Encyclopedia · Biography

Josh Gruenbaum

Finance professional, former GSA commissioner and Board of Peace adviser

Background

Josh Gruenbaum earned JD and MBA degrees from New York University and worked at Moelis and KKR in finance.

Career and institutions

He served as Commissioner of the Federal Acquisition Service at the U.S. General Services Administration and as a senior adviser in the White House Office of Special Peace Missions.

Recent and documented role

The White House named Gruenbaum to its Board of Peace senior-adviser team in January 2026. A November 2026 Princeton biography states he had joined Valor as managing director in 2026 and continued as Board of Peace senior adviser; this more recent account supersedes older pages describing him as current GSA commissioner.

References

  1. https://spia.princeton.edu/events/peacemaker-conversation-josh-gruenbaum-senior-advisor-board-peace
  2. https://www.whitehouse.gov/briefings-statements/2026/01/statement-on-president-trumps-comprehensive-plan-to-end-the-gaza-conflict/

Where this subject appears in The Story

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Documented connections

These are specifically described relationships in public records. A shared institution, appointment or event does not by itself demonstrate coordination or wrongdoing.

  • Aryeh Lightstone (person) — jointly designated senior advisers to Board of Peace · January 2026
  • Board of Peace (organization) — Chair, executive appointment, senior advisory or adjacent formal governance role as specified in White House statement · January 2026
  • Jared Kushner (person) — Board of Peace senior adviser and executive member · January 2026
  • Steve Witkoff (person) — Board of Peace senior adviser and executive member · January 2026