| 10SQUARED Limited | Manufacturing | 2004 |
| 1970AD Ltd | Information & communication | 2025 |
| Afmj Limited | Information & communication | 2026 |
| AH Fleet Solutions Ltd | Professional & scientific | 2024 |
| Allerthorpe Conservatories Ltd. | Manufacturing | 2002 |
| Apex Digital Analytics Ltd | Professional & scientific | 2023 |
| Applewick Creative Limited | Information & communication | 2023 |
| Arras Accountancy Services Ltd | Professional & scientific | 2012 |
| Ashcourt (Bridlington) Limited | Construction | 2015 |
| Ashcourt (Cavendish) Limited | Construction | 2015 |
| Ashcourt (Durham & Tees Valley) Limited | Transport & logistics | 1980 |
| Ashcourt (Durham) Limited | Construction | 2015 |
| Ashcourt (Lincolnshire) Limited | Construction | 1984 |
| Ashcourt (Pocklington) Limited | Real estate | 2019 |
| Ashcourt (Stockholm Road) Limited | Real estate | 2015 |
| Ashcourt (West Yorkshire) Limited | Transport & logistics | 2004 |
| Ashcourt Aggregates Limited | Construction | 2018 |
| Ashcourt Building Materials Limited | Financial services | 2023 |
| Ashcourt Commercial Developments Limited | Manufacturing | 2023 |
| Ashcourt Concrete Limited | Manufacturing | 2015 |
| Ashcourt Construction Limited | Construction | 1922 |
| Ashcourt Contracts Limited | Construction | 2009 |
| Ashcourt Demolition Limited | Construction | 2021 |
| Ashcourt Developments Limited | Construction | 2020 |
| Ashcourt Farms Limited | Agriculture & fishing | 2014 |
| Ashcourt Fuels Limited | Wholesale & retail | 2017 |
| Ashcourt Group Capital Limited | Financial services | 2005 |
| Ashcourt Group Holdings Limited | Financial services | 2024 |
| Ashcourt Group Limited | Financial services | 2018 |
| Ashcourt Highways Limited | Construction | 2018 |
| Ashcourt Homes Limited | Construction | 2016 |
| Ashcourt Logistics Limited | Financial services | 2023 |
| Ashcourt Plant Limited | Construction | 2018 |
| Ashcourt Properties (Newland) Limited | Hospitality | 2014 |
| Ashcourt Properties Limited | Real estate | 1996 |
| Ashcourt Quarries Limited | Mining & quarrying | 2019 |
| Ashcourt Recycling Limited | Water & waste | 2023 |
| Ashcourt Student Accommodation Limited | Hospitality | 2017 |
| Ashcourt Withernsea Limited | Construction | 2023 |
| Aycliffe Landfill Limited | Water & waste | 2003 |
| Barley AVE Holdings Ltd | Financial services | 2024 |
| Barn Gaites Limited | Real estate | 2026 |
| Barrett Steel Erectors Limited | Construction | 2011 |
| Bear and Rose Limited | Wholesale & retail | 2020 |
| Becklands Land-Based Outdoor Studies AP Ltd | Education | 2024 |
| Beechwood Financial Holdings Ltd | Financial services | 2024 |
| Best of British Foods Ltd | Manufacturing | 2026 |
| BGH (Hull) Limited | Transport & logistics | 2014 |
| Bond Well-Being Services Ltd | Health & social care | 2022 |
| Brianplant Holdings Limited | Financial services | 2018 |
| Brock's Explosives Limited | Manufacturing | 1967 |
| Burn Wealth Management Limited | Professional & scientific | 2016 |
| Carrington House Consulting Limited | Information & communication | 2023 |
| Cathcart Engineering Ltd | Professional & scientific | 2022 |
| CGC Resolutions Limited | Professional & scientific | 2007 |
| Clarke HR Consulting Ltd | Administrative & support | 2025 |
| Clarke Strategy Limited | Administrative & support | 2021 |
| Community Publications Holdings Limited | Financial services | 2021 |
| Community Publications Limited | Information & communication | 2000 |
| Contact Grills (Pocklington) Ltd | Wholesale & retail | 2019 |
| Danaleks Ltd | Transport & logistics | 2021 |
| David Flynn Limited | Construction | 2004 |
| David Long Designs LLP | | 2020 |
| Dayward Services Limited | Manufacturing | 2002 |
| Detectamet Ltd | Wholesale & retail | 2004 |
| Diamond Point Research Ltd | Professional & scientific | 1979 |
| Digital Nursery Limited | Administrative & support | 2012 |
| Dowhall Farms Limited | Agriculture & fishing | 2021 |
| Dunnington Hand Car Wash Limited | Transport & logistics | 2017 |
| Dusty Dingo Limited | Information & communication | 2023 |
| East Yorkshire Urology & Vasectomies Ltd | Health & social care | 2012 |
| EC Surfacing Ltd | Construction | 2009 |
| Eco Custom Homes Limited | Construction | 2011 |
| Eco Holiday Homes Limited | Extraterritorial | 2009 |
| EKO Custom Homes Limited | Construction | 2015 |
| EKO Resorts Limited | Extraterritorial | 2012 |
| F & W Swanborough Ltd | Hospitality | 2022 |
| F. Hall & Sons Limited | Construction | 1999 |
| Fleet Lane Limited | Construction | 2022 |
| Foss Interiors Ltd | Professional & scientific | 2025 |
| Foster Street Limited | Real estate | 2021 |
| Foxinabox Ltd | Wholesale & retail | 2019 |
| Fresh Aspect Limited | Professional & scientific | 2018 |
| Fusion Event Hospitality Ltd | Hospitality | 2025 |
| G Johnson (Pocklington) Ltd | Construction | 2021 |
| Gameslack Farm Limited | Construction | 2022 |
| Goodwash Ltd | Administrative & support | 2023 |
| Graveler Bidco Limited | Financial services | 2025 |
| Graveler Midco 2 Limited | Financial services | 2025 |
| Graveler Midco Limited | Financial services | 2025 |
| Graveler Topco Limited | Financial services | 2025 |
| Grenpark Limited | Construction | 2006 |
| Grovemere Developments Limited | Construction | 2011 |
| H F Warehousing Limited | Transport & logistics | 2018 |
| Hairways (York) Limited | Other services | 2003 |
| Hambleton Quinn Limited | Professional & scientific | 2024 |
| Harrison Osborne Pocklington Limited | Wholesale & retail | 2025 |
| Hawk EYE Consulting Ltd | Professional & scientific | 2014 |
| Hearing Consultants Ltd | Wholesale & retail | 2021 |
| Highfinish Express Paintworx Limited | Wholesale & retail | 2022 |