| WILLIAM COOK STANHOPE LIMITED | Basic metals | 1940 | Full accounts |
| STOCKTON CASTING COMPANY LIMITED(THE) | Basic metals | 1947 | Small company accounts |
| POTTERS-BALLOTINI LIMITED | Glass, ceramics, cement and stone | 1957 | Full accounts |
| M R B SCHUMAG LTD | Machinery and equipment | 1975 | Full accounts |
| WILLIAM COOK INTERMODAL LIMITED | Machinery and equipment | 1980 | Audit-exempt subsidiary |
| L.H. (QUARRY PLANT) LIMITED | Fabricated metal products | 1980 | Small company accounts |
| TEESCRAFT ENGINEERING LIMITED | Fabricated metal products | 1981 | Group accounts |
| WV ASSOCIATES LIMITED | Other manufacturing | 1984 | Medium company accounts |
| D.A.F. TIMBER LIMITED | Wood products | 1987 | Total exemption (full) |
| THOMPSON (WHOLESALE MEAT) LIMITED | Food products | 1993 | Unaudited abridged |
| SMW ENGINEERING LTD | Fabricated metal products | 1994 | Total exemption (full) |
| TRITON CONTROLS LIMITED | Electrical equipment | 1994 | Total exemption (full) |
| IZUMI PRODUCTS UK LIMITED | Machinery and equipment | 1995 | Total exemption (full) |
| GREENVALE FARMS LIMITED | Chemicals | 1997 | Total exemption (full) |
| AUCKLAND SHEET METAL LIMITED | Fabricated metal products | 1999 | Total exemption (full) |
| SWIFT TIMBER HOMES LIMITED | Other manufacturing | 2000 | Unaudited abridged |
| EURO TRUCK BODIES LIMITED | Fabricated metal products | 2003 | Total exemption (full) |
| EBAC INDUSTRIAL PRODUCTS LIMITED | Electrical equipment | 2003 | Small company accounts |
| MANOR WOODCRAFT LIMITED | Wood products | 2003 | Total exemption (full) |
| CRE8IVE GRAPHICS LIMITED | Other manufacturing | 2004 | Total exemption (full) |
| TRINITY KITCHENS (NE) LIMITED | Furniture | 2004 | Total exemption (full) |
| PLASTIC MOULDINGS NORTHERN LIMITED | Rubber and plastics | 2005 | Total exemption (full) |
| ELDRETT FINCH LIMITED | Fabricated metal products | 2006 | Total exemption (full) |
| NEUE SCHULE LIMITED | Other manufacturing | 2007 | Total exemption (full) |
| T & S BESPOKE KITCHENS LTD | Wood products | 2007 | Total exemption (full) |
| BTL TIMBER AND HARDWARE LIMITED | Wood products | 2008 | Total exemption (full) |
| GROVE REED JOINERY LIMITED | Wood products | 2008 | Total exemption (full) |
| Y R M METAL SOLUTIONS LIMITED | Motor vehicles and parts | 2008 | Total exemption (full) |