Executive Appointments & Leadership Moves   Defense Industry & Major Contractors   Commercial Space Industry (New Space)   Space Defense & Militarization  

Sierra Space names Dan Jablonsky, former Ursa Major CEO, as permanent chief executive

Sierra Space appointed Dan Jablonsky as chief executive officer effective March 2, 2026. Jablonsky, who led propulsion firm Ursa Major, becomes Sierra Space’s first permanent CEO in more than a year as the company prepares for its next phase of growth in defense-focused space work.

Discovered 2026-02-26T05:00:36.124837-08:00 | 2026-02-26T05:00:36.124837-08:00

Briefing

What Hype is tracking

  • Ends a leadership gap: Jablonsky is Sierra Space’s first permanent CEO in more than a year, effective March 2, 2026.
  • Executive background matters: he joins from Ursa Major, bringing propulsion and supplier leadership experience relevant to Sierra Space’s technical and industrial activities.
  • Company direction: Sierra Space frames the hire as part of preparing for its next phase of growth across national missions and security-in-space work.

Reported By

aeromorning.com govconwire.com actualidadaeroespacial.com Business Wire Aviation Week sierraspace.com
Sources Tracked
8
First Seen
2026-02-26T05:00:36.124837-08:00
Latest Update
2026-02-27T22:11:26.761684-08:00
Coverage
Space

Sources

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