| PRECISION CASTING LIMITED | Basic metals | 1962 | Small company accounts |
| PARTECH (ELECTRONICS) LIMITED | Computers, electronics and optics | 1964 | Small company accounts |
| MIDAX ENGINEERING LIMITED | Fabricated metal products | 1975 | Total exemption (full) |
| S.H. FISKE LIMITED | Paper and paperboard | 1978 | Small company accounts |
| R.H. FIBREBOARD CONTAINERS LIMITED | Paper and paperboard | 1980 | Full accounts |
| GOONVEAN ELECTRONICS LIMITED | Repair and installation of machinery | 1982 | Total exemption (full) |
| HEWASWATER ENGINEERING LTD | Fabricated metal products | 1985 | Total exemption (full) |
| OCEAN FISH (RETAIL) LIMITED | Food products | 1986 | Full accounts |
| A & T SERVICES LIMITED | Fabricated metal products | 1990 | Total exemption (full) |
| ASSEMBLY CIRCUIT TECHNOLOGY LIMITED | Repair and installation of machinery | 1993 | Total exemption (full) |
| TANEBERROW LIMITED | Other manufacturing | 1994 | Total exemption (full) |
| 1ST-GEAR.NET LIMITED | Clothing | 2000 | Total exemption (full) |
| ST. AUSTELL GARDEN MACHINERY LIMITED | Repair and installation of machinery | 2003 | Total exemption (full) |
| TEDDINGTON APPLIANCE CONTROLS LIMITED | Machinery and equipment | 2006 | Total exemption (full) |
| TEDDINGTON ELECTRONICS LIMITED | Electrical equipment | 2006 | Total exemption (full) |
| KERNOW MIXERS LIMITED | Glass, ceramics, cement and stone | 2006 | Total exemption (full) |
| MARTINS BAKERY (CORNWALL) LIMITED | Food products | 2007 | Total exemption (full) |
| ALADDIN'S METAL CRAFT LIMITED | Fabricated metal products | 2007 | Total exemption (full) |
| PROQ BARBECUES & SMOKERS LIMITED | Fabricated metal products | 2008 | Total exemption (full) |
| T. K. DEAKIN LIMITED | Other manufacturing | 2009 | Total exemption (full) |
| PENZANCE DRY DOCK (2009) LIMITED | Repair and installation of machinery | 2009 | Total exemption (full) |