| Sambal Shiok Limited | Hospitality | 2016 |
| Sapphire Personalised Prints Ltd | Manufacturing | 2025 |
| Sauly Events Limited | Administrative & support | 2022 |
| SC Contracts Limited | Construction | 2007 |
| Seaco Investments Limited | Other services | 2025 |
| Seaside Playcafe Limited | Hospitality | 2026 |
| SEC Operations Limited | Manufacturing | 2009 |
| Secure Cortex Ltd | Professional & scientific | 2025 |
| Serviceweb Ltd. | Other services | 1997 |
| Sfbb Systems Limited | Professional & scientific | 2007 |
| Shared Knowledge Solutions Limited | Information & communication | 2007 |
| Shaw Rabson & Company Ltd | Real estate | 2003 |
| Shepway Heating Ltd | Construction | 2018 |
| Shepway Scrubbers Ltd | Administrative & support | 2019 |
| Shoe Gleam Limited | Wholesale & retail | 2017 |
| Shree Bahuchara Limited | Wholesale & retail | 2019 |
| Shurlukit Trading Ltd | Hospitality | 2022 |
| Si-Leck Auto Electrical Limited | Manufacturing | 2022 |
| Sienna Rose Products Ltd | Wholesale & retail | 2020 |
| Sierra Socials Ltd | Professional & scientific | 2025 |
| Signature Tax and Accounting Ltd | Professional & scientific | 2026 |
| Simba Land Co Ltd | Real estate | 2026 |
| Simoni Construction Ltd | Construction | 2022 |
| Simply Easy Refurbs Limited | Construction | 2018 |
| Simplyeasy Cleaning Limited | Other services | 2019 |
| Simplyeasy Refurbs Construction Limited | Construction | 2023 |
| Siteseal (Thorne) Limited | Construction | 2019 |
| SJB Safety Services Ltd | Construction | 2020 |
| SK Islington Limited | Hospitality | 2020 |
| Skydon Homes Ltd | Hospitality | 2022 |
| Skylark Estate Investments UK Ltd | Real estate | 2025 |
| SMF Estates Limited | Real estate | 2017 |
| SNS Paper Mills Limited | Hospitality | 2017 |
| Social Workforce Limited | Extraterritorial | 2012 |
| South Coast Glazing Ltd | Construction | 2020 |
| Sparkly Whites Limited | Administrative & support | 2023 |
| Spatial Future Architects Limited | Construction | 2021 |
| Standard Event Solutions Ltd | Administrative & support | 2024 |
| Stealth Tiling Tools Ltd | Wholesale & retail | 2024 |
| Steamtec Ltd | Administrative & support | 2009 |
| Stephen Hill MID Kent Limited | Professional & scientific | 2000 |
| Stonelea Limited | Administrative & support | 2020 |
| Stratcap Limited | Professional & scientific | 1989 |
| Style & Substance Ltd | Wholesale & retail | 2005 |
| Suresky Ltd | Information & communication | 2008 |
| Surrey GAS Services Limited | Construction | 2017 |
| Synapsia Limited | Education | 2011 |
| Synergy Trucking Limited | Transport & logistics | 1998 |
| T MAY Transport Ltd | Transport & logistics | 2018 |
| Take the Lead Romney Marsh Limited | Other services | 2016 |
| Tarts Fisheries Limited | Agriculture & fishing | 2019 |
| Tellec Limited | Real estate | 2011 |
| Tenterden Sun B Limited | Other services | 2024 |
| That Pet Shop Limited | Wholesale & retail | 2010 |
| THE Actives Team Limited | Information & communication | 2017 |
| THE Black CAB Coffee Company Limited | Hospitality | 2013 |
| THE Campus People Limited | Professional & scientific | 2018 |
| THE Chairman New Romney Ltd | Other services | 2023 |
| THE Cleaning AGENCY1 Limited | Administrative & support | 2021 |
| THE Computer People Ltd | Information & communication | 2014 |
| THE Curtain Lady Interiors Limited | Wholesale & retail | 2010 |
| THE GP Locum Agency Ltd | Administrative & support | 2013 |
| THE Healthcare Trainer Group Ltd | Extraterritorial | 2015 |
| THE House of Beauty Hythe Limited | Other services | 2016 |
| THE Laundry Room Kent 1 Ltd | Other services | 2024 |
| THE Laurels Management Company (Kent) Limited | Households | 2015 |
| THE Marsh Academy | Education | 2007 |
| THE Oak Lydd Limited | Hospitality | 2019 |
| THE Old Bank of Interiors Ltd | Wholesale & retail | 2026 |
| THE Property Investor Resource Centre Ltd | Other services | 2019 |
| THE Ship Hotel New Romney Ltd | Hospitality | 2024 |
| Thelastthought Ltd | Information & communication | 2025 |
| Thika General Store Ltd | Wholesale & retail | 2025 |
| Think Forward Production Limited | Professional & scientific | 2024 |
| Thirty North Road (TNR) Ltd | Hospitality | 2015 |
| Tierra (Selsdon Road) Limited | Construction | 2016 |
| Tilers Community Group Ltd | Administrative & support | 2024 |
| Tillson Marine Consultants Limited | Transport & logistics | 2017 |
| TIM Simpson Consulting Ltd | Professional & scientific | 2015 |
| Tim's Global Limited | Wholesale & retail | 2009 |
| Timeline Events Limited | Professional & scientific | 2017 |
| Tlchealth Ltd | Health & social care | 2024 |
| TN90S Festival Ltd | Administrative & support | 2024 |
| Toke's Chipping Campden Ltd | Wholesale & retail | 2025 |
| Top Banana Services Ltd | Manufacturing | 2021 |
| Topcat Solutions Ltd | Professional & scientific | 2023 |
| TQB Limited | Public administration | 2021 |
| Tracc Media Limited | Information & communication | 2017 |
| Trainer Courses Ltd | Education | 2011 |
| Trainerquals Ltd | Administrative & support | 2013 |
| Transeurope Sales Limited | Construction | 2005 |
| Trees R US Limited | Agriculture & fishing | 2015 |
| Trench CUT Ltd | Administrative & support | 2012 |
| Truck Life Solutions Ltd | Professional & scientific | 2025 |
| Trueline Engineers Limited | Manufacturing | 2017 |
| Tungsten Tough Limited | Wholesale & retail | 2018 |
| TW Roofing Services Ltd | Construction | 2022 |
| TW Static Solutions Ltd | Transport & logistics | 2025 |
| Twisted Origination Limited | Manufacturing | 2013 |
| Tyrrell Builders Limited | Real estate | 2001 |