| YORK PLASTICS (ENGINEERING) LIMITED | Rubber and plastics | 1959 | Unaudited abridged |
| NORTON ENGINEERING ALLOYS CO. LIMITED | Fabricated metal products | 1972 | Total exemption (full) |
| ELLIS PATENTS LIMITED | Rubber and plastics | 1977 | Full accounts |
| RMSPUMPTOOLS LIMITED | Electrical equipment | 1983 | Full accounts |
| HYDRAMOTION LIMITED | Computers, electronics and optics | 1986 | Total exemption (full) |
| T S BLOOR & SONS LIMITED | Food products | 1988 | Audit-exempt subsidiary |
| T.G. PRECISION ENGINEERING LIMITED | Fabricated metal products | 1989 | Total exemption (full) |
| WINDOW DISTRIBUTION LIMITED | Rubber and plastics | 1990 | Total exemption (full) |
| RYETEC INDUSTRIAL EQUIPMENT LIMITED | Machinery and equipment | 1992 | Total exemption (full) |
| OPTIMUM INTERNATIONAL 2000 LIMITED | Furniture | 1996 | Total exemption (full) |
| THE TOFOO COMPANY LIMITED | Food products | 1999 | Full accounts |
| AC COMMERCIALS (MALTON) LIMITED | Motor vehicles and parts | 1999 | Total exemption (full) |
| NORTON JOINERY LIMITED | Wood products | 2000 | Total exemption (full) |
| CROOTS LIMITED | Clothing | 2002 | Total exemption (full) |
| THE ROBERT FULLER GALLERY LIMITED | Printing and recorded media | 2006 | Total exemption (full) |
| GLASSPLANT SERVICES LIMITED | Repair and installation of machinery | 2006 | Total exemption (full) |
| AM REFRIGERATION (COMMERCIAL) LTD | Repair and installation of machinery | 2006 | Unaudited abridged |
| DERVENTIO BAKERY LIMITED | Food products | 2010 | Unaudited abridged |