| WECORI LIMITED | Machinery and equipment | 1947 | Total exemption (full) |
| R H BOWDEN & SON LIMITED | Other manufacturing | 1970 | Total exemption (full) |
| MORGANITE ELECTRICAL CARBON LIMITED | Other manufacturing | 1971 | Full accounts |
| C. & P. ENGINEERING SERVICES LIMITED | Computers, electronics and optics | 1973 | Total exemption (full) |
| GEMMAK ENGINEERING LIMITED | Fabricated metal products | 1974 | Total exemption (full) |
| SEMINAR COMPONENTS (U.K.) LIMITED | Fabricated metal products | 1974 | Small company accounts |
| SPEEDY CABLES (LONDON) LIMITED | Motor vehicles and parts | 1975 | Total exemption (full) |
| ENVICO ENGINEERING LIMITED | Rubber and plastics | 1976 | Medium company accounts |
| PLANEWEIGHS LIMITED | Repair and installation of machinery | 1977 | Total exemption (full) |
| SEETALL FURNITURE LIMITED | Furniture | 1977 | Total exemption (full) |
| HANCOCK AND BROWN (TIMBER) LIMITED | Wood products | 1977 | Total exemption (full) |
| GOWER CHEMICALS LIMITED | Chemicals | 1978 | Small company accounts |
| WOODLOCK HOLDINGS LIMITED | Paper and paperboard | 1981 | Group accounts |
| IMPGROVE LIMITED | Other manufacturing | 1981 | Total exemption (full) |
| AFON ENGINEERING LIMITED | Fabricated metal products | 1981 | Small company accounts |
| SOUTH WALES INDUSTRIAL VALVES SERVICES LIMITED | Repair and installation of machinery | 1981 | Small company accounts |
| VALLEY ENGRAVING LIMITED | Other manufacturing | 1982 | Total exemption (full) |
| ROTAFIX (NORTHERN) LIMITED | Glass, ceramics, cement and stone | 1984 | Unaudited abridged |
| VISCOSE CLOSURES LIMITED | Rubber and plastics | 1984 | Full accounts |
| MASSILLY (UK) LIMITED | Fabricated metal products | 1984 | Small company accounts |
| DISTINCTION WINDOWS LIMITED | Rubber and plastics | 1984 | Total exemption (full) |
| COURTYARD ELECTRONICS LIMITED | Computers, electronics and optics | 1985 | Total exemption (full) |
| ZETA ALARMS LIMITED | Electrical equipment | 1985 | Medium company accounts |
| SOUTH WALES WINDOW BLIND CENTRE LIMITED | Other manufacturing | 1988 | Total exemption (full) |
| PRESS GLASS LIMITED | Glass, ceramics, cement and stone | 1988 | Full accounts |
| EVAN REES (BUTTER) LIMITED | Food products | 1989 | Total exemption (full) |
| SWANSEA COMMERCIAL BODY BUILDERS LIMITED | Motor vehicles and parts | 1989 | Total exemption (full) |
| FFOREST PARC BAKERY LIMITED | Food products | 1990 | Unaudited abridged |
| ROLLACLAD LIMITED | Fabricated metal products | 1990 | Unaudited abridged |
| CHIC BLINDS LIMITED | Other manufacturing | 1990 | Total exemption (full) |
| SEA-LIFT DIVING LIMITED | Repair and installation of machinery | 1991 | Unaudited abridged |
| NURSE & PAYNE LIMITED | Glass, ceramics, cement and stone | 1991 | Total exemption (full) |
| SWANSEA INDUSTRIAL COMPONENTS LIMITED | Electrical equipment | 1992 | Total exemption (full) |
| COMPASS INTERNATIONAL TRADING LIMITED | Rubber and plastics | 1992 | Total exemption (full) |
| CAERBONT AUTOMOTIVE INSTRUMENTS LIMITED | Computers, electronics and optics | 1993 | Total exemption (full) |
| OXFORD DIECAST LIMITED | Other manufacturing | 1993 | Total exemption (full) |
| INSPIRATION LIMITED | Other manufacturing | 1994 | Total exemption (full) |
| PRESS GLASS CLIMATE LIMITED | Other manufacturing | 1995 | Full accounts |
| WESTERN CARBONS LTD | Other manufacturing | 1995 | Total exemption (full) |
| SWAN ALLOY UK LTD. | Other manufacturing | 1996 | Full accounts |
| ALTERNATIVE PRECISION SHEET METAL LIMITED | Fabricated metal products | 1997 | Total exemption (full) |
| SPECTRUM GLASS SOLUTIONS LTD. | Rubber and plastics | 2000 | Total exemption (full) |
| WHS CANNING BRETT LTD | Motor vehicles and parts | 2000 | Small company accounts |
| AMCOR FLEXIBLES SWANSEA LIMITED | Rubber and plastics | 2000 | Full accounts |
| ROPE & SLING SPECIALISTS LIMITED | Machinery and equipment | 2000 | Full accounts |
| SAMATRIX LIMITED | Fabricated metal products | 2001 | Total exemption (full) |
| LAB ENGINEERING (SOUTH WALES) LIMITED | Fabricated metal products | 2001 | Total exemption (full) |
| GRANITE WORKTOPS LIMITED | Glass, ceramics, cement and stone | 2001 | Total exemption (full) |
| STARBANG LIMITED | Rubber and plastics | 2001 | Total exemption (full) |
| DTR MEDICAL LIMITED | Pharmaceuticals | 2002 | Small company accounts |
| AXIUM PROCESS LIMITED | Fabricated metal products | 2002 | Total exemption (full) |
| ALPHA ELECTRICS CONTRACTING LIMITED | Repair and installation of machinery | 2002 | Total exemption (full) |
| CYDEN LIMITED | Other manufacturing | 2002 | Full accounts |
| ALCHEMY TECHNOLOGIES LIMITED | Other manufacturing | 2002 | Total exemption (full) |
| LAKESIDE WINDOW SYSTEMS LTD | Other manufacturing | 2002 | Total exemption (full) |
| ELECTECHS LTD | Computers, electronics and optics | 2002 | Total exemption (full) |
| EAST SIDE PRINTERS LIMITED | Printing and recorded media | 2002 | Total exemption (full) |
| HILL GRWP LTD | Glass, ceramics, cement and stone | 2003 | Total exemption (full) |
| CHILLWISE SERVICES LTD | Repair and installation of machinery | 2003 | Total exemption (full) |
| EQUIPMENT SERVICES & ENGINEERING LIMITED | Repair and installation of machinery | 2003 | Total exemption (full) |