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Mary Guenther

Head of Space Policy

Mary Guenther is the Head of Space Policy at the Progressive Policy Institute. In this role, Mary focuses on evaluating and developing policy solutions that address how the United States government’s relationship with space actors should evolve and how to best harness the benefits of space for people here on Earth.

Prior to joining PPI, Mary served as the Vice President of Space Policy at the Commercial Space Federation (CSF). In that role, Mary drove consensus on space policy issues amongst roughly 90 member companies representing various facets of the commercial space economy and engaged with lawmakers, executive agencies, and the public to get those policy solutions implemented. 

Prior to CSF, Mary served as a Professional Staff Member at the United States Senate Committee on Commerce, Science, and Transportation focusing on space, science, emerging technology, cybersecurity, and manufacturing policy. In that role, she worked with colleagues to author and pass through the Senate the CHIPS and Science Act as well as a variety of smaller pieces of legislation.

Recent Work

Press Release  |  November 3, 2025

PPI Warns EU Space Act Could Stall Innovation and Raise Costs Across the Space Industry

  • Mary Guenther
Publication  |  November 3, 2025

Progressive Policy Institute’s Filing with the European Commission Regarding the EU Space Act

  • Mary Guenther
In the News  |  October 21, 2025

Guenther on CSPAN: Reviving U.S. Space Exploration

  • Mary Guenther
Press Release  |  August 1, 2025

New PPI Report Warns that the U.S. Rocket Launch Market is Heading Toward a Monopoly

  • Mary Guenther
Publication  |  July 31, 2025

Reigniting Rocket Competition: The Case for Refocusing on Domestic Competition in the Launch Sector

  • Mary Guenther
Press Release  |  July 28, 2025

PPI Calls on FCC to Update Satellite Rules for Faster, Cheaper Internet

  • Mary Guenther
Op-Ed  |  July 24, 2025

Guenther for Florida Today: When will NASA get a permanent leader and why is it taking so long?

  • Mary Guenther
Op-Ed  |  July 15, 2025

Guenther for The Hill: Houston, We Have a Problem: Scrapping the Space Station Harms the U.S.

  • Mary Guenther
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