| HELSTON FABRICATIONS LIMITED | Fabricated metal products | 1988 | Total exemption (full) |
| BARNSWOOD LIMITED | Computers, electronics and optics | 1994 | Total exemption (full) |
| ROZEN FURNITURE LIMITED | Furniture | 1997 | Total exemption (full) |
| SCORSE FOODS LTD | Food products | 2000 | Total exemption (full) |
| AMBIENT PRESSURE DIVING LIMITED | Other manufacturing | 2000 | Total exemption (full) |
| FOURTH ELEMENT LIMITED | Other manufacturing | 2001 | Unaudited abridged |
| SEAFIT MARINE SERVICES LIMITED | Repair and installation of machinery | 2002 | Total exemption (full) |
| CLAYWORKS LIMITED | Glass, ceramics, cement and stone | 2002 | Total exemption (full) |
| COLLINGTON AND CO LIMITED | Fabricated metal products | 2004 | Total exemption (full) |
| CORNWALL SHED COMPANY LTD | Wood products | 2004 | Total exemption (full) |
| HENRY COWLS & SON LIMITED | Textiles | 2009 | Unaudited abridged |
| NATURE WORKS BRANDS LIMITED | Food products | 2010 | Total exemption (full) |
| DAPR COLLECTIVE LIMITED | Printing and recorded media | 2010 | Total exemption (full) |
| CORNWALL STAIRS LIMITED | Wood products | 2010 | Total exemption (full) |