Federal Labs and Agencies
- Army Research Lab
- Energy Sciences Network (ESnet)/U.S. Department of Energy
- Laboratory for Telecommunications Sciences
- Library of Congress
- NASA Goddard Space Flight Center
- National Archives and Records Administration (NARA)
- National Institutes of Health (NIH)
- National Institute of Standards and Technology (NIST)
- National Library of Medicine (NLM)
- National Oceanic and Atmospheric Administration (NOAA)
- National Science Foundation (NSF)
- Space Telescope Science Institute (STSI)
- U.S. Department of State (through GWU)
- U.S. Department of Transportation (Federal Highway Administration)
Corporate and Non-Profit
- Fairfax County Government (through Columbia Telecommunications Corporation)
- Howard Hughes Medical Institute
- J. Craig Venter Institute
- Northrop Grumman Corporation
Higher Education
- American University
- Baltimore Education & Research Network
- Catholic University
- Gallaudet University
- GEANT / DANTE
- Georgetown University
- George Washington University
- Internet2, D.C. Office / University Consortium for Advanced Internet Development (UCAID )
- Johns Hopkins University
- Johns Hopkins University – Applied Physics Laboratory (JHU-APL)
- Johns Hopkins University Medical Institutions
- Network Virginia (aggregating the state of Virginia)
- University of Maryland, Baltimore
- University of Maryland, Baltimore County
- University of Maryland, College Park
- University of Maryland, University College
- University System of Maryland Network (aggregating 11 campuses)
- University of Southern California, Information Sciences Institute – East
- Washington Research Library Consortium
Current MAX Grantors
- National Science Foundation (NSF)
- National Oceanic and Atmospheric Administration (NOAA)
- BBN Technologies
- Defense Threat Reduction Agency (DTRA) via the University of New Mexico
- U.S. Department of Energy
