| Tadek Deli Ltd | Wholesale & retail | 2017 |
| Tadek DK Ltd | Wholesale & retail | 2024 |
| Talic Health Care Solutions Limited | Administrative & support | 2023 |
| Talic Jewel Solutions Limited | Transport & logistics | 2016 |
| Tami Label Ltd | Wholesale & retail | 2021 |
| Tanas Enterprises Limited | Construction | 2018 |
| Tang HOI Moon KEE (UK) Limited | Wholesale & retail | 2022 |
| Tango Lounge Ltd | Other services | 2026 |
| TAP Catering Services Ltd | Extraterritorial | 2025 |
| Tavqin Ltd | Professional & scientific | 2022 |
| Tax Smart Consultants UK Limited | Professional & scientific | 2017 |
| Tax-Smart-Uk Ltd | Professional & scientific | 2015 |
| Taylor Electrical Services Ltd | Construction | 2026 |
| TBS Technical Services Ltd | Information & communication | 2026 |
| TC Landscaping Ltd | Administrative & support | 2019 |
| Teal Services Ltd | Professional & scientific | 2025 |
| Techni-K Consulting Ltd | Hospitality | 2012 |
| Technogenia UK - Laser Cladding Technology Ltd | Professional & scientific | 2003 |
| Technology Management Associates Ltd | Professional & scientific | 2018 |
| Technomatic Control Solutions Ltd | Professional & scientific | 2021 |
| Techtrek Ltd | Wholesale & retail | 2025 |
| Teklift Ltd | Manufacturing | 2015 |
| TH Bathrooms Limited | Construction | 2024 |
| Thai Cassia Limited | Hospitality | 2013 |
| That Will Print Ltd | Wholesale & retail | 2025 |
| THE Angel Inn (Blyth) Limited | Hospitality | 2001 |
| THE Answer Facilities Support Team Limited | Manufacturing | 2010 |
| THE Blueprint Global Group Ltd | Professional & scientific | 2024 |
| THE Brand Club Ltd | Professional & scientific | 2024 |
| THE Carlton Forest Partnership Limited | Transport & logistics | 2010 |
| THE Christian Shop Ltd | Wholesale & retail | 2013 |
| THE Craftsmanship Company Limited | Manufacturing | 2024 |
| THE Creswell Heritage Trust | Arts & recreation | 1989 |
| THE DBS Specialists Limited | Construction | 2023 |
| THE DDC Group International Limited | Professional & scientific | 2024 |
| THE Derbyshire Makers Ltd | Wholesale & retail | 2024 |
| THE Detailing Detectives Ltd | Wholesale & retail | 2016 |
| THE ELM Tree (Elmton) Limited | Hospitality | 2009 |
| THE ELM Tree Outside Catering Limited | Hospitality | 2022 |
| THE Estates Climate Group Limited | Wholesale & retail | 2025 |
| THE Foodie Recruiter Ltd | Administrative & support | 2023 |
| THE FOX Path Ltd | Real estate | 2025 |
| THE Foxy Red Co. Ltd | Wholesale & retail | 2024 |
| THE Grange S9 Limited | Transport & logistics | 2021 |
| THE I.T. MEN Limited | Information & communication | 2002 |
| THE Kendrick Village Ltd | Information & communication | 2025 |
| THE Little Kitchen Down the Road Limited | Hospitality | 2020 |
| THE Maple House Nursery Limited | Health & social care | 2025 |
| THE Master Greek Ltd | Hospitality | 2024 |
| THE Mews Management Co. (Whitwell) Limited | Extraterritorial | 1993 |
| THE Nexus Holding Company Limited | Other services | 1994 |
| THE Northern Rubber Company Ltd | Manufacturing | 2024 |
| THE One PUB Company Limited | Hospitality | 2022 |
| THE Orlando FUN Company Ltd | Administrative & support | 2026 |
| THE Petal Shed Ltd | Wholesale & retail | 2026 |
| THE Pines Worksop Limited | Real estate | 2006 |
| THE Plastic Works Limited | Manufacturing | 2001 |
| THE Print and Merch Company Limited | Wholesale & retail | 2025 |
| THE Procurement Academy Limited | Professional & scientific | 2017 |
| THE Reede Limited | Construction | 2024 |
| THE Riverside Inn (Worksop) Limited | Transport & logistics | 2002 |
| THE Roses Catch Ltd | Other services | 2018 |
| THE Sandwich Factory Holdings Limited | Manufacturing | 1996 |
| THE School of Artisan Food | Manufacturing | 2008 |
| THE Second ERA Ltd | Wholesale & retail | 2025 |
| THE Silentis Group Ltd | Information & communication | 2017 |
| THE Tournament Ground Limited | Arts & recreation | 2016 |
| THE UK Virtual Bookkeeper Limited | Professional & scientific | 2024 |
| THE Welbeck Bakehouse Limited | Manufacturing | 2007 |
| THE Welbeck Farm Shop Limited | Wholesale & retail | 2006 |
| THE Woof Hub Ltd | Wholesale & retail | 2021 |
| THE Worksop Priory and Gatehouse Community Trust | Other services | 2009 |
| Therapy-The Hub Limited | Wholesale & retail | 2009 |
| THEROUTE4U Ltd | Wholesale & retail | 2018 |
| Thiaratalent Limited | Administrative & support | 2026 |
| Thiarax Limited | Information & communication | 2025 |
| Thinking Trading Law Systems Ltd | Professional & scientific | 2014 |
| Thomas Property and Lettings Ltd | Real estate | 2017 |
| Thompson Technical Services Limited | Professional & scientific | 1999 |
| Thorne Road Chiropractic Clinic Limited | Health & social care | 2004 |
| Thorpe Contracts Limited | Wholesale & retail | 1990 |
| Three Peas Holdings Ltd | Real estate | 2025 |
| Three Peas Investments Ltd | Real estate | 2025 |
| Three Sparrows Living Limited | Professional & scientific | 2024 |
| Three System Solutions Ltd | Professional & scientific | 2021 |
| Thriftopia UK Ltd | Wholesale & retail | 2026 |
| Thrive Lets Limited | Real estate | 2020 |
| Tigers Education Ltd | Education | 2024 |
| Tighe Contracts Ltd | Information & communication | 2014 |
| Tiktokboom Ltd | Wholesale & retail | 2022 |
| Tillhirst Limited | Financial services | 1999 |
| TIM Stores Limited | Wholesale & retail | 2024 |
| Timberx Limited | Manufacturing | 2023 |
| Time 4 Talking Ltd | Education | 2013 |
| Time for Change Therapies CIC | Education | 2025 |
| Tiny Town (Barlborough) Ltd | Hospitality | 2021 |
| Tiny Town Ltd | Hospitality | 2018 |
| Tiny Town Soft Play Cafe Ltd | Hospitality | 2025 |
| Tiny Town Soft Play Ltd | Hospitality | 2025 |
| Tiphany Limited | Manufacturing | 2023 |