| Sutton Concrete Pumping and Liquid Screed Limited | Construction | 2024 |
| Sutton Farm Management Company Limited | Professional & scientific | 2015 |
| Swallow and Sons Limited | Wholesale & retail | 2015 |
| Swift & Brining Financial Planning Limited | Financial services | 2014 |
| Swift Foundations Limited | Construction | 2007 |
| Swift Split Ltd | Professional & scientific | 2025 |
| Switch Networks Ltd | Information & communication | 2012 |
| Switched Solutions Limited | Construction | 2016 |
| Swoondust Limited | Information & communication | 2012 |
| Sychpant Power Limited | Energy | 2015 |
| T & a Dennis Limited | Transport & logistics | 2014 |
| T Davies Masonry Limited | Construction | 2023 |
| T Mason Services Limited | Transport & logistics | 2014 |
| T S Bloor & Sons Limited | Manufacturing | 1988 |
| T S Bloor Holdings Limited | Financial services | 2018 |
| T.G. Precision Engineering Limited | Manufacturing | 1989 |
| Tang's Delight Limited | Hospitality | 2025 |
| Tate-Smith Limited | Wholesale & retail | 1960 |
| Tate-Smith Wholesale Ltd | Financial services | 2025 |
| Tax Compliance Service Limited | Professional & scientific | 2025 |
| Taylors Cleaning Specialists Limited | Administrative & support | 2023 |
| TCD Automation Limited | Professional & scientific | 2007 |
| Tcel Limited | Construction | 2010 |
| Tech Apptitude Limited | Information & communication | 2026 |
| Tekivolt Limited | Wholesale & retail | 2023 |
| TEN Fathoms Ltd | Administrative & support | 2016 |
| Terrabyte Surveys Limited | Professional & scientific | 2023 |
| THE Academy Hair & Beauty Ltd | Education | 2000 |
| THE Animal Welfare Consultancy Limited | Administrative & support | 2019 |
| THE Beecham Weigh Ltd | Wholesale & retail | 2020 |
| THE Camphill Village Trust Limited | Health & social care | 1954 |
| THE Chilli JAM MAN Limited | Manufacturing | 2009 |
| THE Cooks Place Limited | Hospitality | 2020 |
| THE Cranedale Educational Charitable Trust | Hospitality | 2001 |
| THE Dental Health Practice Limited | Health & social care | 2008 |
| THE Edge (Whitby) Ltd | Hospitality | 2019 |
| THE Foil and Film Company Ltd | Wholesale & retail | 2017 |
| THE Gaunt-Edwards Partnership Limited | Information & communication | 1998 |
| THE Glam Haus Ltd | Other services | 2025 |
| THE Groovy MOO Ice Cream Co. Limited | Manufacturing | 2014 |
| THE Grumpit Ltd | Education | 2017 |
| THE Harbour Cafe Bar Limited | Hospitality | 2021 |
| THE Hidden Monkey Co Ltd | Hospitality | 2005 |
| THE Home Improvement Guys Ltd | Construction | 2025 |
| THE Homemade PUB Company Ltd | Hospitality | 2011 |
| THE Howardian Care Company Ltd | Administrative & support | 2025 |
| THE Lilac Partnership Ltd | Manufacturing | 2008 |
| THE Little Llama (Malton) Ltd | Hospitality | 2025 |
| THE Lost Tea Company Limited | Wholesale & retail | 2017 |
| THE Milton Rooms | Arts & recreation | 2014 |
| THE Mount Hotel Malton Ltd | Hospitality | 2019 |
| THE Numbers Business Ltd | Professional & scientific | 2020 |
| THE Original Baker Limited | Manufacturing | 2013 |
| THE Patisserie Malton Limited | Hospitality | 2014 |
| THE Polly Bateman Ltd | Administrative & support | 2019 |
| THE Probing PEN Ltd | Administrative & support | 2025 |
| THE Robert Fuller Gallery Limited | Manufacturing | 2006 |
| THE Rusty FOX of Malton Ltd | Wholesale & retail | 2017 |
| THE Storey Farm Partnership LP | | 2013 |
| THE Tofoo Company Limited | Manufacturing | 1999 |
| THE View South Ltd | Information & communication | 2016 |
| THE Whale Way Ltd | Administrative & support | 2021 |
| THE Whippet in Terrington Limited | Professional & scientific | 2015 |
| THE Wood Street Management Company (Norton) Limited | Hospitality | 2005 |
| THE Workhouse Gym Limited | Arts & recreation | 2016 |
| THE Yorkshire Fish & Chip Company Ltd | Hospitality | 2019 |
| THE Yorkshire Nutter Ltd | Manufacturing | 2025 |
| THE Yorkshire Pudding PIE Company Ltd | Manufacturing | 2017 |
| Therese Properties Management Ltd | Real estate | 2025 |
| Thixendale Consulting Limited | Professional & scientific | 2018 |
| Thomas Donald Transport Limited | Transport & logistics | 2025 |
| Thompson Architecture (Yorkshire) Limited | Professional & scientific | 2018 |
| Thompson Fertilisers Limited | Wholesale & retail | 2009 |
| Thornton Dale Fisheries Limited | Hospitality | 2010 |
| Thought Full Leadership Limited | Education | 2024 |
| Thps Consultancy and Management Services Limited | Professional & scientific | 2025 |
| Thps Venture Limited | Real estate | 2024 |
| Three Ridings Archaeological Limited | Extraterritorial | 2022 |
| Timeless Precision Limited | Professional & scientific | 2019 |
| TJR Health Ltd | Health & social care | 2026 |
| TJR Properties Limited | Real estate | 2018 |
| TJR Trading Limited | Wholesale & retail | 2026 |
| TJS Plumbing Services Ltd | Construction | 2016 |
| Toben Saunders Associates Limited | Administrative & support | 2014 |
| Tomas Robin Music Limited | Arts & recreation | 2025 |
| Toogood Agricultural and Marine Services Ltd | Wholesale & retail | 2024 |
| Top Farm Chester Limited | Real estate | 2021 |
| Toucan Archive Storage Limited | Transport & logistics | 2018 |
| Touchstone Software Solutions Ltd | Information & communication | 2023 |
| Touring Enterprises Limited | Wholesale & retail | 2012 |
| Tradez Limited | Construction | 2024 |
| Treehouses Limited | Construction | 1997 |
| Trejos Social Capital LLP | | 2022 |
| Trigger Castle Limited | Real estate | 2016 |
| TT Writing Consultancy Ltd | Education | 2022 |
| Tui's of Malton Ltd | Hospitality | 2020 |
| Turnbull Trading Ltd | Wholesale & retail | 2025 |
| Twin Oaks Stables Limited | Agriculture & fishing | 2026 |
| Twine Properties Ltd | Real estate | 2025 |
| Two Barking Dogs Limited | Financial services | 2025 |