| Sure Tyres Limited | Wholesale & retail | 2000 |
| Surecroft Limited | Wholesale & retail | 2010 |
| Susan's Property Solutions Ltd | Real estate | 2025 |
| Suzanne Forrester Ltd | Financial services | 2024 |
| SVR Hardware Ltd | Wholesale & retail | 2024 |
| Swaffield Memorials Limited | Manufacturing | 2022 |
| Swan Tiling Limited | Construction | 2024 |
| Swanson Electrical Limited | Construction | 2015 |
| Swanson Transport Limited | Transport & logistics | 2013 |
| SWB Decorators Limited | Construction | 2010 |
| Sweets ARE Treats Limited | Wholesale & retail | 2020 |
| Swellfield Groundscare Limited | Administrative & support | 2024 |
| Swift Vulcanising Services Limited | Other services | 1999 |
| Swift Wash Ltd | Administrative & support | 2025 |
| Swift Windows, Doors & Conservatories Ltd | Construction | 2026 |
| Swiftform IP Limited | Administrative & support | 2026 |
| Swiftsys Ltd | Information & communication | 2022 |
| SX Developers Limited | Construction | 2019 |
| SXN Beauty Limited | Other services | 2023 |
| SXN Media Ltd | Information & communication | 2022 |
| SXN Property Limited | Administrative & support | 2025 |
| SY Developments Limited | Construction | 2024 |
| Sycamore Windows & Conservatories Limited | Construction | 2007 |
| Symbol a Ltd | Construction | 2020 |
| Syndicate Holdings (UK) Limited | Professional & scientific | 1985 |
| T G Air-Conditioning Ltd | Construction | 2011 |
| T S Wholesale Limited | Wholesale & retail | 2010 |
| T Z Maintenance Limited | Construction | 2023 |
| T-Fade Barbers Ltd | Other services | 2026 |
| T-Fade Ltd | Other services | 2024 |
| T. Bird Maintenance Ltd | Professional & scientific | 2013 |
| T. J. E Electrical Services Limited | Construction | 2014 |
| T.G.I. Corporation Limited | Wholesale & retail | 1992 |
| T.J. Practical Solutions Limited | Professional & scientific | 2018 |
| T1 Consulting Ltd | Administrative & support | 2013 |
| Ta&I Holdings Limited | Financial services | 2025 |
| Tabgeo Ltd | Health & social care | 2020 |
| Tacho 2000 Ltd | Wholesale & retail | 2002 |
| Taff Residential Limited | Administrative & support | 2019 |
| Taglish Limited | Information & communication | 2024 |
| Tailor-Made Competitions Limited | Arts & recreation | 2024 |
| Tailored Matting Limited | Wholesale & retail | 2016 |
| Taluma Limited | Construction | 2012 |
| Tamarind Cannock Ltd | Hospitality | 2026 |
| Tamiser Ltd | Households | 2023 |
| Tammy Nail Hednesford Limited | Other services | 2024 |
| Tandam Property Developments Ltd | Construction | 2022 |
| Tara Commercial Limited | Financial services | 2015 |
| Tara Professional Recruitment (London) Limited | Administrative & support | 2017 |
| Tara Professional Recruitment Limited | Administrative & support | 2007 |
| Tara Wellbeing Ltd | Other services | 2012 |
| Tastecyprus Ltd | Hospitality | 2026 |
| Tasty Bites (Cannock) Ltd | Hospitality | 2014 |
| Taurus Customs Services Ltd | Administrative & support | 2023 |
| Taurus Medical Solutions Limited | Wholesale & retail | 2008 |
| Taurus Star Holdings Limited | Financial services | 2024 |
| Tavsco Ltd | Construction | 2016 |
| Tax Efficient Numerate Solutions Limited | Extraterritorial | 2014 |
| Tax Returns Direct Ltd | Professional & scientific | 2025 |
| Taylor & SON Investments Limited | Real estate | 2026 |
| Taylor Grange (Law) Limited | Other services | 2019 |
| Taylor Grange 2 Limited | Real estate | 2020 |
| Taylor Grange DM Limited | Other services | 2020 |
| Taylor Makes Ltd | Manufacturing | 2025 |
| Taylor'D Data Solutions Ltd | Construction | 2025 |
| Tazz's Gym Ltd | Arts & recreation | 2024 |
| Tbarber Photography Ltd | Professional & scientific | 2024 |
| TBM Leaseholds Limited | Real estate | 2026 |
| TDK Taping Ltd | Construction | 2023 |
| Teach Sports Ltd | Education | 2022 |
| Team Freedom Limited | Construction | 2002 |
| Team Vibe Limited | Professional & scientific | 2020 |
| Tech Aluminium (Holdings) Limited | Manufacturing | 2023 |
| Tech Aluminium Facades Limited | Manufacturing | 2023 |
| Tech Search Solutions Ltd | Administrative & support | 2025 |
| Techcare Consultancy Limited | Information & communication | 2020 |
| Techcare Digital Limited | Professional & scientific | 2018 |
| Technical Materials Company Limited | Construction | 2010 |
| Technology Central Ltd | Information & communication | 2003 |
| Teddesley Estate Company Limited | Other services | 2004 |
| Teddesley Hall & Water Wheel Limited | Real estate | 2017 |
| TEI (UK) Ltd | Construction | 2013 |
| Telecom Poling Solutions Limited | Information & communication | 2025 |
| Telemisis Ltd | Manufacturing | 2008 |
| Telford & Newport Eats App Limited | Hospitality | 2022 |
| Telvar Limited | Wholesale & retail | 1990 |
| Tempered Air Ltd | Energy | 2025 |
| Templeton James Ltd | Financial services | 1999 |
| Tenancy Guard Holdings Ltd | Financial services | 2020 |
| Tenancy Guard Ltd | Information & communication | 2015 |
| Tens Administration Services Limited | Administrative & support | 2021 |
| TES Consumer Solutions Ltd | Extraterritorial | 2013 |
| Tes-Amm Europe Holdings Ltd | Professional & scientific | 2009 |
| Tes-Amm UK Ltd | Wholesale & retail | 1995 |
| Tezcal Waste Management Ltd | Water & waste | 2020 |
| Tgbnul Ltd | Hospitality | 2023 |
| Tgbstone Ltd | Hospitality | 2023 |
| Tgdm One Limited | Other services | 2020 |
| TGK Business Consultancy Limited | Professional & scientific | 2023 |
| THE Alerts (Affected Lived Experience Research Treatment Support) Group CIC | Education | 2024 |