The roles of organizations involved in the Outrigger Telescopes Project are listed below.

NASA
The Nation's space agency provides the project funding and overall guidance for the project.

The Jet Propulsion Laboratory (JPL), California Institute of Technology
This NASA research and development facility manages many of NASA's most productive missions of scientific exploration. JPL manages the project, provides technical expertise in interferometry, and develops key hardware and software components.

W.M. Keck Observatory, California Association for Research in Astronomy (CARA)
The Observatory operates the twin Keck 10-meter telescopes, the world's largest. The Keck Observatory manages the subcontract to fabricate the Outrigger Telescopes, and would operate the Outrigger interferometer on Mauna Kea.

University of Hawaii
The University of Hawaii, whose Institute for Astronomy is one of the world's leading astronomy research centers, holds the lease for the Mauna Kea Science Reserve. As the leaseholder, UH has applied on behalf of CARA for a Conservation District Use Permit for the project.

EOS Technologies, Inc.
This company specializes in fabricating telescopes of modest size, and is developing the Outrigger Telescopes. Their parent company, EOS, is developing the telescope domes and enclosures.

SAIC, Tetra Tech
These companies support NASA in the Environmental Impact Statement process.