| WHS PLASTICS LARKHALL LTD | Pickering | 1990 | Full accounts |
| DUDLEY ASSOCIATES LIMITED | Lutterworth | 1990 | Total exemption (full) |
| PSP MARINE TAPES LIMITED | St. Albans | 1990 | Total exemption (full) |
| DATA PLASTICS LIMITED | Oxford | 1990 | Group accounts |
| PF CONCEPT UK OPERATIONS LTD | Blackpool | 1990 | Full accounts |
| LINECROSS LIMITED | Oakham | 1990 | Full accounts |
| P.T.F.E. DEVELOPMENTS LTD. | Bolton | 1990 | Total exemption (full) |
| NEOPERL U.K. LIMITED | Malvern | 1990 | Medium company accounts |
| MOORFIELD INDUSTRIES LIMITED | Derbyshire | 1990 | Total exemption (full) |
| NORFRAN PLASTICS LIMITED | North Shields | 1990 | Small company accounts |
| KINGFISHER UPVC WINDOWS & DOORS LIMITED | Leeds | 1990 | Medium company accounts |
| ASHI GROUP LIMITED | Norwich | 1990 | Full accounts |
| RUBBER & PLASTIC PRODUCTS (NI) LIMITED | Dungannon | 1990 | Full accounts |
| TRODAT (UK) LIMITED | Renfrewshire | 1990 | Small company accounts |
| PLASTIL (UK) LTD. | Shrewsbury | 1990 | Total exemption (full) |
| CONICA LTD | Newark | 1990 | Medium company accounts |
| TOP TREADS LIMITED | West Yorkshire | 1990 | Total exemption (full) |
| WELDTITE PRODUCTS LIMITED | Barton upon Humber | 1990 | Small company accounts |
| WINDOW DISTRIBUTION LIMITED | Malton | 1990 | Total exemption (full) |
| TRANSAM EXTRUSIONS LTD | Barton le Clay | 1990 | Unaudited abridged |
| COUNTERPLAS LIMITED | Walsall | 1990 | Full accounts |
| CORAL WINDOWS (BRADFORD) LIMITED | Bradford | 1990 | Small company accounts |
| BERICAP U.K. LIMITED. | Hull | 1990 | Full accounts |
| POLYMER SYSTEMS TECHNOLOGY LIMITED | Lincoln Road, High Wycombe | 1990 | Unaudited abridged |
| T.C. SHIELDING LIMITED | Ross on Wye | 1991 | Total exemption (full) |
| LUBEPACK LIMITED | Wardle, Nantwich | 1991 | Total exemption (full) |
| CRAEMER UK LIMITED | Telford | 1991 | Full accounts |
| ROBERTS & CUBBAGE JOINERY LIMITED | Bolton | 1991 | Total exemption (full) |
| WCS ENVIRONMENTAL ENGINEERING LTD | London | 1991 | Audit-exempt subsidiary |
| AGENTDRAW LIMITED | Leicester | 1991 | Total exemption (full) |
| FORMWELL PLASTICS LIMITED | Leicester | 1991 | Total exemption (full) |
| ACM BEARINGS LIMITED | Rotherham | 1991 | Small company accounts |
| AIRMARK SYSTEMS LIMITED | Heanor | 1991 | Total exemption (full) |
| ALFA GOMMA (UK) LIMITED | St. Helens | 1991 | Medium company accounts |
| KASAI UK LTD | Washington | 1991 | Full accounts |
| SUMIKA POLYMER COMPOUNDS (UK) LTD | Havant | 1991 | Full accounts |
| COLESHILL PLASTICS LIMITED | Coventry | 1991 | Total exemption (full) |
| J.P.K. TRADE SUPPLIES LIMITED | Banes | 1991 | Total exemption (full) |
| LASER PROTOTYPES (EUROPE) LIMITED | Belfast | 1991 | Unaudited abridged |
| SILGAN CLOSURES UK LIMITED | Doncaster | 1991 | Full accounts |
| CONTAMAC LIMITED | Saffron Walden | 1991 | Full accounts |
| GREIF UK PLASTICS LTD | Cheshire | 1991 | Full accounts |
| ARMSTRONG MEDICAL LTD | Coleraine | 1991 | Full accounts |
| SELECT WINDOWS (HOME IMPROVEMENTS) LIMITED | Halesowen | 1991 | Full accounts |
| FLOPLAST LIMITED | Sittingbourne | 1991 | Full accounts |
| BEACONS PRODUCTS LIMITED | Mid Glamorgan | 1991 | Total exemption (full) |
| PIRELLI UK TYRES LIMITED | Burton-on-Trent | 1991 | Full accounts |
| MATRIX POLYMERS LIMITED | Liverpool | 1991 | Group accounts |
| RYDALE WINDOWS (MANUFACTURING) LIMITED | Halesowen | 1991 | Total exemption (full) |
| VIP-SYSTEM LIMITED | Clydebank | 1991 | Total exemption (full) |
| POLYSTYRENE PACKING SUPPLIES LIMITED | Off Shaw Road | 1991 | Unaudited abridged |
| ADVANCED PLASTIC TECHNOLOGY LIMITED | Milton Keynes | 1991 | Total exemption (full) |
| MATERIALS HANDLING PRODUCTS LIMITED | Swadlincote | 1991 | Total exemption (full) |
| VIKING EXTRUSIONS LIMITED | Worthing | 1991 | Total exemption (full) |
| PLASTIFLEX (UK) LIMITED | Wakefield | 1991 | Small company accounts |
| F X ENGINEERING LIMITED | Farnham | 1991 | Total exemption (full) |
| PLASTIC FURNITURE COMPANY LTD | Gateshead | 1991 | Total exemption (full) |
| FALCON TRUNKING SYSTEMS LIMITED | Lancs | 1991 | Total exemption (full) |
| ACTIONPLAS LIMITED | Pudsey | 1991 | Total exemption (full) |
| EUROCELL PROFILES LIMITED | Alfreton | 1991 | Full accounts |