| 632 Consultancy Limited | Administrative & support | 2017 |
| Alien Asset Management Ltd | Professional & scientific | 2020 |
| Alien Intelligence Ltd | Administrative & support | 2024 |
| Bladon Services Ltd | Professional & scientific | 2021 |
| Connor Road (Parklane) Management Limited | Households | 2007 |
| D & B Systems Ltd | Professional & scientific | 2000 |
| Hadebu Ltd | Manufacturing | 2022 |
| Hartford HEY Limited | Health & social care | 1984 |
| Headgear Ltd | Professional & scientific | 2024 |
| Home Architecture Ltd | Professional & scientific | 2011 |
| Leonard Green (Haulage) Limited | | 1954 |
| Limesky Investment Partners Ltd | Financial services | 2022 |
| Linea Associates Limited | Professional & scientific | 2007 |
| Linea Connect Limited | Administrative & support | 2013 |
| Linea Group Holdings Limited | Professional & scientific | 2014 |
| Linea Group UK Limited | Administrative & support | 2008 |
| Linea Media Ltd | Professional & scientific | 2003 |
| Linea Partners Limited | Other services | 2010 |
| M J Woodworking Ltd | Manufacturing | 2007 |
| Meadowhall Landfill Limited | Water & waste | 1987 |
| Pathgate Ltd | Health & social care | 2023 |
| R H J Developments Limited | Real estate | 1993 |
| Roche Ferre Ltd | Real estate | 2006 |
| RON Hull Demolition Limited | Water & waste | 1992 |
| Ronald Hull JNR. Limited | Water & waste | 1976 |
| Spiralbell Limited | | 1987 |
| Stuart Pease (Fibreglass) Limited | Manufacturing | 1978 |
| Vorbi Technologies Ltd | Extraterritorial | 2010 |
| Woodlands Investment Company (Cheshire) Limited | Real estate | 2015 |