| AMNITEC LIMITED | Fabricated metal products | 1957 | Full accounts |
| FSG TOOL & DIE LIMITED | Fabricated metal products | 1961 | Medium company accounts |
| LLANHARAN CONCRETE CO.LIMITED | Other manufacturing | 1965 | Small company accounts |
| PONTYPRIDD PRECISION ENGINEERING LIMITED | Fabricated metal products | 1988 | Total exemption (full) |
| T.W. JOINERY (SOUTH WALES) LIMITED | Wood products | 1989 | Total exemption (full) |
| SMITHS MECHANICAL SERVICES LIMITED | Repair and installation of machinery | 1991 | Total exemption (full) |
| BEACONS PRODUCTS LIMITED | Rubber and plastics | 1991 | Total exemption (full) |
| DESIGN AND SUPPLY LIMITED | Fabricated metal products | 1994 | Total exemption (full) |
| CONTROL GEAR (WELDEX) LIMITED | Fabricated metal products | 1996 | Total exemption (full) |
| M.K. (WALES) LIMITED | Food products | 1998 | Total exemption (full) |
| FRANAIR LIMITED | Repair and installation of machinery | 1998 | Total exemption (full) |
| MASTERFOIL LIMITED | Printing and recorded media | 1999 | Total exemption (full) |
| LASERS ARE US LIMITED | Other manufacturing | 2001 | Total exemption (full) |
| DABHAND SIGNS LTD | Printing and recorded media | 2003 | Total exemption (full) |
| DAVID HUGHES INDUSTRIAL ROLLER DOORS LIMITED | Other manufacturing | 2007 | Total exemption (full) |
| KNIGHT PRECISION TOOLING LIMITED | Rubber and plastics | 2007 | Total exemption (full) |