Development of NEMESIS and the underlying database has been supported by funding from:
- Richard Lounsbery Foundation
- National Oceanographic and Atmospheric Administration
- Smithsonian Institution
- U.S. Coast Guard
- U.S. Fish & Wildlife Service
- The Department of Defense Legacy Program
Current efforts to link NEMESIS to additional databases, implementing a distributed database network for international information access and exchange, serves as a demonstration project under the Global Invasive Species Program (GISP).