Dave Oliver Hydrographic Services Limited (DOHS Ltd) was established in 1989 to supply permanent, contract surveyors and temporary consultancy services to the onshore and offshore oil and gas industry, hydrographic, telecommunications and construction markets.

Our portfolio of services has been continually developed and enhanced due to changes in industry practice and to fulfill client requirements. Areas of technical expertise include wreck detection and debris recovery surveys, cable and pipeline route surveys including desk studies, cable and pipe lay operations and seismic surveys.

Through the continued supply of highly skilled, experienced and professional personnel to the leading companies in the offshore industries DOHS Ltd has established a reputation for excellence and first rate service.