OBIS Partners are organisations with whom OBIS cooperates to mutually support each others goals and activities. They include:
- Global Biodiversity Information Facility (GBIF)
- Pacific Biodiversity Information Network (PBIN)
- Inter-American Biodiversity Information Network (IABIN)
- Biodiversity Information Standards (Taxonomic Data Working Group, TDWG)
- Food and Agriculture Organization (FAO)
- International Council for the Exploration of the Sea (ICES)
- National Center for Biotechnology Information (NCBI)
- Consortium for the Barcode of Life (CBOL)
- Scientific Committee on Ocean Research (SCOR)
- International Association for Biological Oceanography (IABO)
- Global Earth Observation System of Systems (GEOSS)
- Ocean.US and Integrated Ocean Observing System (IOOS)
- Marine Metadata Interoperability project (MMI)
- Global Change Master Directory (GCMD)
- World Conservation Monitoring Centre (WCMC)
- International Union for the Conservation of Nature (IUCN)
- The Nature Conservancy (TNC)
- NatureServe
- Conservation International (CI)
- Diversitas
- Species 2000
- Integrated Taxonomic Information System (ITIS)
- Society for the Management of European Biodiversity Data and its World Register of Marine Species
