| Structural Building Solutions Ltd | Construction | 2008 |
| Structured Network Solutions UK Limited | Information & communication | 1999 |
| Studio by Charles Ltd | Wholesale & retail | 2025 |
| Studio Elements Limited | Wholesale & retail | 2023 |
| Studio Heft Ltd | Information & communication | 2025 |
| Studio Sorella Limited | Hospitality | 2019 |
| Style & Design Windows & Doors Limited | Wholesale & retail | 2006 |
| Success Resources Ventures Limited | Real estate | 2019 |
| Suffolk Court Limited | Real estate | 2005 |
| Summer Court (Swalecliffe) Management Company Limited | Real estate | 2002 |
| Sunbox (Kent) Limited | Administrative & support | 2014 |
| Sungod Solar Ltd | Construction | 2010 |
| Sunny and Seventy Eight Ltd | Professional & scientific | 2023 |
| Sunny B'Z Ltd | Other services | 2024 |
| Sunrise Sunset Foods Limited | Hospitality | 2018 |
| Sunset Chicken Limited | Hospitality | 2019 |
| Supermaids Domestic Cleaning Services Limited | Administrative & support | 2011 |
| Support & Change Ltd | Professional & scientific | 2024 |
| Support in Pharmacovigilance Limited | Public administration | 2000 |
| Supreme Lift Services Ltd | Professional & scientific | 2021 |
| Supremus Property Limited | Real estate | 2022 |
| Supremus Technology Limited | Manufacturing | 2013 |
| SW Media Enterprises Limited | Professional & scientific | 2010 |
| Swagga Dance Limited | Arts & recreation | 2019 |
| Swalecliffe Barber Ltd | Other services | 2026 |
| Swann Virtual Assistance Limited | Administrative & support | 2021 |
| Sweets From Evan Limited | Wholesale & retail | 2017 |
| Swift Surveying & Estimating Ltd | Administrative & support | 2011 |
| SWL Systems Limited | Information & communication | 2011 |
| Swobbit Europe Limited | Wholesale & retail | 2007 |
| T & V Fishing Limited | Agriculture & fishing | 2002 |
| T P S Rail Solutions Ltd | Professional & scientific | 2015 |
| T&S Business Associates Ltd | Education | 2013 |
| T.S Gold Ltd | Education | 2026 |
| Talk Money Limited | Financial services | 2004 |
| Talkology Communications & Media Limited | Information & communication | 2017 |
| Talpa Civils Ltd | Extraterritorial | 2024 |
| Tamago Limited | Hospitality | 2013 |
| Tamagosan Ltd | Hospitality | 2025 |
| Tandemcourt Limited | Administrative & support | 1988 |
| Tankerton Court Limited | Households | 1995 |
| Tankerton Founders Limited | Real estate | 2025 |
| Tankerton Heights Limited | Households | 2000 |
| Tankerton Kebab Ltd | Hospitality | 2013 |
| Tankerton Lisa Court Limited | Households | 1976 |
| Tankerton Road Property Management Limited | Real estate | 2004 |
| Task Monitoring Ltd | Real estate | 2008 |
| Tasknetics Ltd | Professional & scientific | 2025 |
| Taste of India Cafe Ltd | Hospitality | 2024 |
| TAY Control Engineering Limited | Professional & scientific | 2015 |
| TCG Bubble Ltd | Wholesale & retail | 2026 |
| TDR Transportation Ltd | Transport & logistics | 2021 |
| TDW Logistics Limited | Administrative & support | 2013 |
| Tektaal Ltd | Construction | 2013 |
| Templegate Recruitment Limited | Administrative & support | 2016 |
| TEN Foot Way Limited | Wholesale & retail | 2022 |
| Tender Loving Carers Domiciliary Limited | Health & social care | 2002 |
| Terry Thomas Financial Services Ltd | Financial services | 2016 |
| Thai Orchid Whitstable Ltd | Hospitality | 2017 |
| Thai Orchid Whitstable Property Ltd | Hospitality | 2022 |
| Thames House Whitstable Ltd | Real estate | 2024 |
| Thames Valley Zinc Roofing Specialists Ltd | Construction | 2024 |
| Thanet Building Solutions Ltd | Construction | 2024 |
| Thanet Cars Ltd | Transport & logistics | 2010 |
| Thanet Cars Margate Ltd | Transport & logistics | 2011 |
| Thanet Cars Westgate Ltd | Transport & logistics | 2011 |
| Thanet Taxis Ltd | Transport & logistics | 2010 |
| Thatcher Accountancy Services Limited | Professional & scientific | 2017 |
| THE Abbey (Ashurst Wood) Limited | Real estate | 2007 |
| THE Adhd Nurse Specialist Ltd | Health & social care | 2026 |
| THE Barber Chop Kent Ltd | Other services | 2023 |
| THE Beach Cafe Ltd | Hospitality | 2011 |
| THE Bear and Chicken Properties Ltd | Real estate | 2021 |
| THE Beautiful Birth Partnership Ltd | Education | 2022 |
| THE Beauty Barber Limited | Other services | 2018 |
| THE BED Butler Limited | Wholesale & retail | 2010 |
| THE Blind Company Kent Ltd | Construction | 2014 |
| THE Box Whitstable Ltd | Arts & recreation | 2022 |
| THE Bright Thoughts Company Limited | Information & communication | 2021 |
| THE Castle PRE School Whitstable Ltd | Health & social care | 2024 |
| THE Cell Promotions Ltd | Administrative & support | 2025 |
| THE Ceramic Company Whitstable Ltd | Manufacturing | 2025 |
| THE Chapel (Faversham) Management Limited | Households | 2019 |
| THE Chase (Joy Lane) Management Company Limited | Households | 2007 |
| THE Chell Group Ltd | Wholesale & retail | 2020 |
| THE Cloisters RTM Company Limited | Households | 2010 |
| THE Content Skool Ltd | Administrative & support | 2020 |
| THE Copy Shoppe (West Malling) Limited | Manufacturing | 2014 |
| THE Cosmic Sailor Limited | Hospitality | 2025 |
| THE Crafty Duck Limited | Manufacturing | 2017 |
| THE Creative Awards Consultancy Limited | Administrative & support | 2011 |
| THE Crispin Inn Ltd | Hospitality | 2021 |
| THE Croffle Club Limited | Hospitality | 2026 |
| THE Deal Board Ltd | Real estate | 2025 |
| THE Disadvantaged Children's C.I.C. | Health & social care | 2024 |
| THE Drum Inn (Stanford) Limited | Hospitality | 2021 |
| THE Enchanted Gardens CIC | Arts & recreation | 2025 |
| THE Epsom Bakehouse Ltd | Education | 2021 |
| THE Event Umbrella Limited | Arts & recreation | 2005 |
| THE Fairways (Molehill Road) Management Company Limited | Households | 1999 |