| Sugar Factory Desserts Limited | Hospitality | 2025 |
| Sumo Pubs Ltd | Hospitality | 2024 |
| Sun City Sunbeds Ltd | Other services | 2024 |
| Sunny Beach Mobility Hire Limited | Other services | 2026 |
| Sussed Clothing Ltd | Manufacturing | 2021 |
| Sutej Ltd | Transport & logistics | 2025 |
| Sutton Hill Farm Country Auctions Limited | Administrative & support | 2018 |
| Suvik Ltd | Real estate | 2025 |
| SV Pharma Services Ltd | Wholesale & retail | 2024 |
| SVS (Leicester) Ltd | Wholesale & retail | 2025 |
| Swich Homes Limited | Real estate | 2021 |
| Swift Accounting (UK) Ltd | Professional & scientific | 2007 |
| Swift Trading UK Ltd | Wholesale & retail | 2024 |
| Swindon Dispensary Limited | Wholesale & retail | 2011 |
| Swiss Liquor Ltd | Wholesale & retail | 2026 |
| Systems for Life Ltd | Construction | 2010 |
| Syston Autos Ltd | Wholesale & retail | 2021 |
| Sywx Springhouse Limited | Hospitality | 2023 |
| T.Laska Ltd | Transport & logistics | 2017 |
| Tabacu Trans Ltd | Transport & logistics | 2018 |
| Tailored Touch Bespoke Gifts Ltd | Extraterritorial | 2024 |
| Talent Brook Ltd | Administrative & support | 2023 |
| Tandoor and Tawa Ltd | Hospitality | 2026 |
| Tandy PMO Services Limited | Administrative & support | 2017 |
| Task Bureau Limited | Health & social care | 2014 |
| TAZ Handling Ltd | Transport & logistics | 2017 |
| TB Plastering Ltd | Construction | 2022 |
| Team Rankine Karate Ltd | Arts & recreation | 2024 |
| Tech Overhaul Ltd | Other services | 2020 |
| TED Teck Ltd | Administrative & support | 2023 |
| Tesien Pines Ltd | Wholesale & retail | 2023 |
| Tesla Renewables Ltd | Construction | 2011 |
| TG Logistics Solutions Ltd | Transport & logistics | 2025 |
| TH 92 Ltd | Other services | 2023 |
| Thamara Investment Ltd | Financial services | 2022 |
| THE 24/7 Property Maintenance Group Ltd | Construction | 2019 |
| THE Connected Heating Company Ltd | Construction | 2017 |
| THE Crossways Kings Lynn Ltd | Hospitality | 2024 |
| THE Dental and Cosmetic Clinic Ltd | Health & social care | 2009 |
| THE Drawing Room (Architects) Limited | Professional & scientific | 2006 |
| THE Dreamydestiny Suites Ltd | Hospitality | 2025 |
| THE Energy Business Ltd | Professional & scientific | 2024 |
| THE Hand Surgery Clinic Ltd | Health & social care | 2022 |
| THE Mane Room Leicester Ltd | Other services | 2024 |
| THE Millstone Inn Stamford Ltd | Hospitality | 2021 |
| THE Plough at Wigston Limited | Hospitality | 2012 |
| THE Really Great Barber Company Limited | Other services | 2013 |
| THE Silent Stockroom Ltd | Wholesale & retail | 2025 |
| THE Skin Elixir Company Ltd | Wholesale & retail | 2025 |
| THE Spine Clinic Ltd | Administrative & support | 2019 |
| THE Warner Properties EOT Company Limited | Real estate | 2017 |
| THE Winchester of Wigston Limited | Arts & recreation | 2025 |
| Theley Properties Ltd | Real estate | 2022 |
| Theoffy Limited | Wholesale & retail | 2025 |
| Thermo Logistics Leicester Ltd | Transport & logistics | 2018 |
| Thurney Properties Limited | Real estate | 2013 |
| Tiger Fitness Leicester Ltd | Arts & recreation | 2024 |
| Timbateq EOT Limited | Financial services | 2023 |
| Timbateq Limited | Manufacturing | 2006 |
| TJ Burgers Ltd | Hospitality | 2024 |
| TM Commercials & Plant Ltd | Wholesale & retail | 2026 |
| TN Diagnostics Limited | Health & social care | 2018 |
| TOM Whayman Ltd | Construction | 2025 |
| Tomeniuc Sorin Ltd | Transport & logistics | 2015 |
| Top Cuts Wigston Ltd | Other services | 2026 |
| Top Top Fade Ltd | Other services | 2025 |
| Topaz Detailing (Midlands) Ltd | Other services | 2016 |
| Topfare Ltd | Wholesale & retail | 2020 |
| Topgun Transport Limited | Transport & logistics | 2010 |
| Totem Designs Ltd | Manufacturing | 2025 |
| Trade Spray Finishes Limited | Construction | 2024 |
| Tradefxwave Ltd | Other services | 2025 |
| Trainix Sports Limited | Manufacturing | 2025 |
| Transformers Car Hire Ltd | Professional & scientific | 2014 |
| Tranter Fire and Security Systems Limited | Construction | 2001 |
| Treasure NOT Found Ltd | Professional & scientific | 2023 |
| Treetop Pubs Ltd | Hospitality | 2025 |
| Trentside Estates Limited | Real estate | 2016 |
| Trentside Investments Ltd | Administrative & support | 2008 |
| Tripple T Logistics Ltd | Transport & logistics | 2019 |
| Trishanti Medical Ltd | Health & social care | 2024 |
| Trivedi & Co Holdings Ltd | Financial services | 2024 |
| True Aspect Ltd | Manufacturing | 2023 |
| Trufocus Ltd | Real estate | 2025 |
| Trustforce Ltd | Administrative & support | 2026 |
| Tsunami Computers Limited | Information & communication | 1998 |
| TT Ventilation Limited | Construction | 2018 |
| Tudor Specialist Print Finishers Limited | Manufacturing | 2003 |
| Tulis Global Ltd | Wholesale & retail | 2018 |
| Tushaar Masri Ltd | Wholesale & retail | 2017 |
| Two Seas (Commercial) Limited | Real estate | 2020 |
| Two Seas Estates Limited | Real estate | 2019 |
| U.H. Kara and Sons Properties Ltd | Real estate | 2017 |
| UK Fone World Ltd | Wholesale & retail | 2019 |
| UK Online Hub Limited | Wholesale & retail | 2025 |
| Undon Ltd | Hospitality | 2023 |
| Uniica Ltd | Wholesale & retail | 2020 |
| Uninterrupted Service Delivery Ltd | Health & social care | 2022 |
| Unique Luxury Window Ltd | Wholesale & retail | 2026 |
| Unique Physique Gym Ltd | Arts & recreation | 2026 |