| Splashing OUT Bathrooms Limited | Construction | 2016 |
| Spurr Fabrications Limited | Manufacturing | 2007 |
| Spurr's Butchers Ltd | Wholesale & retail | 2018 |
| Squarehaus Limited | Wholesale & retail | 2019 |
| Squarehaus Motorhomes Ltd | Manufacturing | 2022 |
| Squires Holding Limited | Financial services | 2024 |
| SRM Solar Limited | Energy | 2023 |
| SSG Motors Ltd | Wholesale & retail | 2025 |
| SSG Trading Ltd | Wholesale & retail | 2022 |
| SSK Group Ltd | Real estate | 2015 |
| ST John's Capital & Finance Limited | Financial services | 2010 |
| Stackrent Limited | Administrative & support | 2025 |
| Stanold Limited | Professional & scientific | 2025 |
| Star Distribution Solutions Ltd | Transport & logistics | 2024 |
| Star Fitness Ltd | Arts & recreation | 2021 |
| Star Nutrition Ltd | Administrative & support | 2019 |
| Star Wellness Limited | Wholesale & retail | 2024 |
| Starlight Beds Limited | Manufacturing | 2009 |
| Stawman’S Ventilation Ltd | Construction | 2023 |
| Steadifyconsultancy Limited | Information & communication | 2024 |
| Steel Torso Apparel Ltd | Wholesale & retail | 2020 |
| Stenton Holdings Group Ltd | Professional & scientific | 2023 |
| Stenton Properties Ltd | Real estate | 2022 |
| Steve's Driving School Limited | Education | 2022 |
| Stewart Shipping and Forwarding Limited | Transport & logistics | 1995 |
| Stony Croft Court Management Company Limited | Households | 2018 |
| Storom Trading Limited | Wholesale & retail | 2023 |
| Strom Limited | Wholesale & retail | 2013 |
| Stroma BC Holdings Limited | Professional & scientific | 2015 |
| Stroma Building Control Limited | Professional & scientific | 2001 |
| Stroma Built Environment Limited | Professional & scientific | 2002 |
| Stroma Certification Limited | Other services | 2007 |
| Stroma Compliance Services Limited | Financial services | 2024 |
| Stroma Developments Limited | Professional & scientific | 2004 |
| Stroma Group Limited | Professional & scientific | 2014 |
| Stroma Holdings Limited | Professional & scientific | 2014 |
| Stroma Specialist Access Limited | Construction | 1987 |
| Studio SIX Designs Ltd | Professional & scientific | 2021 |
| Sublime Sleep Ltd | Wholesale & retail | 2016 |
| Subscan QWM Ltd | Professional & scientific | 2025 |
| Subscan QWM Rail and Survey Ltd | Manufacturing | 2025 |
| Sultan Smash and Grill Ltd | Hospitality | 2026 |
| Sunnydale Homes Ltd | Real estate | 2025 |
| Sunnydale Management Services Limited | Real estate | 2021 |
| Sunnydale Properties Limited | Hospitality | 2019 |
| Sunrise Investment Research Limited | Other services | 2022 |
| Super Strength Squad Ltd | Other services | 2023 |
| Supply Desk (Yorkshire) Ltd | Education | 2025 |
| Swift Key Home Buyers Ltd | Real estate | 2025 |
| Symphony/Signature Cocktails Ltd | Wholesale & retail | 2023 |
| T Hughes (Batley) Limited | Wholesale & retail | 1981 |
| TAG Entertainment (UK) Ltd | Arts & recreation | 2019 |
| TAG Professionals Ltd | Health & social care | 2017 |
| Talent Solution Group Ltd | Administrative & support | 2023 |
| Tax Solutions Wakefield Limited | Professional & scientific | 2018 |
| Tdam Properties Limited | Real estate | 2023 |
| Teasdale Flooring Ltd | Construction | 2025 |
| Technology Office Limited | Administrative & support | 2017 |
| Techweld Supplies Limited | Wholesale & retail | 2018 |
| Temban Fabrications Limited | Manufacturing | 1985 |
| Tgfm Consulting Limited | Professional & scientific | 2012 |
| TGP Investments Limited | Financial services | 2013 |
| THE Agile Analyst Ltd | Information & communication | 2022 |
| THE Box Ossett Ltd | Wholesale & retail | 2021 |
| THE Combat Group Ltd. | Administrative & support | 2009 |
| THE Counting House Pontefract 1609 Ltd | Hospitality | 2025 |
| THE Dbm's Property Ltd | Real estate | 2025 |
| THE Decanter Wine Bars Limited | Hospitality | 2014 |
| THE Drawer Box Company Ltd | Manufacturing | 2017 |
| THE Foam People Limited | Manufacturing | 2022 |
| THE Glowhaus Ossett Ltd | Other services | 2026 |
| THE Good Fundraising Company Limited | Administrative & support | 2012 |
| THE Hallmark Mill Development Company Limited | Real estate | 2012 |
| THE Hallmark Partnership Limited | Construction | 2013 |
| THE Hallmark Property Development Company Limited | Construction | 2013 |
| THE Hallmark Property Partnership Limited | Construction | 2007 |
| THE Hallmark Property Portfolio Company Limited | Construction | 2015 |
| THE Hallmark Ryhill Courtyard Development Company Limited | Construction | 2014 |
| THE Hardwick Company Limited | Hospitality | 2005 |
| THE Hogan Group Limited | Manufacturing | 2016 |
| THE Instant Photobooth Ltd | Professional & scientific | 2022 |
| THE Launderer Limited | Other services | 2022 |
| THE Lead Supply Ltd | Professional & scientific | 2014 |
| THE Mill Management Services Company (Ossett) Limited | Real estate | 2010 |
| THE Mortgage Masters Ltd | Financial services | 2022 |
| THE New Angel Inn Ltd | Hospitality | 2025 |
| THE New Carpenters Arms Ltd | Hospitality | 2024 |
| THE New FOX & Hounds Newmillerdam Ltd | Hospitality | 2025 |
| THE Nineteenth PUB Company Ltd | Hospitality | 2025 |
| THE Ossett Car Group Limited | Wholesale & retail | 2026 |
| THE Prohibition Ackworth 1915 Ltd | Hospitality | 2025 |
| THE Prospect Ossett 2020 Limited | Hospitality | 2020 |
| THE Sleep People (Holdings) Limited | Financial services | 2020 |
| THE Sleep People Group Limited | Financial services | 2026 |
| THE Sleep People Limited | Manufacturing | 2014 |
| THE Travel Services Group Ltd | Administrative & support | 2024 |
| THE VIC PUB Limited | Hospitality | 2021 |
| THE Watering Hole on the Farm Limited | Agriculture & fishing | 2025 |
| THE Well Woman Collective Limited | Health & social care | 2026 |
| THE Yorkshire Thoroughbred Car Club (West Riding) Limited | Other services | 2008 |