| Yorkshire Doner Ltd | Hospitality | 2024 |
| Yorkshire DPF Centre Ltd | Wholesale & retail | 2019 |
| Yorkshire Education Solutions Ltd | Administrative & support | 2016 |
| Yorkshire Energy Solution Ltd | Construction | 2021 |
| Yorkshire Engineering Limited | Manufacturing | 2015 |
| Yorkshire Event Power Limited | Construction | 2020 |
| Yorkshire Externals Ltd | Construction | 2020 |
| Yorkshire Family & Friends Project CIC | Education | 2025 |
| Yorkshire Fashion Week Limited | Other services | 2008 |
| Yorkshire Flue Specialists Limited | Construction | 2014 |
| Yorkshire Flying School Limited | Extraterritorial | 2014 |
| Yorkshire Foods Hudds Ltd | Hospitality | 2023 |
| Yorkshire Garden Antiques Limited | Wholesale & retail | 2018 |
| Yorkshire Garden Supplies Ltd | Administrative & support | 2025 |
| Yorkshire Guarding Services Ltd | Administrative & support | 2020 |
| Yorkshire Gymnastics Association Limited | Other services | 2019 |
| Yorkshire Hair Clinic Ltd | Other services | 2022 |
| Yorkshire Helicopters Ltd | Transport & logistics | 2019 |
| Yorkshire Home Build Ltd | Professional & scientific | 2025 |
| Yorkshire Horse Boxes Ltd | Manufacturing | 2021 |
| Yorkshire Housing Centre Ltd | Real estate | 2025 |
| Yorkshire Independent Referrals Ltd | Professional & scientific | 2024 |
| Yorkshire Kilts Limited | Extraterritorial | 2022 |
| Yorkshire Ladies’ County Golf Association Limited | Arts & recreation | 2020 |
| Yorkshire Landscaping & Building Limited | Construction | 2025 |
| Yorkshire Landscaping & Groundwork Limited | Construction | 2025 |
| Yorkshire Landscaping and Garden Design Limited | Administrative & support | 2024 |
| Yorkshire Langfield Limited | Professional & scientific | 2017 |
| Yorkshire Lantern Limited | Other services | 2018 |
| Yorkshire Laundry and DRY Cleaning Limited | Other services | 2014 |
| Yorkshire Letting & Sales Ltd | Real estate | 2024 |
| Yorkshire Lilly Investments Limited | Real estate | 2023 |
| Yorkshire Longhorn Holdings Limited | Real estate | 2022 |
| Yorkshire Markings Ltd | Construction | 2026 |
| Yorkshire Performance Centre Ltd | Wholesale & retail | 2024 |
| Yorkshire Premier Renovations Ltd | Construction | 2021 |
| Yorkshire Property Finance Ltd | Financial services | 2011 |
| Yorkshire Property Lawyers Ltd | Professional & scientific | 2021 |
| Yorkshire Recovery Service Ltd | Transport & logistics | 2026 |
| Yorkshire Regional Brass Band Championships Limited | Arts & recreation | 2006 |
| Yorkshire Shooting Centre Ltd | Wholesale & retail | 2014 |
| Yorkshire Sound Women Network C.I.C. | Information & communication | 2018 |
| Yorkshire Spirits Ltd | Wholesale & retail | 2020 |
| Yorkshire Stones Limited | Mining & quarrying | 2023 |
| Yorkshire Stoves and Fireplaces Ltd | Wholesale & retail | 2011 |
| Yorkshire Supreme Care UK Limited | Health & social care | 2018 |
| Yorkshire Surveyors Limited | Professional & scientific | 2009 |
| Yorkshire Tamil Patham Limited | Hospitality | 2025 |
| Yorkshire Textiles Company (2016) Ltd | Wholesale & retail | 2016 |
| Yorkshire Therapy Lounge Limited | Education | 2019 |
| Yorkshire Trade Bathrooms (Huddersfield) Limited | Wholesale & retail | 2018 |
| Yorkshire Trainers Limited | Wholesale & retail | 2022 |
| Yorkshire Trophies Limited | Wholesale & retail | 2007 |
| Yorkshire Trusted Electrics Limited | Construction | 2024 |
| Yorkshire Vascular Ltd | Health & social care | 2018 |
| Yorkshire Vehicle Sales Limited | Administrative & support | 2009 |
| Yorkshire Vein Clinic Ltd. | Health & social care | 2019 |
| Yorkshire Veterinary Services Ltd | Professional & scientific | 2022 |
| Yorkshire Wedding Jazz Ltd | Arts & recreation | 2024 |
| Yorkshire Weed Control Ltd | Administrative & support | 2018 |
| Yorkshire Wellness Centre Ltd | Health & social care | 2018 |
| Yorkshire West Indian Culturama Carnival Network Ltd | Information & communication | 2018 |
| Yorkshire White Rose Florist Ltd | Wholesale & retail | 2025 |
| Yorkshire Woollen Mills Limited | Wholesale & retail | 1995 |
| Yorkshire Youth and Music Limited | Education | 1981 |
| YORKSHIRE3D Limited | Professional & scientific | 2024 |
| Yorkstone Couriers Limited | Transport & logistics | 2025 |
| Yorubar Ltd | Hospitality | 2024 |
| YOU Buy WE Sell Limited | Wholesale & retail | 2024 |
| Youhum Ltd | Health & social care | 2023 |
| Younger YOU Ltd | Health & social care | 2021 |
| Youngs Properties Developments Limited | Professional & scientific | 2004 |
| Youngworldcostmetics Ltd | Wholesale & retail | 2025 |
| Your Bespoke Midwife Ltd | Health & social care | 2025 |
| Your Three Days Ltd | Other services | 2017 |
| Yousaf Developments Limited | Real estate | 2023 |
| Yousaf Limited | Wholesale & retail | 2014 |
| Yousaf Travels Ltd | Transport & logistics | 2025 |
| YOUSRY3DMED Ltd | Wholesale & retail | 2025 |
| Yousuf Enterprise Ltd | Transport & logistics | 2024 |
| Youth LED Innovation Limited | Health & social care | 2010 |
| Youth Matters Kirklees CIC | Education | 2022 |
| YOWP1 Ltd | Wholesale & retail | 2026 |
| YSY Trading Limited | Wholesale & retail | 2021 |
| YTS Travel Ltd | Transport & logistics | 2026 |
| YUM YUM Youth Ltd | Wholesale & retail | 2023 |
| Yummy Kitchen Limited | Hospitality | 2021 |
| Yummy Yorkshire Limited | Manufacturing | 2012 |
| Yus&E Ltd | Health & social care | 2022 |
| Yvonne Ewing Sales & Marketing Ltd | Administrative & support | 2024 |
| YXI160 Limited | Wholesale & retail | 2025 |
| Z and Z Delights Limited | Wholesale & retail | 2019 |
| Z Corp Ltd | Wholesale & retail | 2020 |
| Z H Khan Ltd | Health & social care | 2022 |
| Z Ishtiaq Optical Services Limited | Health & social care | 2025 |
| Z M S Limited | Other services | 2007 |
| Z&F Properties Limited | Construction | 2018 |
| Z&M365 Limited | Wholesale & retail | 2023 |
| Z.A. Akram Limited | Wholesale & retail | 1992 |
| Z.A.Martin Trading Ltd | Wholesale & retail | 2023 |