| SIM Replay Ltd | Information & communication | 2026 |
| SJM Safety Consultancy Ltd | Professional & scientific | 2023 |
| SK Collection (Catterick) Limited | Wholesale & retail | 2026 |
| SK Sports Performance Ltd | Education | 2025 |
| SMA Quality Consultants Limited | Professional & scientific | 2023 |
| Snuk (Safety Netters UK) Ltd | Construction | 2013 |
| Software Add-Ons Limited | Information & communication | 2005 |
| Stamford Wellbeing Escapes Limited | Hospitality | 2025 |
| Stepstepvip Ltd | Wholesale & retail | 2026 |
| Stewy Plumbing Ltd | Construction | 2025 |
| Storerite Services Ltd | Administrative & support | 2008 |
| Streamline Accountants Limited | Professional & scientific | 2014 |
| Studio 19 Photography and Framing Ltd | Professional & scientific | 2023 |
| Subsea Energy Solutions Holdings Ltd | Financial services | 2014 |
| Subsea Energy Solutions Ltd | Manufacturing | 2011 |
| Summer Fogerty Limited | Hospitality | 2020 |
| Summer Heywood Fisheries Limited | Hospitality | 2020 |
| Sword Group Limited | Administrative & support | 2025 |
| Tabi Creations Ltd | Wholesale & retail | 2024 |
| Tareck | Professional & scientific | 2008 |
| Technites Strategy Ltd | Professional & scientific | 2026 |
| Temtem Limited | Health & social care | 2022 |
| THE Wings Parachute Display Team Limited | Arts & recreation | 2018 |
| THE Asha Tandoori (Garrison) Limited | Hospitality | 2012 |
| THE Beauty Training Hub Ltd | Education | 2019 |
| THE Blooming Walled Garden Limited | Administrative & support | 2022 |
| THE Yorkshire Gleam Team Limited | Households | 2017 |
| THE Yorkshire Grill House Ltd | Hospitality | 2022 |
| Theyers Ltd | Administrative & support | 2022 |
| Three Oak Property Ltd | Real estate | 2025 |
| Tiger Displays Ltd | Manufacturing | 2026 |
| Toni's Tanning Ltd | Other services | 2025 |
| Total Communications and Security Limited | Extraterritorial | 2020 |
| Total Communications Business Solutions Limited | Extraterritorial | 2000 |
| TRI Catering Ltd | Hospitality | 2026 |
| Truerail Fencing & Vegetation Ltd | Construction | 2018 |
| Try-Line Films Ltd | Information & communication | 2025 |
| Turnidor | Professional & scientific | 2008 |
| TVG Vision Ltd | Wholesale & retail | 2009 |
| Twistin Rivers Ltd | Information & communication | 2016 |
| UK Blue Light Channel Limited | Information & communication | 2018 |
| Usown Limited | Information & communication | 2020 |
| Veitokani Freight Services Ltd | Transport & logistics | 2021 |
| Veritas VA Ltd | Administrative & support | 2025 |
| Victoria Prints Limited | Wholesale & retail | 2025 |
| Viking Netlinks Ltd | Information & communication | 2019 |
| Votask CIC | Construction | 2024 |
| Warlake | Professional & scientific | 2008 |
| Warwick Transport Ltd | Transport & logistics | 2025 |
| WC21 (UK) Productions Ltd | Information & communication | 2024 |
| Web Buster UK Limited | Information & communication | 2014 |
| Wise EYE Investments Ltd. | Real estate | 1991 |
| Work With Jourdan Ltd | Professional & scientific | 2024 |
| Yieldmate Equipment Ltd | Agriculture & fishing | 2025 |
| Yorkshire Cabs Ltd | Information & communication | 2025 |
| Yorkshire Dales Distillery Ltd | Manufacturing | 2016 |
| Yorkshire Dales Pest Control Ltd | Administrative & support | 2022 |
| Zing Vehicle Detailing Ltd | Wholesale & retail | 2021 |