On 1 June 2005, The National Aeronautics and Space Administration selected Juno as the second mission in its New Frontiers Program. The selection was announced after an extensive, competitive review in the two-step competition. The mission is being carried out with the following institutional partners.

Southwest Research Institute (SwRI)

Dr. Scott Bolton, Principal Investigator for the Juno mission is based at the Southwest Research Institute's headquarters in San Antonio, Texas. He leads the large international team of Juno scientists who developed the scientific goals and implementation strategy for the mission. SwRI will conduct mission operations, and will manage the scientific team participation. SwRI is providing two instruments for Juno; the Ultraviolet Imaging Spectrometer and the Jupiter Auroral Distributions Experiment.

Jet Propulsion Laboratory (JPL)

Juno is managed by the Jet Propulsion Laboratory and also provides scientific, space communications and space navigation support for the mission. JPL is also fabricating the Microwave Radiometer, the Scalar Helium Magnetometer, and provides the X-Band portion for the Gravity Science experiment. JPL also provides the X-Band telecommunications subsystem. In addition, JPL provides the scientific support for the Goldstone Apple Valley Radio Telescope (GAVRT), managed by the Lewis Center for Educational Research, a partner for the Juno Education and Public Outreach Program.

Lockheed Martin (LMCO)

The Juno spacecraft is being assembled by Lockheed Martin and will be launched on an Atlas V rocket, that is also being procured from Lockheed Martin.

Goddard Space Flight Center / NASA

GSFC will provide the Flux Gate Magnetometer for the Magnetic Field and Gravity Field investigations.

Applied Physics Laboratory (APL)
-- Johns Hopkins University

APL is providing the Jupiter Energetic-particle Detector Instrument (JEDI) for Juno.

Agenzia Spaziale Italiana (ASI)
-- Italian Space Agency

ASI is providing the Jovian Infrared Auroral Mapper (JIRAM) instrument and Ka-Band Translator (KaT) which is the Ka-Band portion of the Gravity Science experiment.

Malin Space Science Systems (MSSS)

MSSS is providing JunoCAM, a camera for Education and Public Outreach.

Danish Technical University (DTU), Denmark

The Advanced Stellar Compass (ASC) for providing accurate Juno spacecraft pointing needed for the magnetic and gravity field investigations is being fabricated by DTU.

University of Iowa

The WAVES instrument is being provided by the University of Iowa.

University of Wisconsin - Madison

The Juno Education and Public Outreach program is directed from the Space Science and Engineering Center at the University of Wisconsin in Madison, Wisconsin.