Civil contracting:
Leighton contractors, McConnell Dowell constructions. Transfield constructions. Reid Constructions, Clough Engineering, Eden Constructions, Haslin constructions, Waterway constructions, Concrete Constructions. Thiess Constructions. Candac.

Marine Engineering:
Lloyds Registrar, Sydney Ferries Corporation, Depth Maritime Services, Patricks Defence, Bureau Veritas, Australian Customs Services.

Cable Laying:
Cable and Wireless, Global Marine, Network Design Construction, Telstra, Alcatel, Pirelli Systems, Siemens Thiess, Alstom, Energy Australia.

Cable Burial:
Telstra Australia, Global Marine, Alcatel, Pirelli, Siemens Thiess Joint Venture, Energy Australia.

Cable Detection:
Telstra Australia, Dept Main Roads, Energy Australia, State Rail Authority of NSW. Thiess Services.

Patterson Britton Consultants, Roads and Traffic Authority, State Rail. Rail Corp, Tierney Opus, Dept of Commerce of NSW, d’Albora Marine Group, Sydney Ports Authority, Manly Council.

Environmental Controls:
Walker Corporation, Australand, Concrete Constructions, Lucas Drilling, Haslin Constructions, Dubbo City Council, Wards Constructions. Thiess Constructions. Douglas and Partners.

Conduit Proving:
The Diving Co has been involved with the locating and proving of ocean conduits for Alcatel and Telstra Australia