All organizations are welcome to become EI Member Section Supporting Entities. To join EI, contact member-services@oasis-open.org.

Sponsor-level members

• US Department of Defense (DoD)

Contributor-level members

• DHS Office of Cybersecurity and Communications (CS&C)
• EUMETNET
• Google
• IEM
• IJIS Institute
• Kaiser Permanente
• MDreieck S.A. de C.V.
• NOAA/National Weather Service
• Open Geospatial Consortium, Inc. (OGC)
• U.S. Department of Homeland Security