| ST James Contracts Limited | Real estate | 2002 |
| ST Raphael Technology Limited | Information & communication | 2019 |
| Stangrigoriev Ltd | Manufacturing | 2023 |
| Star Drivers Ltd | Administrative & support | 2025 |
| Star Lyte Homes Assets Ltd | Real estate | 2023 |
| Stargaze Beauty Limited | Other services | 2024 |
| Starlinkhadjimotor Ltd | Wholesale & retail | 2022 |
| Starz Care Ltd | Health & social care | 2019 |
| Starz Cleaning Services Ltd | Administrative & support | 2018 |
| Starz Homes Limited | Real estate | 2023 |
| STC Logistik Ltd | Transport & logistics | 2018 |
| Stear Aesthetics Ltd | Health & social care | 2022 |
| Stella Skips Ltd | Water & waste | 2023 |
| Stellar Cargos Ltd | Transport & logistics | 2026 |
| Stepping Stones Care Solution Ltd | Health & social care | 2015 |
| Steve Attard Site Management Ltd | Construction | 2018 |
| Stonepay Solutions Limited | Other services | 2024 |
| Stonyrose Limited | Administrative & support | 2018 |
| Straqs Ltd | Administrative & support | 2016 |
| Strategic Insights Consultancy Limited | Real estate | 2023 |
| Strebord Limited | Wholesale & retail | 2000 |
| Successland Tutoring Limited | Education | 2020 |
| Sundayfest Studios Limited | Information & communication | 2019 |
| Super B Plus Group Ltd | Wholesale & retail | 2021 |
| Super-Excellent Business Limited | Wholesale & retail | 2020 |
| Supply Extract Air Ductwork Ltd | Administrative & support | 2011 |
| Suredata Consulting Ltd | Professional & scientific | 2014 |
| Surevalueestate Limited | Real estate | 2022 |
| SV Smart Homes Ltd | Real estate | 2020 |
| Svhl Corporation Ltd | Wholesale & retail | 2025 |
| Svhl Ltd | Administrative & support | 2020 |
| Sylhet Housing Limited | Real estate | 2024 |
| T Kipaker Ltd | Health & social care | 2018 |
| T&T Enterprise Ltd | Public administration | 2021 |
| Taabs Investment UK Limited | Wholesale & retail | 2019 |
| Tabernacle of Ambassadors for Christ (Arena of Solutions) | Other services | 2019 |
| Tabs-G Ltd | Health & social care | 2022 |
| Tabso Limited | Transport & logistics | 2016 |
| Tafa Ltd | Wholesale & retail | 2020 |
| Tajk Services Ltd | Construction | 2023 |
| Talokin Limited | Administrative & support | 2019 |
| Tamdi Build Ltd | Construction | 2020 |
| Tarsal Limited | Construction | 2023 |
| Taylormade Servicing Limited | Energy | 2026 |
| TAZ Transport Ltd | Transport & logistics | 2021 |
| Tb&J Courier Services Ltd | Transport & logistics | 2014 |
| TDA Trans Ltd | Transport & logistics | 2021 |
| Teamwork Productions Limited | Arts & recreation | 2018 |
| Tenderwell Care Ltd | Extraterritorial | 2026 |
| TET Group Ltd | Real estate | 2020 |
| TET Property Group Ltd | Real estate | 2024 |
| Texalex Ltd | Transport & logistics | 2018 |
| Textile Group Limited | Wholesale & retail | 2018 |
| Textile Logistics Limited | Transport & logistics | 2012 |
| TG Construction Ltd | Construction | 2022 |
| Thames Opera Company Ltd | Education | 2020 |
| THE Arlingtons Property Management Ltd | Real estate | 2024 |
| THE Capstan Centre Management Company Limited | Construction | 1990 |
| THE Easternhub Limited | Wholesale & retail | 2021 |
| THE Founder Academy Limited | Information & communication | 2025 |
| THE Good China Ltd | Wholesale & retail | 2025 |
| THE Hair and Body Shop Limited | Wholesale & retail | 2024 |
| THE Incorruptible Seed Church | Other services | 2022 |
| THE Incorruptible Seed Community Network Ltd | Other services | 2023 |
| THE Masterologist Limited | Administrative & support | 2019 |
| THE Purple Stitch Ltd | Wholesale & retail | 2025 |
| THE Redeemed Christian Church of GOD, Garden of Fruitfulness | Other services | 2014 |
| THE Root Mhsf Community Interest Company | Professional & scientific | 2012 |
| THE87FINANCE Ltd | Professional & scientific | 2020 |
| Thurrock Helping Hands | Health & social care | 2016 |
| Thurrock Property Maintenance & Extensions Ltd | Construction | 2022 |
| Tiberiu Transport Ltd | Transport & logistics | 2021 |
| Tidel Healthcare Limited | Health & social care | 2025 |
| Tilbury AVR Ltd | Wholesale & retail | 2017 |
| Tilbury Cash & Carry Limited | Wholesale & retail | 2026 |
| Tilbury Distribution Ltd | Extraterritorial | 2016 |
| Tilbury Education & Cultural Association | Education | 2017 |
| Tilbury Essex Ltd | Hospitality | 2020 |
| Tilbury on the Thames Trust | Arts & recreation | 2016 |
| Tilbury Scaffolding Limited | Construction | 2014 |
| Tilbury Scaffolding Sales Limited | Wholesale & retail | 2023 |
| Tilbury Town Hand Car Wash Ltd | Other services | 2018 |
| Tilbury Trading Limited | Water & waste | 2019 |
| Tilburygroup Limited | Wholesale & retail | 2023 |
| TIME2TIME Service Limited | Health & social care | 2017 |
| Timeforlearning Ltd | Education | 2023 |
| Tina Care Services Limited | Health & social care | 2022 |
| Tinukace Foods Limited | Wholesale & retail | 2016 |
| Tipher Limited | Wholesale & retail | 2025 |
| Titan Marine Technology Ltd | Manufacturing | 2025 |
| TJM Healthcare Limited | Health & social care | 2024 |
| TMS UK Properties Ltd | Real estate | 2019 |
| Top Fruit Multi-Services Ltd | Professional & scientific | 2025 |
| Top Living Homes Ltd | Real estate | 2019 |
| TOP10B Ltd | Other services | 2021 |
| Total Dynamics Ltd | Construction | 2017 |
| Total Fresh Cleaning Limited | Administrative & support | 2025 |
| Total Prime Limited | Professional & scientific | 2014 |
| Total Spedition Ltd | Transport & logistics | 2021 |
| Townpr Ltd | Professional & scientific | 2026 |