| Boni-Vee Ltd | Wholesale & retail | 2014 |
| Braborne Ltd | Construction | 2007 |
| Brett Cleaning Services (Kent) Limited | Administrative & support | 2021 |
| Brick House Design Ltd | Professional & scientific | 2023 |
| Brickfields Building & Landscaping Limited | Construction | 2019 |
| Bridemead Ltd | Real estate | 2007 |
| Bridestone Ltd | Construction | 2007 |
| Brighton Vinyl Limited | Manufacturing | 2023 |
| Brilliantly Ltd | Wholesale & retail | 2022 |
| British Lion Films Limited | Information & communication | 2023 |
| Britmediagroup Limited | Information & communication | 2021 |
| Brown & Phillips Limited | Professional & scientific | 1938 |
| Browne and Roche Limited | Professional & scientific | 2022 |
| BTY Agriculture Limited | Agriculture & fishing | 2016 |
| Buckingham of Guildford Limited | Wholesale & retail | 2003 |
| Buckland Media Group Limited | Manufacturing | 1974 |
| Buckminster AI Ltd. | Information & communication | 2023 |
| Bumper 2 Bumper Limited | Manufacturing | 2016 |
| Bush Family Continuation Limited | Real estate | 2025 |
| Bush Plumbing (Kent) Ltd | Construction | 2016 |
| Busiprint Ltd | Manufacturing | 2024 |
| BY Lyon Limited | Other services | 2025 |
| Bygga BO Bakery Limited | Manufacturing | 2026 |
| C J Gray Building Contractors Ltd | Construction | 2013 |
| C KAY Limited | Other services | 2012 |
| C Relf Maintenance Ltd | Manufacturing | 2026 |
| C1 Services Limited | Construction | 2021 |
| Cadogan Wines Limited | Wholesale & retail | 2011 |
| Calabash Craft Ltd | Wholesale & retail | 2018 |
| Campbells Auto Services Limited | Administrative & support | 2009 |
| Campbells of Deal Limited | Wholesale & retail | 1976 |
| Campona Transport Ltd | Transport & logistics | 2025 |
| Candient (UK) Ltd | Information & communication | 2013 |
| Cannon Street Garage Ltd | Wholesale & retail | 2025 |
| Canterbury Local Link Limited | Real estate | 2010 |
| Canterbury Luxury Properties Ltd | Real estate | 2022 |
| Captain's Garden CIC | Arts & recreation | 2024 |
| Caraccios Hair and Beauty Limited | Other services | 2013 |
| Caraserve Kent Ltd | Manufacturing | 2025 |
| Care and Normalisation Limited | Health & social care | 1990 |
| Care Research Limited | Information & communication | 2018 |
| Carey Ambrose Limited | Construction | 2008 |
| Carl Denne Properties Ltd | Real estate | 2022 |
| Carli’S Baby Consultancy Ltd | Health & social care | 2023 |
| Carmody Logistics Ltd | Administrative & support | 2020 |
| Cartmel Enterprises Limited | Information & communication | 2016 |
| Casa Raki Limited | Manufacturing | 2018 |
| Casara Holdings Ltd | Households | 2021 |
| Castle Cottage Ltd | Hospitality | 2022 |
| Castle Limited | Transport & logistics | 2005 |
| Castles Shredding Limited | Water & waste | 2014 |
| Cathedral Gate Hotel Canterbury Ltd | Hospitality | 2026 |
| Catinsight Ltd | Financial services | 2016 |
| Cave South Ltd | Real estate | 2024 |
| CB Electrical Services (Kent) Limited | Construction | 2025 |
| Central Design Studio Limited | Professional & scientific | 2011 |
| CGW Accountants Limited | Professional & scientific | 2019 |
| Chantilly's Ltd | Manufacturing | 2017 |
| Charlie Dene Group Ltd | Construction | 2019 |
| Chasewell Flats RTM Company Limited | Households | 2025 |
| Cherry Selley Ltd | Wholesale & retail | 2024 |
| Chimi Limited | Hospitality | 2019 |
| Chimney Breast Removal UK Ltd | Construction | 2025 |
| Chinsurah Ventures Ltd | Professional & scientific | 2018 |
| Chloe’S Aesthetics and Skincare Ltd | Other services | 2023 |
| Chris KAY Limited | Other services | 2012 |
| Christopher Perera Ltd | Health & social care | 2006 |
| Chute Creative Ltd | Professional & scientific | 2015 |
| Cimbom BOM Limited | Hospitality | 2025 |
| Cinque Ports Sports Limited | Arts & recreation | 2020 |
| Circumference Ltd | Construction | 2024 |
| Ciya Deal Limited | Hospitality | 2018 |
| CJ Mcgibbon Properties Limited | Real estate | 2012 |
| Cj's Roofing Ltd | Construction | 2020 |
| Ckear Properties Ltd | Real estate | 2016 |
| Claire Davies Pharma Consulting Limited | Professional & scientific | 2016 |
| Claremont House Walmer Limited | Households | 2004 |
| Clarity Consult Limited | Professional & scientific | 2024 |
| Clarity Professional Ltd | Professional & scientific | 2019 |
| Clarity Utilities Limited | Construction | 2025 |
| Classon and Co Limited | Administrative & support | 2026 |
| Clayfolk Studios Ltd | Education | 2025 |
| Clean Legacy Limited | Administrative & support | 2025 |
| Clear Path Legal Associates Ltd | Professional & scientific | 2026 |
| Clmn Ltd | Professional & scientific | 2026 |
| Cloudcam UAV Ltd | Professional & scientific | 2017 |
| CLS Physiotherapy Limited | Health & social care | 2015 |
| CM Robinson Solicitors Limited | Professional & scientific | 2012 |
| CMB Water Limited | Manufacturing | 2001 |
| CMR Clinical Data Services Ltd | Information & communication | 2021 |
| Coached by ZOE Ltd | Arts & recreation | 2023 |
| Coastal Fitness Deal Ltd | Arts & recreation | 2025 |
| Coastal Healthcare Kent Ltd | Health & social care | 2023 |
| Coastal Transport Group Ltd | Transport & logistics | 2023 |
| Coldblow Holdings Limited | Professional & scientific | 2013 |
| Commercial Development South East Ltd | Construction | 2024 |
| Company Box Ltd | Other services | 2022 |
| Connect U Limited | Information & communication | 2003 |
| Connectaway Ltd | Information & communication | 2022 |
| Conquest Construction Limited | Construction | 2020 |