| THE Comedian's Guide to Survival Limited | Information & communication | 2014 |
| THE Creator LAB Creator Network Ltd | Professional & scientific | 2025 |
| THE Crossings Fish and Chips Limited | Hospitality | 2019 |
| THE Cyber Mill Limited | Information & communication | 2000 |
| THE Doorway to English Ltd | Education | 2025 |
| THE Drovers Arms (Skipwith) Limited | Hospitality | 2021 |
| THE Eighteen Group Ltd | Financial services | 2021 |
| THE Elmhirst Trust | Education | 1989 |
| THE Endeavour International Alliance Ltd | Professional & scientific | 2025 |
| THE Essential Trout & Salmon FLY Company Limited | Agriculture & fishing | 2007 |
| THE Four Lanes Ltd | Construction | 2024 |
| THE FOX & Pheasant Hemingbrough Ltd | Hospitality | 2025 |
| THE Garm Merchant Ltd | Wholesale & retail | 2021 |
| THE Gilded Dice Ltd | Wholesale & retail | 2026 |
| THE Hall (Selby) Management Company Limited | Households | 2009 |
| THE Hamper and Gift Co Ltd | Wholesale & retail | 2025 |
| THE Howden Brewing Company Limited | Wholesale & retail | 2021 |
| THE Hunslet Engine Company Limited | Transport & logistics | 2024 |
| THE Inn South Stainley Limited | Hospitality | 2021 |
| THE Kitchen York Limited | Hospitality | 2025 |
| THE Malt Kiln Management Company Limited | Real estate | 2002 |
| THE Maxim Group Limited | Wholesale & retail | 1995 |
| THE Nelson Inn Selby Ltd | Hospitality | 2026 |
| THE Old Butchers Catering & Events Limited | Hospitality | 2019 |
| THE Olde Cherry Tree Ltd | Extraterritorial | 2019 |
| THE Padel Shed Selby Ltd | Arts & recreation | 2026 |
| THE Pilates Group Ltd | Health & social care | 2025 |
| THE Prod Dept. Ltd | Information & communication | 2024 |
| THE Read School Enterprises Limited | Hospitality | 1998 |
| THE Read School, Drax, Trustee Limited | Education | 2010 |
| THE Repair Adept Limited | Other services | 2024 |
| THE Rocking Horse Toy Shop Ltd | Other services | 2019 |
| THE Rustic Rebel Ltd | Arts & recreation | 2021 |
| THE Sipping Tree Limited | Wholesale & retail | 2020 |
| THE Skills Network (TSN) Group Limited | Financial services | 2022 |
| THE Skills Network Limited | Education | 2007 |
| THE Spiritslab Ltd | Wholesale & retail | 2024 |
| THE Three Swans Ltd | Households | 2025 |
| THE Tyre Shop Selby Limited | Wholesale & retail | 2005 |
| THE Window Master (Yorks) Ltd | Manufacturing | 2025 |
| THE Wolf Shed Ltd | Arts & recreation | 2019 |
| THE Workplace Noise Assessment Company Ltd | Professional & scientific | 2022 |
| THE York and Ainsty (South) Hunt Limited | Agriculture & fishing | 2021 |
| THE York HAT Company Limited | Wholesale & retail | 2014 |
| THE York Skin Clinic Limited | Health & social care | 2024 |
| THE Yorkshire Shavings Company Ltd | Manufacturing | 2019 |
| THE Yorkshire Tipsy Co. Limited | Extraterritorial | 2025 |
| THE Yorkshire Tipsy Trailer Limited | Hospitality | 2022 |
| THE Yorkshire Woodwork Wizard Ltd. | Manufacturing | 2024 |
| Thecomponentshop.Com (Europe) Limited | Wholesale & retail | 2007 |
| Theconfidencecompany Ltd | Wholesale & retail | 2025 |
| Theolibobs Limited | Professional & scientific | 2020 |
| Therapy to Thrive Ltd | Education | 2026 |
| Thermaledge Solutions Ltd | Construction | 2021 |
| Third Floor 5KER Limited | Households | 2018 |
| Third Lane Digital Ltd | Information & communication | 2024 |
| Thirsk Properties Limited | Real estate | 2021 |
| Thomas Forestry Services Ltd | Agriculture & fishing | 2024 |
| Thomson Investment Properties Ltd | Real estate | 2021 |
| Thorn & Thunder Distillery Limited | Manufacturing | 2025 |
| Thornes Independent Limited | Transport & logistics | 1932 |
| Thornlee Properties Limited | Real estate | 2026 |
| Thread Education Ltd | Education | 2026 |
| Three Bros Cuisine Ltd | Hospitality | 2025 |
| Three Swans Recruitment Ltd | Administrative & support | 2016 |
| Three Ways East Limited | Professional & scientific | 2012 |
| Threebros Kitchen Ltd | Hospitality | 2023 |
| TIA Dale Estates Ltd | Real estate | 2025 |
| Tickbag Limited | Information & communication | 2017 |
| Tidyfix Maintenance Limited | Construction | 2026 |
| Tiger Print (the Business Printer) Ltd | Manufacturing | 2011 |
| Tiger Technology Innovations Limited | Administrative & support | 2009 |
| Tikpay UK Limited | Transport & logistics | 2023 |
| Time to Bloom Ltd | Health & social care | 2019 |
| Tiny Toes Private Nursery Limited | Health & social care | 2018 |
| TJE Consulting Ltd | Professional & scientific | 2026 |
| TJS Sports Lounge Ltd | Hospitality | 2022 |
| Together at Home Care Ltd | Health & social care | 2025 |
| Toilled Ltd | Agriculture & fishing | 2012 |
| Tomasz POL Limited | Transport & logistics | 2018 |
| Toned Group Limited | Education | 2026 |
| Tonks Electrical Ltd | Construction | 2025 |
| Tonks Properties Limited | Households | 2018 |
| Top CUT Barber (Selby) Limited | Other services | 2020 |
| Topsoil Direct Limited | Agriculture & fishing | 1997 |
| Torlesse Enterprises Limited | Professional & scientific | 1995 |
| Total Fibreglass Yorkshire Ltd | Manufacturing | 2017 |
| Total Gaming Limited | Professional & scientific | 2021 |
| Total Safety Solutions Ltd | Professional & scientific | 2016 |
| Trade Interior Supplies Limited | Wholesale & retail | 2013 |
| Trades Hire UK Limited | Administrative & support | 2024 |
| Traffic Management Vehicle Specialist Limited | Administrative & support | 2019 |
| Trained:Uk Limited | Education | 2011 |
| Training for Employment (Yorkshire) C.I.C. | Education | 2015 |
| Trans Rodan Ltd | Administrative & support | 2016 |
| Tri-Chair Ltd | Wholesale & retail | 2022 |
| Tribe 2121 Collective Ltd | Other services | 2024 |
| Tribute Pictures Limited | Wholesale & retail | 2000 |
| Trio Supported Holidays CIC | Other services | 2014 |
| Tripaid Limited | Information & communication | 2019 |