| Sunridge Management Ltd | Professional & scientific | 2024 |
| Sunset Fish Bar Margate Ltd | Hospitality | 2023 |
| Sunsethouse Nursery Ltd | Health & social care | 2026 |
| Surrey Construction Consultants Limited | Construction | 2024 |
| Survey & Maintenance Services Ltd | Manufacturing | 2014 |
| Sustainacore Ltd | Construction | 2025 |
| SV Carenage Ltd | Transport & logistics | 2026 |
| SVD Carpentry and Plastering Limited | Construction | 2025 |
| SVH Northdown Ltd | Households | 2020 |
| SW Eyecare Limited | Health & social care | 2013 |
| Swatt Solutions Ltd | Construction | 2007 |
| Sweet Carolines Dessert House Ltd | Hospitality | 2021 |
| Sweet Senses Ltd | Wholesale & retail | 2018 |
| SWM Mortgages Ltd | Financial services | 2025 |
| Sycon UK Limited | Administrative & support | 2009 |
| Symonds Property Solutions Limited | Real estate | 2021 |
| Synchronous Orange Limited | Manufacturing | 2022 |
| Syncquest Solutions Ltd | Professional & scientific | 2024 |
| Syriano Afendi Ltd | Hospitality | 2023 |
| System Cash Registers Limited | Wholesale & retail | 1975 |
| T CAB Ltd | Transport & logistics | 2024 |
| T. HAY Electrical Limited | Mining & quarrying | 2016 |
| T.E.O.T.A.L Limited | Professional & scientific | 2018 |
| T.U.R.T.L.E Veterinary Services Ltd | Professional & scientific | 2024 |
| T4M Agritech Ltd | Agriculture & fishing | 2016 |
| Tagg Team Limited | Information & communication | 2015 |
| Take Away Butcher Foods Ltd | Hospitality | 2025 |
| Talbot Tax Chambers Limited | Professional & scientific | 2014 |
| Talking Edge Studios Limited | Information & communication | 2012 |
| Taller & White Ltd | Real estate | 2025 |
| Tango Rooms Limited | Professional & scientific | 2021 |
| Tankonjalla Ltd | Health & social care | 2024 |
| Tanuja Travel Limited | Administrative & support | 2007 |
| Tappan Search Partners Ltd | Administrative & support | 2017 |
| Tara Design-Installation-Maintenance Ltd | Construction | 2024 |
| Tardigrade Studios Limited | Real estate | 2024 |
| Target Fundraising Services Ltd | Professional & scientific | 2019 |
| Tavrix Group Limited | Wholesale & retail | 2025 |
| Taylor Offshore Solution Ltd | Professional & scientific | 2022 |
| Taylor Travel Ltd | Transport & logistics | 2014 |
| Taylor'D Rail and Civils Ltd | Construction | 2026 |
| TBC POP UP Ltd | Hospitality | 2026 |
| TBG Building and Groundworks Limited | Construction | 2020 |
| TBS POP UP Limited | Hospitality | 2019 |
| TD Southeast Ltd | Construction | 2021 |
| TDT Maintenance Ltd | Construction | 2020 |
| Teall Transport (UK) Limited | Transport & logistics | 2010 |
| Team Tasha Fitness Community Interest Company | Arts & recreation | 2020 |
| Teanos Ltd | Hospitality | 2025 |
| Tedd Interiors and Renovations Ltd | Administrative & support | 2017 |
| Teekay Solutions Limited | Health & social care | 2014 |
| Teenie Bash Limited | Wholesale & retail | 2025 |
| Telco Development Services Limited | Information & communication | 2014 |
| Telegramme Ltd | Arts & recreation | 2026 |
| Telegramme Paper Co. LLP | | 2015 |
| Telltails Limited | Manufacturing | 2012 |
| Temperance Care Limited | Health & social care | 2004 |
| Tend Toward Justice CIC | Professional & scientific | 2025 |
| Tenfour Accountancy Ltd | Professional & scientific | 2026 |
| Terpsichorean Limited | Arts & recreation | 2017 |
| Terrace View Leasehold and Management Company Ltd | Households | 2017 |
| Tessie Plumbing & Heating Ltd | Other services | 2017 |
| TGS Capital Ltd | Financial services | 2025 |
| Thames Street Works Ltd | Construction | 2011 |
| Thanet Building and Groundworks Limited | Construction | 2018 |
| Thanet Caravan Storage Limited | Transport & logistics | 2024 |
| Thanet Cleaning Services Ltd | Administrative & support | 2023 |
| Thanet Coastal Homes Ltd | Hospitality | 2025 |
| Thanet Electrical Ltd | Construction | 2025 |
| Thanet Enterprise Group Ltd | Real estate | 2016 |
| Thanet Excursions Ltd | Administrative & support | 2026 |
| Thanet Hand Car Wash Ltd | Wholesale & retail | 2023 |
| Thanet Heating Company Ltd | Construction | 2011 |
| Thanet Indoor Bowls Club Limited | Arts & recreation | 2008 |
| Thanet Kebab Limited | Hospitality | 2013 |
| Thanet Keys Ltd | Hospitality | 2007 |
| Thanet Nutrition Ltd | Hospitality | 2019 |
| Thanet Parkour Academy CIC | Education | 2020 |
| Thanet Shutters Ltd | Construction | 2021 |
| Thanet Tints Limited | Wholesale & retail | 2025 |
| Thanet United FC Ltd | Arts & recreation | 2019 |
| Thanet.Digital Limited | Information & communication | 2021 |
| Thanetbrightstart Community Interest Company | Arts & recreation | 2020 |
| Thanetchildcare Limited | Education | 2011 |
| Thanetchildcareramsgate Limited | Education | 2016 |
| Thanetdoesit CIC | Professional & scientific | 2024 |
| Thao Thao Kitchen Ltd | Hospitality | 2022 |
| THE Accommodation Team Medway Limited | Households | 2015 |
| THE Beau SET Co Ltd | Professional & scientific | 2025 |
| THE Bedding Hub Limited | Wholesale & retail | 2025 |
| THE Bennell Company Limited | Information & communication | 2007 |
| THE Best Fish and Chips Cheriton Ltd | Hospitality | 2019 |
| THE BUS Café Ltd | Hospitality | 2016 |
| THE Ceramic Arcade Ltd | Wholesale & retail | 2023 |
| THE Certified Window Co Ltd | Construction | 2019 |
| THE Couture Corporation Limited | Hospitality | 1997 |
| THE Crystal Fairy Company LLP | | 2007 |
| THE Cygnet (Kent) Ltd | Real estate | 2022 |
| THE Forex Lounge Ltd | Financial services | 2019 |
| THE Forge Canterbury Ltd | Construction | 2026 |