PETRA International provides consulting expertise in ocean sciences to the ocean technology sector. The primary focus of the company is marine geoscience consulting associated with seafloor mapping, geotechnical, geological/seismic and hydrographic surveys. 

The company also undertakes a wide range of projects in ocean technology from creating concepts for and leading a partnership in ocean observing systems to the feasibility of using meltwater from icebergs as a bulk source of fresh water.

PETRA has used its extensive knowledge of operational threats of sea ice and icebergs to offshore exploration to assist in proposed commercial oil and gas development scenarios.