| Southern Installation Engineering Ltd | Construction | 2018 |
| Southern Maze Ltd | Construction | 2012 |
| Southern Windows & Doors Ltd | Construction | 2023 |
| SP Smith & Sons Ltd | Transport & logistics | 2025 |
| Specific Sneakers Ltd | Wholesale & retail | 2025 |
| Spice of India Kent Ltd | Hospitality | 2021 |
| Spinflow Metal Spinners Limited | Manufacturing | 2013 |
| SPM Electrical Services Ltd | Construction | 2022 |
| Springs Rock Ltd | Professional & scientific | 2013 |
| SR Plumbing and Heating (South East) Ltd | Construction | 2023 |
| SRD Consult Ltd | Professional & scientific | 2019 |
| SRE Access Ltd | Construction | 2019 |
| SRS Motors Ltd | Manufacturing | 2006 |
| Stanalarms Ltd | Other services | 2018 |
| Stargate Automation Ltd | Extraterritorial | 2011 |
| Stef C Trans Ltd | Transport & logistics | 2019 |
| Sterling Construction Works Ltd | Construction | 2015 |
| Steven William Smith Limited | Extraterritorial | 2024 |
| Stones Coffee Shop Ltd | Hospitality | 2019 |
| Stones Garden Centre Limited | Wholesale & retail | 2016 |
| STR Transport Ltd | Transport & logistics | 2025 |
| Strawbridge Properties Ltd | Real estate | 2015 |
| Strawbridge Shop Fitters Ltd | Construction | 2014 |
| Street Construction Piling Ltd | Construction | 2025 |
| Street Piling Ltd | Construction | 2023 |
| Strickland Holdings Ltd | Professional & scientific | 2019 |
| Stuart FRY Design Limited | Information & communication | 2011 |
| Sullivan Mechanical Limited | Construction | 2015 |
| Sun Studios by Peto’S Ltd | Other services | 2026 |
| Superior Enterprises Limited | Professional & scientific | 2016 |
| Superior Holdings and Investments Limited | Real estate | 2024 |
| Superior Park Holiday Homes Limited | Hospitality | 2017 |
| Superior Park Homes Limited | Hospitality | 2016 |
| Superior Properties and Investments Limited | Real estate | 2023 |
| Superior Refrigeration Engineers Limited | Manufacturing | 2014 |
| Supplying Innovations Limited | Wholesale & retail | 2020 |
| Supreme Bake Ltd | Hospitality | 2014 |
| Surf Haulage Ltd | Water & waste | 2021 |
| Sussex Catering Service Ltd | Hospitality | 2021 |
| SWA (Bartonhill Estate Management) Limited | Real estate | 2021 |
| Swale Cleaning Limited | Administrative & support | 2008 |
| Swale Cricket Community Interest Company | Arts & recreation | 2019 |
| Swale Fire Systems Limited | Construction | 2017 |
| Swale Loft & Extensions Limited | Construction | 2021 |
| Swale Pride Community Interest Company | Arts & recreation | 2018 |
| Swale Tech Limited | Construction | 2015 |
| Swale View Developments Limited | Real estate | 2020 |
| Swiftsure Construction Limited | Construction | 2025 |
| Sylhet Spice Ltd | Hospitality | 2024 |
| Symmetry Gymnastics Club Ltd | Arts & recreation | 2018 |
| Syndale Zwartbles Limited | Agriculture & fishing | 2025 |
| T Gray Brickworks Ltd | Construction | 2018 |
| T L Prime Haulage Ltd | Transport & logistics | 2017 |
| T.A. Flooring and Blinds Ltd | Construction | 2024 |
| T.F.P. Investments Limited | Real estate | 2014 |
| T3T Ltd | Administrative & support | 2017 |
| T8 Plant and Tool Hire Ltd | Construction | 2024 |
| Tails & Hooks Limited | Manufacturing | 2020 |
| TAM Together CIC | Health & social care | 2024 |
| Tam's Journey Ltd | Information & communication | 2022 |
| Target First AID Limited | Health & social care | 2014 |
| Tasha Comps Ltd | Arts & recreation | 2026 |
| Taste of India (Sheppey) Ltd | Hospitality | 2001 |
| Taste Talk Media Ltd | Professional & scientific | 2026 |
| TC Welding and Fabrication Ltd | Professional & scientific | 2025 |
| TDS Construction Health and Safety Services Limited | Construction | 2021 |
| Technology Triumphs Ltd | Education | 2019 |
| TED & Beau Properties Ltd | Real estate | 2023 |
| Teddy Bear Day Care Queenborough Limited | Education | 2024 |
| Tenants Come First Real Estate Investment Limited | Real estate | 2019 |
| Terrace Care Limited | Extraterritorial | 2025 |
| Terrace Group Holdings Limited | Financial services | 2025 |
| Terry Bennett Contract Cleaning Limited | Administrative & support | 2003 |
| THA Goddess Ltd | Information & communication | 2018 |
| THA Transport Ltd | Transport & logistics | 2024 |
| Thameside Services Marine Ltd | Transport & logistics | 2007 |
| That Fast Ltd | Transport & logistics | 2024 |
| THE Art of Wellbeing & Success Ltd | Administrative & support | 2020 |
| THE Chaps Band Limited | Arts & recreation | 2017 |
| THE Chaps Dj's Limited | Arts & recreation | 2023 |
| THE Cloudkeeping Service Limited | Professional & scientific | 2019 |
| THE Crafty Collective Ltd | Wholesale & retail | 2023 |
| THE CYC Coastal Club Ltd | Real estate | 1961 |
| THE DRY Cleaning Centre Ltd | Other services | 2013 |
| THE Fire Club Limited | Professional & scientific | 2025 |
| THE Fish DEN Aquatics Ltd | Wholesale & retail | 2019 |
| THE Glitter Warehouse Ltd | Wholesale & retail | 2018 |
| THE Good Pack Ltd | Real estate | 2010 |
| THE Great British Kiwi Ltd | Hospitality | 2017 |
| THE Heart Group Ltd | Health & social care | 2024 |
| THE Island Learning Trust | Education | 2016 |
| THE Lifting Guys Ltd | Construction | 2015 |
| THE Linked People Limited | Administrative & support | 2019 |
| THE Lions DEN Cafe Ltd | Hospitality | 2019 |
| THE Little Fish DEN Aquatics Ltd | Wholesale & retail | 2023 |
| THE Lord Group Limited | Arts & recreation | 2025 |
| THE Mclarence Group Ltd | Construction | 2023 |
| THE Print Barn Kent Limited | Manufacturing | 2025 |
| THE Print Shop Gifts UK Ltd | Manufacturing | 2021 |
| THE Pyramid Project CIC | Administrative & support | 2015 |