Subsidiary Companies
Neptune Marine Services’ depth and breadth of diverse capabilities is derived from the stable of related marine businesses that form the company’s operational core. These subsidiaries include:
Allied Diving Services
Based in Perth, Western Australia, Allied Diving Services was founded in 1999 as a civil marine and offshore diving contractor. Allied Diving was formed as a response to industry demand for a cost effective and knowledgeable diving supplier. The company has expertise attained from many years of exposure to all facets of underwater work and offers services including NDT/inspection, construction, maintenance & repair and client support.
Territory Diving Services
Strategically located and regionally capable, Territory Diving Services has been conducting commercial diving & ROV operations throughout North Australia and South East Asia since 1981. Based in Darwin, the company services inshore, coastal and offshore clients in various commercial diving fields,providing them with the highest levels of quality and service.
Subsea Developments
Subsea Developments provides solution based engineering and management consultancy services, with a key focus on subsea and pipeline engineering, to the offshore oil and gas industry. Established in 1999, the Perth based company is dedicated to delivering engineering solutions that meet all requirements of safety, environmental and industry standards. With a proven track record and highly qualified personnel, Subsea Developments is recognised as a leading service provider.
Link Weld Engineering
Link Weld is a Perth based engineering and fabrication specialist, catering to the offshore and onshore oil and gas industry. Link Weld has the expertise and facilities to design, manufacture and install piping, pressure vessels, structural components as well as a range of other products for the oil and gas sector. The company has a demonstrated commitment to quality and a track record for meeting production deadlines and providing cost effective solutions.
US Underwater Services
Based in Burleson, Texas, US Underwater Services (USUS) provides a full range of commercial diving services to both inshore and offshore clients. Services include underwater construction, HAZMAT diving, tank cleaning & inspections, emergency response and offshore services. USUS has been servicing the US diving industry for over 18 years and is a member of the Association of Diving Contractors and the American Water Works Association.
Tri-Surv Geomatics
Tri-Surv Geomatics provides a diverse array of specialist hydrographic surveying and consultancy services to the offshore oil and gas industry. Tri-Surv’s capabilities include geophysical, geotechnical, positioning and construction support services as well as a dedicated Deepwater division that provides rig positioning services in any water depth. Tri-Surv’s dynamic and flexible approach allows the company to provide cost-effective service solutions that are tailored to meet the stringent requirements of its customers.
Ross Deeptech
Based in Aberdeen, Scotland, Neptune Ross Deeptech is a highly respected provider of support services to the subsea oil and gas and renewable energy sectors. Neptune Ross Deeptech enhances and expands Neptune's current fabrication and manufacturing capabilities, providing a base to service clients in the North Sea and Europe. Neptune Ross Deeptech manufactures specialist subsea and offshore oil and gas equipment and provides support services for production, drilling, construction and intervention projects in deepwater areas.
Sea-Struct
Sea-Struct is an industry leader in the engineering design, manufacture, supply and installation of pipeline stabilisation products and services for the offshore oil and gas industry. Based in Fremantle, Western Australia, and with offices in Singapore, Indonesia as well as representation in the UAE and South Korea, Sea-Struct also provides offshore grouting, erosion control equipment and personnel. The company's innovative solutions and software have achieved international accreditation from third parties including DNV and Bureau Veritas.
International Office - Europe
Neptune Marine Services has a European office, based in Aberdeen, Scotland. Responsible for business development in the area, the European office is introducing the patented NEPSYS technology to support the substantial subsea inspection, repair and maintenance (IRM) market in the North Sea. Fiona Davies, a former spokesperson for the International Energy Agency in Paris, is the Business Development Manager in the UK.

