| Steve Lilley Plumbing and Heating Limited | Construction | 2021 |
| Stirling Leisure Limited | Hospitality | 2018 |
| Stonehouse Electrical Services Limited | Construction | 2022 |
| Storms Management Ltd. | Wholesale & retail | 2016 |
| Streamscape Limited | Professional & scientific | 2015 |
| Stride Lodge Ltd | Health & social care | 2014 |
| Strontian Hotel Limited | Hospitality | 2021 |
| Stubblefields Home Care Ltd | Health & social care | 2026 |
| Studiohus Limited | Professional & scientific | 2013 |
| Sturgeon Sanctuary Limited | Agriculture & fishing | 2026 |
| Subsea Marine Consultancy Ltd | Other services | 2023 |
| Sumakin Aromatics Limited | Manufacturing | 2023 |
| Summerfield Rentals Limited | Real estate | 2025 |
| Sunc Ltd | Information & communication | 2026 |
| Sunflower House Consulting Ltd | Professional & scientific | 2011 |
| Supply Chain In-Sites Ltd | Hospitality | 2021 |
| Supportai Solutions Ltd | Information & communication | 2025 |
| Sutton Bank Bikes Limited | Wholesale & retail | 2013 |
| Suyan Limited | Hospitality | 2023 |
| Svbp Ltd | Administrative & support | 2025 |
| SVJ Double Dragon Limited | Hospitality | 2026 |
| Swanbank Services Ltd | Construction | 2003 |
| Swanland Avenue Management Company Limited | Households | 2009 |
| Sweepcharm Limited | Hospitality | 1997 |
| Sweepcharm Properties Limited | Households | 2018 |
| Sweet Potato Ltd | Hospitality | 2023 |
| Swift Garden Services (Beverley) Ltd | Other services | 2023 |
| Swift International (UK) Ltd | Education | 2011 |
| T M Resources Limited | Administrative & support | 2010 |
| T Ward Contracting Ltd | Construction | 2017 |
| T. Ward Joinery Ltd | Construction | 2015 |
| T.W.Services (Pickering) Limited | Wholesale & retail | 2015 |
| T3 Developments Limited | Construction | 2025 |
| TA Partners Ltd | Hospitality | 2025 |
| Talia & Co Creative Ltd | Arts & recreation | 2025 |
| Talking Chair Limited | Other services | 2017 |
| Tallen Limited | Real estate | 2024 |
| Tallulah Properties Ltd | Construction | 2021 |
| TAP N' Flap Sensory Ltd | Manufacturing | 2026 |
| Tasty Garden Bridlington Limited | Hospitality | 2026 |
| Taylor Livestock Systems Ltd | Wholesale & retail | 2023 |
| Taylor Made Upvc Specialist Limited | Construction | 2018 |
| TD East Yorkshire Ltd | Hospitality | 2025 |
| Tea @ 33 Ltd | Hospitality | 2017 |
| Tealby Estates Limited | Real estate | 2004 |
| Technicolour P P C Limited | Manufacturing | 2004 |
| Tegon Limited | Construction | 2023 |
| Teksaz Burger Ltd | Hospitality | 2026 |
| Tepd Services Ltd | Information & communication | 2024 |
| Terra Adventures Limited | Wholesale & retail | 2026 |
| TH Shellfish Ltd | Agriculture & fishing | 2023 |
| THE 180 Lounge Limited | Hospitality | 2024 |
| THE Bay Horse (Arnold) Limited | Hospitality | 2012 |
| THE Bayridge Ltd | Hospitality | 2014 |
| THE Bilbrough Country Classroom Limited | Education | 2011 |
| THE BKR Group Ltd | Professional & scientific | 2014 |
| THE Brunswick Hotel Limited | Hospitality | 2012 |
| THE Cleaning Company (Yorkshire) Ltd | Other services | 2008 |
| THE Cleaning Cove Limited | Other services | 2017 |
| THE Coachman Hotel Bridlington Ltd | Other services | 2021 |
| THE Color (Bridlington) Limited | Other services | 2005 |
| THE Conifers R.H. Limited | Health & social care | 1996 |
| THE COW Shed @ Fraisthorpe Beach Limited | Hospitality | 2016 |
| THE Dog House (Bridlington) Ltd | Hospitality | 2018 |
| THE DUB Crew Ltd | Manufacturing | 2024 |
| THE Duct Cleaning Company Limited | Administrative & support | 2009 |
| THE Exercise Engineer Ltd | Education | 2022 |
| THE Farmers' Boiler Company Limited | Wholesale & retail | 2013 |
| THE Flying PIG (Yorkshire) Limited | Hospitality | 2025 |
| THE Funny Onion PUB Limited | Hospitality | 2018 |
| THE Galley Bar & Bistro Limited | Hospitality | 2023 |
| THE Hinge Centre Limited | Information & communication | 2008 |
| THE Home Pro (Yorkshire) Ltd | Construction | 2025 |
| THE Hudson Foundation Limited | Other services | 2019 |
| THE Lansdowne (Bridlington) Limited | Hospitality | 2025 |
| THE Latte Lounge (Bridlington) Limited | Hospitality | 2021 |
| THE Launch Filey Ltd | Hospitality | 2026 |
| THE Launderette (Bridlington) Limited | Other services | 2003 |
| THE Laundrette Whitby Ltd | Other services | 2017 |
| THE Moka HUT Ltd | Hospitality | 2022 |
| THE Mount, Bridlington, Management Company Ltd | Households | 2014 |
| THE Natural Slate Company Limited | Wholesale & retail | 2001 |
| THE Old Mill Energy Ltd. | Energy | 2012 |
| THE Old Tuck Shop (Flamborough) Limited | Information & communication | 2017 |
| THE Portly Perisher Ltd | Hospitality | 2026 |
| THE Property and Damp Company Limited | Construction | 2026 |
| THE Property Shop (Yorkshire) Limited | Real estate | 2020 |
| THE Recruitment Library Limited | Other services | 2025 |
| THE Ship Inn (East Yorkshire) Limited | Hospitality | 2006 |
| THE Taylor-Wellington Group Limited | Professional & scientific | 2023 |
| THE Telegraph Inn Limited | Hospitality | 2016 |
| THE Triton Inn Sledmere Limited | Hospitality | 2012 |
| THE Waffler Ltd | Hospitality | 2026 |
| THE Yorkshire Bakery Limited | Manufacturing | 2025 |
| THE Yorkshire Footwear Company Limited | Other services | 2019 |
| THE Yorkshire Yacht Club-House Company Limited | Other services | 1897 |
| Thompson Property Management (York) Limited | Real estate | 2014 |
| Three Beside the Sea Ltd | Real estate | 2025 |
| Tiffin & Tart Ltd | Hospitality | 2020 |
| Tiger Bulk Systems Ltd | Manufacturing | 1998 |