Harwand House, 179-187, London, Essex, United Kingdom

Tel. #: +44 1702 300101

55 Cliffsea Gro, Leigh-on-sea, Essex, United Kingdom

Tel. #: +44 1702 75095

River House, Quay Street, Wivenhoe, Colchester, Essex, United Kingdom

Tel. #: +44 1206 823337

Website: http://www.dmcmarine.com;

Offers: Analysis of Marine Accidents, Analysis of Collisions, Development of Classification Society Rules, Small Submersibles, FRP structures of unusual types,

120 Warley Hill, Warley, Brentwood, Essex, United Kingdom

Tel. #: +44 1277 221262

Website: http://www.glencot.co.uk;

90 High St, Dunmow, Essex, United Kingdom

Tel. #: +44 1371 876861

40 Springfield Road, Sudbury, Essex, United Kingdom

Tel. #: +44 1787 377154

Website: http://www.email.com;

Trinity House, 1-3 Trinity Square, South Woodham Ferrers, Chelmsford, Essex, United Kingdom

Tel. #: +44 1245 324050

Beacon Hill Farm, Kelvedon Hall Lane, Kelvedon Hatch, Brentwood, Essex, United Kingdom

Tel. #: +44 1277 373331

Fortescues, Farmbridge End, Good Easter, Chelmsford, Essex, United Kingdom

Tel. #: +44 1245 231804

The Studio, Swatchways Brabant Rd, North Fambridge, Chelmsford, Essex, United Kingdom

Tel. #: +44 1621 740095