| SWS (Cross Hills) Limited | Professional & scientific | 2005 |
| SYD Barrett Music Limited | Administrative & support | 2016 |
| SYK Components Limited | Manufacturing | 2007 |
| Sync Electrical Building Services Ltd | Construction | 2015 |
| Synchro Projects Ltd. | Professional & scientific | 2015 |
| Systems People Limited | Information & communication | 2002 |
| T & P Electricals Ltd | Wholesale & retail | 2020 |
| T & Z Services Limited | Professional & scientific | 2017 |
| T B Auto Electrics Ltd | Wholesale & retail | 2019 |
| T Cars Body Shop Limited | Wholesale & retail | 2018 |
| T Cowgill & Sons Limited | Construction | 2005 |
| T W Laycock & Sons Limited | Wholesale & retail | 2011 |
| T Walker Construction Ltd | Construction | 2024 |
| T.F. Smiths (U.K.) Limited | Wholesale & retail | 2001 |
| T.L. Care (NW) Limited | Health & social care | 2007 |
| T14 Ltd | Information & communication | 2019 |
| T2 Engineering Services Ltd | Professional & scientific | 2025 |
| T3CHSERVICES Ltd | Information & communication | 2022 |
| T44XXW Ltd | Professional & scientific | 2026 |
| TA City Stays Ltd | Real estate | 2026 |
| Tactile Paving Services Limited | Construction | 2007 |
| Tactile Paving Supplies Limited | Manufacturing | 2016 |
| Tahir Mehmood Taxis Ltd | Transport & logistics | 2024 |
| Tahira’S Care Limited | Health & social care | 2026 |
| Takahe Holdings Ltd | Financial services | 2016 |
| Takahe Investments Ltd | Financial services | 2026 |
| Take Care Services Limited | Health & social care | 2026 |
| Talent Shop Limited | Administrative & support | 2025 |
| Talent Squared Ltd | Administrative & support | 2011 |
| Talent Trust Ltd | Arts & recreation | 2022 |
| Talented Minds Recruitment Limited | Administrative & support | 2019 |
| Talk Fones Ltd | Wholesale & retail | 2018 |
| Tap-In Supplies Limited | Wholesale & retail | 2009 |
| Tapping Foot Limited | Wholesale & retail | 2023 |
| Tariqs Transport Limited | Transport & logistics | 2025 |
| Tarmac Techs Ltd | Wholesale & retail | 2026 |
| Tarnished Princess Ltd | Wholesale & retail | 2015 |
| Tasons Ltd | Financial services | 2025 |
| Taste of Curry Limited | Hospitality | 2026 |
| Taste of Keighley Limited | Hospitality | 2025 |
| Tasty Bite (Worksop) Ltd | Hospitality | 2017 |
| Tate Farriers Limited | Professional & scientific | 2007 |
| Tate’S Private Hire Limited | Extraterritorial | 2024 |
| Tax and Accounting Yorkshire Ltd | Professional & scientific | 2009 |
| Tax and Accounting Yorkshire Trustees Limited | Professional & scientific | 2022 |
| Tax Shops (Yorkshire) Limited | Extraterritorial | 1997 |
| Taylor & Whitford Ltd | Wholesale & retail | 2018 |
| Taylor Educational and Evaluation Services Limited | Professional & scientific | 2011 |
| Taylor Environmental Groundworks Limited | Construction | 2010 |
| Taylor Moraes Limited | Other services | 2021 |
| TBW (Keighley) Ltd | Wholesale & retail | 2024 |
| TCB Grounds Maintenance Limited | Administrative & support | 2024 |
| TCB Lettings Limited | Real estate | 2024 |
| TCM Draincare Ltd | Water & waste | 2022 |
| TD Holdings 1951 Ltd | Wholesale & retail | 2019 |
| Teale Communications Ltd | Information & communication | 2025 |
| Team Topologies Holding Limited | Financial services | 2025 |
| Teasdales Property Services Ltd | Construction | 2021 |
| Tech Plug International Ltd | Wholesale & retail | 2025 |
| TECH4ALIGN Ltd | Wholesale & retail | 2025 |
| Techni Bay Limited | Wholesale & retail | 2010 |
| Technical Services Northern Limited | Professional & scientific | 2007 |
| Techno Clamp Company Limited | Manufacturing | 2006 |
| Teddy Boutique Limited | Wholesale & retail | 2011 |
| Telepko Ltd | Wholesale & retail | 2026 |
| Telluris Consulting Ltd | Mining & quarrying | 2003 |
| Terra Firma Projects Ltd | Construction | 2020 |
| TERRY907 - Solutions Ltd | Health & social care | 2021 |
| Tersan Limited | Real estate | 2010 |
| TGK Builders Ltd | Hospitality | 2023 |
| TH Optics Ltd | Wholesale & retail | 2025 |
| THE Accountables Limited | Professional & scientific | 2013 |
| THE Ace 616 Ltd | Arts & recreation | 2026 |
| THE Airedale Springs Partnership LLP | | 2009 |
| THE Aroush Ltd | Hospitality | 2019 |
| THE Bachelor PAD Limited | Wholesale & retail | 2007 |
| THE Bathroom Showroom Ltd | Wholesale & retail | 2025 |
| THE Beard Care Company Ltd | Other services | 2025 |
| THE Beauty Room (Bradford) Limited | Other services | 2003 |
| THE Beauty Specialist LMV Ltd | Other services | 2024 |
| THE Better Trends Company Limited | Professional & scientific | 2021 |
| THE Big Soup Theatre Group Limited | Health & social care | 2008 |
| THE Body Tuning Clinic Ltd | Health & social care | 2024 |
| THE Booze Market Ltd | Hospitality | 2025 |
| THE Brace Place (Yorkshire) Ltd | Health & social care | 2022 |
| THE Brace Place Holdings Ltd | Real estate | 2024 |
| THE Bronte Bar Company Ltd. | Administrative & support | 2017 |
| THE Bronte Hotel Limited | Hospitality | 2022 |
| THE Bronte Society | Arts & recreation | 1902 |
| THE Buffet Car Cafe Ltd | Hospitality | 2025 |
| THE Bungalow OUT of School Club Ltd | Other services | 2013 |
| THE Burnt Bear Limited | Hospitality | 2019 |
| THE CAD Desk Ltd | Professional & scientific | 2008 |
| THE Calvari Candle Company Ltd | Manufacturing | 2025 |
| THE Carpet and Flooring Gallery (Silsden) Limited | Construction | 2020 |
| THE Carpet Guys Ltd | Wholesale & retail | 2024 |
| THE Carriages Oxenhope Management Company Limited | Households | 2026 |
| THE City Vaults Limited | Hospitality | 2006 |
| THE Clubhouse Retail (Leeds) Limited | Hospitality | 2021 |
| THE Commercial Maestro Ltd | Financial services | 2026 |