| LESJOFORS HEAVY SPRINGS UK LIMITED | Fabricated metal products | 1977 | Full accounts |
| PRACTICAL DEVELOPMENTS (SOUTH WEST) LIMITED | Other manufacturing | 1986 | Audit-exempt subsidiary |
| CORNWALL WOOD TREATMENTS SERVICES LIMITED | Wood products | 1987 | Total exemption (full) |
| WES ENGINEERING SOLUTIONS LIMITED | Fabricated metal products | 1990 | Audit-exempt subsidiary |
| CONTRACT SIGN SYSTEMS LIMITED | Other manufacturing | 1991 | Total exemption (full) |
| THE OPTOELECTRONIC MANUFACTURING CORPORATION (UK) LIMITED | Computers, electronics and optics | 1991 | Total exemption (full) |
| CAMBORNE JOINERY LIMITED | Wood products | 1994 | Total exemption (full) |
| KELTEK CORNISH BREWERY LIMITED | Beverages | 1997 | Total exemption (full) |
| LOU JONES DESIGN LIMITED | Printing and recorded media | 1999 | Total exemption (full) |
| A.E. RODDA & SON LIMITED | Food products | 1999 | Full accounts |
| IN STEEL (BLACKSMITHS & FABRICATORS) LIMITED | Fabricated metal products | 2000 | Total exemption (full) |
| 1ST CALL VISTA LIMITED | Rubber and plastics | 2002 | Total exemption (full) |
| BERRYMAN'S BAKERY LIMITED | Food products | 2003 | Total exemption (full) |
| HARDMETAL ENGINEERING (CORNWALL) LIMITED | Fabricated metal products | 2003 | Audit-exempt subsidiary |
| RAM GASKET SOLUTIONS LIMITED | Rubber and plastics | 2004 | Total exemption (full) |
| D M ORTHOTICS LIMITED | Other manufacturing | 2004 | Total exemption (full) |
| FURNISS OF CORNWALL LIMITED | Food products | 2006 | Small company accounts |
| GRPRO LIMITED | Rubber and plastics | 2008 | Total exemption (full) |
| A&H WELDING SERVICES LIMITED | Repair and installation of machinery | 2009 | Total exemption (full) |
| PRIMA BAKERIES LIMITED | Food products | 2010 | Group accounts |