| ESSENTRA COMPONENTS LIMITED | Rubber and plastics | 1955 | Audit-exempt subsidiary |
| OWEN GREENINGS & MUMFORD LIMITED | Rubber and plastics | 1962 | Group accounts |
| BIO-RAD ABD SEROTEC LTD | Pharmaceuticals | 1981 | Full accounts |
| METIER TECHNOLOGIES LIMITED | Machinery and equipment | 1984 | Total exemption (full) |
| CARNHILL TRANSFORMERS LIMITED | Electrical equipment | 1985 | Total exemption (full) |
| SHEEHAN HAULAGE & PLANT HIRE LIMITED | Glass, ceramics, cement and stone | 1988 | Total exemption (full) |
| OXFORD TECHNICAL SOLUTIONS LIMITED | Computers, electronics and optics | 1998 | Medium company accounts |
| RMW (WITNEY) LTD | Fabricated metal products | 1999 | Total exemption (full) |
| INDUSTRIAL VISION SYSTEMS LTD. | Other manufacturing | 2000 | Audit-exempt subsidiary |
| STONEWORLD (OXFORDSHIRE) LIMITED | Glass, ceramics, cement and stone | 2002 | Total exemption (full) |
| OPRIMA LIMITED | Computers, electronics and optics | 2002 | Total exemption (full) |
| KNOXED LIMITED | Computers, electronics and optics | 2004 | Total exemption (full) |
| CONIFER JOINERY LTD | Wood products | 2005 | Total exemption (full) |
| ARTISAN SCREEN LIMITED | Printing and recorded media | 2005 | Total exemption (full) |
| TEMPLE BOOKBINDERS LIMITED | Printing and recorded media | 2007 | Total exemption (full) |
| SAR UK LTD | Electrical equipment | 2007 | Small company accounts |
| YASA LIMITED | Electrical equipment | 2009 | Full accounts |