| Swale Academies Trust | Education | 2010 |
| Swale Business Awards | Administrative & support | 2018 |
| Swale Fishermen Ltd | Other services | 2015 |
| Swale Fitness Limited | Extraterritorial | 2017 |
| Swale Landscaping Ltd | Administrative & support | 2018 |
| Swale Marina Services Limited | Administrative & support | 2002 |
| Swale Podiatry Foot Clinic Ltd | Education | 2021 |
| Swale Power Services Ltd | Construction | 2025 |
| Swale Power Solutions Limited | Real estate | 2020 |
| Swale Property Development Co Ltd | Households | 2015 |
| Swale Rainbow Homes Ltd | Real estate | 2021 |
| Swale Services Ltd | Manufacturing | 2025 |
| Swalethics Limited | Information & communication | 2022 |
| Swan Aesthetics Ltd | Other services | 2023 |
| Swan Assets Ltd | Real estate | 2020 |
| Swann Construction (UK) LLP | | 2007 |
| Swann Construction Co. Limited | Construction | 1981 |
| Swedish Delicatessen (London) Limited | Manufacturing | 1972 |
| Sweeep Kuusakoski Limited | Water & waste | 2006 |
| Sweeping Beauty Ltd | Administrative & support | 2026 |
| Sweet Course Ltd | Wholesale & retail | 2023 |
| Swell Cafe Ltd | Hospitality | 2025 |
| Swell Glow Limited | Professional & scientific | 2023 |
| Swiftune Engineering Limited | Professional & scientific | 2000 |
| Swim Business Holdings Limited | Financial services | 2010 |
| Swim Consulting Limited | Professional & scientific | 2010 |
| Swim Staffing Limited | Administrative & support | 2010 |
| Swoot Ltd | Education | 2025 |
| SWS Clinic Ltd | Health & social care | 2024 |
| SXM Innovations Limited | Wholesale & retail | 2025 |
| Sydeco Ltd | Transport & logistics | 2025 |
| Sylhetmasala Ltd | Hospitality | 2026 |
| Sylvan Property Investments Ltd | Real estate | 2024 |
| Syndale Farm Limited | Real estate | 2020 |
| Synecore Ltd | Other services | 2005 |
| Sysprop Ltd | Real estate | 2008 |
| Szpunt Medical Services Limited | Health & social care | 2011 |
| T & a Brothers Ltd | Wholesale & retail | 2018 |
| T & a Property Investment Limited | Real estate | 2023 |
| T & R Electrical Limited | Construction | 2019 |
| T 2 Rental Ltd | Other services | 2020 |
| T J Skips Ltd | Water & waste | 2015 |
| T M S Surfacing Limited | Water & waste | 2017 |
| T Marku Ltd | Construction | 2024 |
| T&A Retailers Ltd | Wholesale & retail | 2024 |
| T&D Solutions Limited | Real estate | 2017 |
| T&L Rogers Ltd | Professional & scientific | 2018 |
| T&R Merchandising Ltd | Manufacturing | 2017 |
| T&R Sports for ALL Ltd | Education | 2024 |
| T&T (Tribe and Taste) Restaurant Limited | Hospitality | 2025 |
| T. Nunn Interiors Limited | Construction | 2005 |
| T. Body JNR (Plant Hire) Limited | Construction | 1997 |
| T2 Beauty & Nails Ltd | Other services | 2023 |
| T2 Fire Risk Assessors UK Limited | Public administration | 2016 |
| Taahora Limited | Wholesale & retail | 2017 |
| Taekwondo Sports Ltd | Arts & recreation | 2012 |
| TAIJID3 Limited | Health & social care | 2013 |
| Take 2 Hair & Beauty Ltd | Other services | 2016 |
| Talan Foods Limited | Hospitality | 2025 |
| Tamar Support Services Limited | Health & social care | 2018 |
| Tamid Limited | Administrative & support | 2021 |
| Tamils Property Limited | Real estate | 2022 |
| Tamrin Holdings Limited | Professional & scientific | 2014 |
| TAN 'N' Tone (Kent) Limited | Other services | 2012 |
| Tanner Consultancy Ltd | Professional & scientific | 2025 |
| Tanya Ltd | Wholesale & retail | 2025 |
| Tapiwa Health Ltd | Health & social care | 2021 |
| Target Finders Limited | Information & communication | 1994 |
| Tasha's Treats Ltd | Hospitality | 2024 |
| Tatler Skillen Ltd | Real estate | 2023 |
| Tattoo Start-Up Service Ltd | Education | 2024 |
| Tawny Rise Management Company Limited | Households | 2023 |
| Tayi Healthcare Limited | Health & social care | 2016 |
| Taylor Brothers (Holdings) Limited | Professional & scientific | 1992 |
| Taylor Brothers Limited | Construction | 1990 |
| Taylor Plant Hire Limited | Administrative & support | 2018 |
| Taylorsurfaces Ltd | Construction | 2024 |
| TB Gaming Limited | Arts & recreation | 2022 |
| TCM Civils Ltd | Construction | 2016 |
| Tcshares Limited | Health & social care | 2020 |
| TD Carpentry Solutions Ltd | Manufacturing | 2024 |
| Team Storey Management Ltd | Real estate | 2016 |
| Teamo Property Ltd | Real estate | 2022 |
| Teamo Ventures Ltd | Financial services | 2021 |
| Teamtask Direct Marketing Limited | Information & communication | 2005 |
| Teamzx Ltd | Information & communication | 2021 |
| TEC Consulting Ltd | Administrative & support | 2012 |
| TEC Istanbul Ltd | Education | 2024 |
| TEC Lifts Limited | Extraterritorial | 2015 |
| TECH2GO Ltd | Manufacturing | 2025 |
| Technifire Systems Ltd | Other services | 2026 |
| TECHQUEST24 Ltd | Information & communication | 2023 |
| Techserve Holdings Ltd | Administrative & support | 2026 |
| Tecmed Consultancy Ltd | Information & communication | 2018 |
| Tecnis Academy Limited | Education | 2017 |
| Teeboss Consult Limited | Professional & scientific | 2008 |
| Teezee Healthcare Ltd | Other services | 2017 |
| Telerom Media Ltd | Wholesale & retail | 2020 |
| Tempest Trading Limited | Professional & scientific | 2022 |
| Tenda Investment Ltd | Wholesale & retail | 2020 |