| KILCO (INTERNATIONAL) LTD | Chemicals | 1953 | Full accounts |
| SMURFIT WESTROCK CONSUMER BELFAST LIMITED | Paper and paperboard | 1960 | Full accounts |
| BRANKIN ENGINEERING LIMITED | Fabricated metal products | 1965 | Small company accounts |
| WHITEHOUSE ENGINEERING COMPANY LIMITED | Fabricated metal products | 1970 | Total exemption (full) |
| W. HALL LIMITED | Repair and installation of machinery | 1977 | Total exemption (full) |
| J.G. BURNS LIMITED | Fabricated metal products | 1978 | Total exemption (full) |
| PALLET CENTRE LIMITED-THE | Wood products | 1981 | Small company accounts |
| GRAY & ADAMS (IRELAND) LIMITED | Motor vehicles and parts | 1982 | Full accounts |
| ABBEY-CRETE LIMITED | Glass, ceramics, cement and stone | 1984 | Total exemption (full) |
| ELTA-NI LIMITED | Fabricated metal products | 1987 | Audit-exempt subsidiary |
| TRAVAN PRECISION ENGINEERING LTD | Fabricated metal products | 1990 | Total exemption (full) |
| ABBEY KITCHENS & BATHROOMS LIMITED | Furniture | 1995 | Total exemption (full) |
| ROCKLYN ENGINEERING LIMITED | Fabricated metal products | 1997 | Small company accounts |
| ATC SYSTEMS LIMITED | Fabricated metal products | 1999 | Medium company accounts |
| R D MECHANICAL SERVICES LTD | Repair and installation of machinery | 2001 | Total exemption (full) |
| INSPECVISION LIMITED | Computers, electronics and optics | 2003 | Audit-exempt subsidiary |
| WINDOWMATE (FERMANAGH) LIMITED | Other manufacturing | 2004 | Small company accounts |
| ASHERS BAKING COMPANY LIMITED | Food products | 2004 | Total exemption (full) |
| KNIGHT DESIGN ENGINEERING LIMITED | Fabricated metal products | 2004 | Total exemption (full) |
| PIRTEK BELFAST (2005) LTD | Machinery and equipment | 2005 | Unaudited abridged |
| EASI UPLIFTS (MAINTENANCE) LIMITED | Repair and installation of machinery | 2007 | Small company accounts |