![Gregory P. Stemm](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Gregory P.
Stemm was the founder of Odyssey Marine Exploration, Inc. founded in 1994 where he held the title of Chairman from 2014 to 2019.
Mr. Stemm is also the founder of The Florida Aquarium, Inc., Professional Shipwreck Explorers Association.
He held various former positions including International Director at World Entrepreneurs' Organization of Dallas from 1997 to 1998, Member at Rockefeller Group International, Inc., President at International Marine Minerals Society from 2019 to 2020, International President at Young Entrepreneurs Organization (Canada) from 1986 to 1993, Member at The Nautical Archaeology Society, Member at Marine Technology Society, President at Rockefeller Group Technology Solutions, Inc., Member at Mensa International Ltd., and Member at Underwater Mining Institute.
| Companies | Position | End |
|---|---|---|
International Marine Minerals Society
 International Marine Minerals Society Miscellaneous Commercial ServicesCommercial Services The International Marine Minerals Society (IMMS) is a nonprofit professional organization that unites members from industry, government, academia, and NGOs who share an interest in marine minerals as strategic resources. The private company is based in Honolulu, HI. IMMS promotes understanding, research, and responsible development of marine mineral deposits worldwide through data exchange, publications, meetings, and support for young professionals. The society organizes and sponsors the Underwater Minerals Conference (UMC), provides a voluntary code for environmental management of marine mining, and offers best practice guidelines to encourage sustainable and environmentally conscious marine mineral activities. Members have access to an expert network, conference materials, newsletters, and discounted conference fees, and the society fosters collaboration among government agencies, companies, and researchers to advance marine mineral science, technology, and stewardship. | President | 2019-12-31 |
Rockefeller Group International, Inc.
 Rockefeller Group International, Inc. Real Estate DevelopmentFinance Develops and manages real estate properties | Corporate Officer/Principal | 2004-11-30 |
World Entrepreneurs' Organization of Dalls | Director/Board Member | 1997-12-31 |
Young Entrepreneurs Organization (Canada)
 Young Entrepreneurs Organization (Canada) Miscellaneous Commercial ServicesCommercial Services Operates as membership organisation for entrepreneurs | President | 1992-12-31 |
Underwater Mining Institute | Corporate Officer/Principal | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 12 |
|---|---|
Odyssey Marine Exploration, Inc.
 Odyssey Marine Exploration, Inc. Agricultural Commodities/MillingProcess Industries Engages in the exploration and recovery of deep-ocean shipwrecks worldwide | Process Industries |
Rockefeller Group International, Inc.
Rockefeller Group International, Inc. Real Estate DevelopmentFinance Develops and manages real estate properties | Finance |
Professional Shipwreck Explorers Association | |
International Marine Minerals Society
International Marine Minerals Society Miscellaneous Commercial ServicesCommercial Services The International Marine Minerals Society (IMMS) is a nonprofit professional organization that unites members from industry, government, academia, and NGOs who share an interest in marine minerals as strategic resources. The private company is based in Honolulu, HI. IMMS promotes understanding, research, and responsible development of marine mineral deposits worldwide through data exchange, publications, meetings, and support for young professionals. The society organizes and sponsors the Underwater Minerals Conference (UMC), provides a voluntary code for environmental management of marine mining, and offers best practice guidelines to encourage sustainable and environmentally conscious marine mineral activities. Members have access to an expert network, conference materials, newsletters, and discounted conference fees, and the society fosters collaboration among government agencies, companies, and researchers to advance marine mineral science, technology, and stewardship. | Commercial Services |
Young Entrepreneurs Organization (Canada)
Young Entrepreneurs Organization (Canada) Miscellaneous Commercial ServicesCommercial Services Operates as membership organisation for entrepreneurs | Commercial Services |
World Entrepreneurs' Organization of Dalls | |
The Nautical Archaeology Society
 The Nautical Archaeology Society Miscellaneous Commercial ServicesCommercial Services Operates charitable organization for providing archaeology services | Commercial Services |
Marine Technology Society
 Marine Technology Society Miscellaneous Commercial ServicesCommercial Services Provides advocacy, awareness and advancement and application of marine technology | Commercial Services |
Rockefeller Group Technology Solutions, Inc.
 Rockefeller Group Technology Solutions, Inc. Engineering & ConstructionIndustrial Services Provides engineering and technology services | Industrial Services |
The Florida Aquarium, Inc.
 The Florida Aquarium, Inc. Other Consumer ServicesConsumer Services Provides glass domed aquarium featuring exhibits services | Consumer Services |
Mensa International Ltd. | |
Underwater Mining Institute |
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