- HARTMAN ENGINEERING (HOLDINGS) LIMITED- 16- 19 COPPERFIELDS, SPITAL STREET, DARTFORD, DA1 2DE 
- DUNHAM ENGINEERING SERVICES LIMITED- 98 CHURCH STREET, HUNSLET, LEEDS, LS10 2AZ 
- CYRIL HUMPHREY WESTIN- Born May 1928 - 442 HUDDERSFIELD ROAD, MIRFIELD, WEST YORKSHIRE, WF14 0EE 
- WESTIN DOUGLAS STAGG- 137 ABBOTS ROAD, ABBOTS LANGLEY, HERTFORDSHIRE, ENGLAND, WD5 0BJ 
- SALLY AMANDA WESTIN- Born September 1963 - SCHOLES FARM HIGH STREET, STAINLAND, HALIFAX, WEST YORKSHIRE, HX4 9PQ 
- SEAHORSE PROCESS ENGINEERING LIMITED- 2 FIELDGATE LAWN, KENILWORTH, WARWICKSHIRE, UNITED KINGDOM, CV8 1RR 
- GILLINGHAM ENGINEERING COMPANY LIMITED- HILDEN PARK HOUSE 79 TONBRIDGE ROAD, HILDENBOROUGH, TONBRIDGE, KENT, UNITED KINGDOM, TN11 9BH 
- CHECKMATE FLEXIBLE ENGINEERING LIMITED- 6 Pegasus Way, Bowerhill, Melksham, England, SN12 6TR 
- GILLINGHAM ENGINEERING COMPANY LIMITED- HILDEN PARK HOUSE 79 TONBRIDGE ROAD, HILDENBOROUGH, TONBRIDGE, KENT, UNITED KINGDOM, TN11 9BH 
- UK CIVIL ENGINEERING LIMITED- 1 PARK LANE, WILBERFOSS, YORK, YO41 5PW 
- INTERNATIONAL ENGINEERING INVEST LIMITED- FIRMENWELTEN ACCOUNTANCY HOUSE 4 PRIORY ROAD, KENILWORTH, WARWICKSHIRE, CV8 1LL 
- EXPRESS ENGINEERING (THOMPSON) LIMITED- KINGSWAY NORTH, TEAM VALLEY TRADING ESTATE, GATESHEAD, TYNE AND WEAR, NE11 0EG 
- COLORADO CONSTRUCTION & ENGINEERING LIMITED- COLORADO HOUSE BUILDING 1004, WOOD ROAD ROSYTH, DUNFERMLINE, FIFE, UNITED KINGDOM, KY11 2EA 
- PENTANGLE ENGINEERING SERVICES LIMITED- 20 St. Catherines Road, Grantham, Lincolnshire, England, NG31 6TT 
- HSB ENGINEERING INSURANCE LIMITED- Born June 1989 - NEW LONDON HOUSE 6 LONDON STREET, LONDON, EC3R 7LP 
- TRI-TECH ENGINEERING LIMITED- UNIT 3-4 INNOVATION WAY NORTH STAFFS ENTERPRISE PA, STOKE-ON-TRENT, STAFFORDSHIRE, UNITED KINGDOM, ST6 4BF 
- TRANSWORLD BUSINESS & ENGINEERING LIMITED- 16 ARGYLE STREET, RM 2001 MONGKOK COMM CTR, HONG KONG, MONGKOK, HONG KONG, NA 
- ADVANCED ENGINEERING (UK) LIMITED- NO. 3 CAROLINE COURT, 13 CAROLINE STREET, BIRMINGHAM, UNITED KINGDOM, B3 1TR 
- G CASWELL ENGINEERING LIMITED- UNITS 2-4 MANTON ROAD, RUSHDEN, NORTHAMPTONSHIRE, UNITED KINGDOM, NN10 0JT 
- CHECKMATE FLEXIBLE ENGINEERING LIMITED- 6 Pegasus Way, Bowerhill, Melksham, England, SN12 6TR