| Boho & Bloom Ltd | Professional & scientific | 2017 |
| Bollen, Bollen & Bollen Limited | Real estate | 2023 |
| Bona Fide Investments Limited | Real estate | 2020 |
| Book Club Associates Ltd | Education | 2026 |
| Borter Ltd | Real estate | 2021 |
| Botley House Ltd | Construction | 2025 |
| Boujong Ltd | Real estate | 2016 |
| BOUND2 Ltd | Administrative & support | 2023 |
| Boundary Court Freeholders (Canterbury) Limited | Households | 2002 |
| Branching OUT (Kent) Limited | Administrative & support | 2016 |
| Branno (Property Holdings) Limited | Real estate | 2025 |
| Brass Pineapple Limited | Information & communication | 2012 |
| Bream Team Ltd | Information & communication | 2010 |
| Breathing and Healing Ltd | Health & social care | 2025 |
| Brenda Gabriel PR Ltd | Professional & scientific | 2022 |
| Brian Leetham Counselling Ltd | Health & social care | 2022 |
| Brian Oakley Limited | Real estate | 1984 |
| Brimtoy Limited | Manufacturing | 2011 |
| Broadley & Barrass Limited | Professional & scientific | 2000 |
| Broker Medical Service Ltd | Wholesale & retail | 2026 |
| Brolen Projects Limited | Administrative & support | 2012 |
| Broomleaf Ltd | Professional & scientific | 2020 |
| Browns Floorings Kent Ltd | Construction | 2018 |
| BRX Ltd | Professional & scientific | 2018 |
| Bryant Plumbing & Heating Limited | Construction | 2018 |
| Bryant Services Ltd | Administrative & support | 2024 |
| Bubble Archiving Ltd | Information & communication | 2023 |
| Bubble Associates Limited | Professional & scientific | 2020 |
| Buchan Contracts Limited | Construction | 2024 |
| Bulldog Ground Screws Ltd | Construction | 2026 |
| Bull’S FBA Ltd | Wholesale & retail | 2025 |
| Bundu Pictures Limited | Administrative & support | 2008 |
| Bunny and Bird Ltd | Hospitality | 2022 |
| Bunsen & Beaker Construction Ltd | Construction | 2020 |
| Burgate Ltd | Extraterritorial | 2012 |
| Burke & Reed Productions Limited | Information & communication | 2023 |
| Burnan Court Residents Company Limited | Households | 1994 |
| Burns Consulting LLP | | 2008 |
| Burwell Grange Limited | Real estate | 2001 |
| Business the Simple Way Ltd | Administrative & support | 2017 |
| Butlers of Kent Holdings Ltd | Transport & logistics | 2021 |
| Butlers of Kent Limited | Transport & logistics | 2015 |
| Buxton & Broadley Renovations Ltd | Construction | 2023 |
| BY Golly It's the Jolly Lovely Lolly Lady Limited | Hospitality | 2015 |
| Byrne Hair & Co Limited | Other services | 2024 |
| BZG Consulting Ltd | Professional & scientific | 2024 |
| C & G Security Solutions Limited | Construction | 2010 |
| C W Casting Limited | Information & communication | 2012 |
| C.A. Construct Limited | Construction | 2026 |
| C.A. Drillers Ltd | Construction | 2000 |
| C.A. Telecom UK Holdings Limited | Construction | 2022 |
| C.A. Telecom UK Limited | Construction | 2006 |
| C.J. Dodds Limited | Construction | 2005 |
| C.S.B. Design Consultants Limited | Professional & scientific | 1995 |
| C.V. Earl Limited | Real estate | 1999 |
| C4C Mobile Ltd | Information & communication | 2014 |
| C65 Limited | Administrative & support | 2015 |
| CA Drillers Holdings Limited | Construction | 2019 |
| CA Fire Protection Ltd | Construction | 2020 |
| CAB Call Centre Thanet Ltd | Transport & logistics | 2011 |
| CAB Despatch Ltd | Information & communication | 2008 |
| Cabco Whitstable Taxi Ltd | Transport & logistics | 2025 |
| Cablescan Limited | Manufacturing | 2001 |
| Cafe Below Limited | Hospitality | 2012 |
| Cal&Co Ltd | Hospitality | 2017 |
| Calibre Defence Ltd | Professional & scientific | 2024 |
| Callout Computers UK Limited | Information & communication | 2015 |
| Callows Plumbing and Heating Ltd | Construction | 2014 |
| Callstera Ltd | Information & communication | 2005 |
| CAM Construction Consultants Limited | Construction | 2010 |
| Cannons Wharf Management Company Limited | Households | 2008 |
| Canterbury Automotive Repair Services Limited | Wholesale & retail | 2020 |
| Canterbury Business Equipment Limited | Wholesale & retail | 1962 |
| Canterbury Industrial Park Association Limited | Real estate | 2003 |
| Canterbury Osteopathy Ltd | Health & social care | 2025 |
| Canterbury Property Holdings Limited | Professional & scientific | 2022 |
| Canterbury Property Investments (1) Limited | Real estate | 2022 |
| Canterbury Property Investments (2) Limited | Real estate | 2022 |
| Canterbury Road Consultants Ltd | Professional & scientific | 2025 |
| Canterbury Tenancy Solutions Ltd | Real estate | 2022 |
| Cantum Biosciences Ltd | Professional & scientific | 2011 |
| Carlton Court (Whitstable) Management Company Ltd | Households | 2012 |
| Carre Group Limited | Real estate | 2024 |
| Carrina Classics Limited | Administrative & support | 2003 |
| Carré Consultancy Limited | Other services | 2016 |
| Castle Court (Canterbury) Holdings Limited | Real estate | 2023 |
| Castle Court (Canterbury) Limited | Real estate | 1973 |
| Castle Road (Whitstable) Flats Limited | Households | 1974 |
| Catalyser Limited | Professional & scientific | 2017 |
| Cathartic Zest Ltd | Hospitality | 2016 |
| Catherine Chapman Ltd. | Health & social care | 2021 |
| Cave Property Company Ltd | Real estate | 2016 |
| Cbcc UK Limited | Wholesale & retail | 2014 |
| CC Portfolio Limited | Real estate | 2024 |
| Cccs U.K. Ltd | Manufacturing | 2014 |
| CD Whitstable Limited | Financial services | 2020 |
| CDS (Kent) Limited | Households | 2015 |
| Centrido Limited | Extraterritorial | 2012 |
| Centrum Residents Management Company Limited | Households | 2006 |
| Ceola Ltd | Real estate | 2023 |