010 |
| Bales of FUN Ltd | Extraterritorial | 2018 |
| Balmoral Court Management Company Limited | Households | 1981 |
| Bamford Storage Facility Limited | Energy | 2024 |
| Bar Supplies (Sussex) Holdings Limited | Wholesale & retail | 2019 |
| Bar Supplies (Sussex) Limited | Wholesale & retail | 2007 |
| Barmer (Tyre & Battery Service) Limited | Wholesale & retail | 1965 |
| Barn & Bark Ltd | Arts & recreation | 2026 |
| Barrett Editing Limited | Information & communication | 2006 |
| Baxley Ltd | Manufacturing | 2017 |
| Bay Tree Cottages (Walberton) Limited | Households | 1989 |
| Bayview Court (Bognor Regis) Limited | Households | 2002 |
| Beautiful Waves Ltd | Administrative & support | 2024 |
| Bedivere Arts Company Ltd | Arts & recreation | 2019 |
| Bedouin Developments Limited | Other services | 2001 |
| BEE Waine Ltd | Professional & scientific | 2020 |
| Beetle Werks Limited | Administrative & support | 2005 |
| Beroo Limited | Extraterritorial | 2019 |
| Besonder Limited | Information & communication | 2023 |
| Bewlay Brothers Ltd. | Information & communication | 2014 |
| Beyond Roofing Ltd | Construction | 2025 |
| Biddleside Ltd | Professional & scientific | 2025 |
| Big Spoon Creative Ltd | Information & communication | 2024 |
| Biggs and Hill Limited | Manufacturing | 2023 |
| Birds of Paradise Pictures Ltd | Information & communication | 2025 |
| BIT Exchange Ltd | Financial services | 2021 |
| Blackouts Film Ltd | Information & communication | 2025 |
| Blackpool East Solar Farm Limited | Energy | 2020 |
| Blakehurst Consultancy Limited | Professional & scientific | 2025 |
| Blastreat (Arundel) Limited | Construction | 1993 |
| Blenheim Gardens (Chichester) Management Limited | Households | 2018 |
| Blenheim Property Consultants Limited | Real estate | 2017 |
| Blinch Catering Company Ltd | Hospitality | 2023 |
| Blsk Marketing Ltd | Wholesale & retail | 2025 |
| Blue Cedar Tree Surgeons Ltd | Administrative & support | 2018 |
| Blue Lizard Travel Limited | Administrative & support | 2006 |
| Blue Ridge Consultancy Limited | Financial services | 2016 |
| Blue Rose Interior Architecture Ltd | Professional & scientific | 2015 |
| Bognor Counselling and Training CIC | Education | 2022 |
| Boom Bacup Storage Limited | Energy | 2018 |
| Boom Developments Ltd | Construction | 2020 |
| Boom Operations Ltd | Construction | 2020 |
| Boom Power Ltd | Construction | 2019 |
| Boost PAY Limited | Administrative & support | 2010 |
| BPL Contracting Ltd | Administrative & support | 2010 |
| Brambles Construction Ltd | Construction | 2024 |
| Brasii Holdings 1 Limited | Financial services | 2022 |
| Brasii Ltd | Construction | 2020 |
| Brasii Manco (Lodge Farm) Limited | Households | 2023 |
| Breighton Storage Facility Limited | Energy | 2024 |
| Brewery Mews Residents Management Limited | Real estate | 2006 |
| Bridgetree Management Co. Limited | Households | 2022 |
| Bright Minds Calm Hearts Mindful Learning Ltd | Health & social care | 2025 |
| Broadband TV News LLP | | 2010 |
| Broadmark Beach Management Limited | Households | 1985 |
| Broadrelay Limited | Construction | 1990 |
| Brook Gardens Barnham Management Company Limited | Households | 2014 |
| Brookside Integration Ltd | Construction | 2022 |
| BT Concrete Ltd | Construction | 2020 |
| Bucks Bodyshop Ltd | Wholesale & retail | 2015 |
| Build Plus (Sussex) Limited | Construction | 2016 |
| Buildsafe Consulting Ltd | Professional & scientific | 2023 |
| Business Strategy Consulting Limited | Professional & scientific | 2003 |
| C&S 888 Ltd | Hospitality | 2024 |
| C.E.S.Property Investments Limited | Real estate | 1961 |
| Calstan Electrical Limited | Construction | 2019 |
| Calstan Mechanical Limited | Professional & scientific | 2015 |
| Canberra Court Management (Bognor Regis) Limited | Real estate | 2005 |
| Candy Competitions Ltd | Arts & recreation | 2025 |
| Caretopia World Limited | Information & communication | 2025 |
| Carleton Canine Centre Limited | Other services | 2005 |
| Carleton Terrace Management Company Ltd | Households | 2003 |
| Carr Farm Solar Limited | Energy | 2022 |
| Carrog Storage Facility Limited | Energy | 2022 |
| Castle Cars (West Sussex) Ltd | Transport & logistics | 2012 |
| Castle View Accounting Ltd | Professional & scientific | 2020 |
| Cathedral Mews Residents Company Limited | Households | 1991 |
| CB Equine Sales Ltd | Agriculture & fishing | 2025 |
| CBM & Co Accounting Ltd | Professional & scientific | 2022 |
| Chambers Design Studio Ltd. | Professional & scientific | 2011 |
| Changesone Limited | Real estate | 2026 |
| Chanin Mews Management Company Limited | Households | 2012 |
| Chantry Mead Management Company Limited | Households | 2010 |
| Charlene Bastone Ltd | Agriculture & fishing | 2021 |
| Charles H Brice Ltd | Arts & recreation | 2025 |
| Charlie Glover Transport Limited | Wholesale & retail | 2026 |
| Charmwood Solar Farm Limited | Energy | 2022 |
| Chaswell Consultant Services Limited | Financial services | 2010 |
| Chatsmore Court Limited | Households | 1958 |
| Chelsea Storage Ltd | Transport & logistics | 2020 |
| Chesham Place Residents Limited | Households | 2016 |
| Chichester Student Homes Limited | Real estate | 2016 |
| Childerhouse Consulting Ltd | Information & communication | 2014 |
| Church View Walberton Management Limited | Households | 2017 |