Greg Stemm is an entrepreneur, pioneer and widely recognized leader in the field of deep-ocean exploration. He has played an important role in the development of new advanced technologies and private sector standards for ocean mineral exploration, shipwreck archaeology and underwater resource management for over 30 years.

Mr. Stemm is currently the President of the International Marine Minerals Society (IMMS), the oldest and largest international organization with the mission to promote the field of ocean mineral science, research and commerce. Previously, he was Chairman of the Board for Odyssey Marine Exploration until June 2019 and is currently Chairman Emeritus. He also served as Chief Executive Officer of Odyssey from January 2008 to October 2014 and as a Director and in various capacities including Chairman and Director of Operations since May 1994. During this time, he was responsible for research, project development, funding and operations on all shipwreck, marine exploration and offshore mineral projects.

He has authored and edited over 50 papers and articles on deep-ocean marine exploration and archaeological investigations, and has given hundreds of lectures on the subject to a variety of venues. He is the co-editor of the Oceans Odyssey series which features a broad range of scientific papers relating to shipwrecks and exploration in the deep ocean. He was also a panelist at the 1998 Law of the Sea Institute and was appointed to four consecutive terms to the United States delegation to the United Nations Educational, Scientific and Cultural Organization (UNESCO) expert meeting to negotiate the Convention for the Protection of Underwater Cultural Heritage (CPUCH) at UNESCO headquarters in Paris, France.

Mr. Stemm has been featured as an expert on deep-ocean exploration on international television and radio programs for the past thirty years.