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NSF 23-579: Research Training Groups in the Mathematical Sciences

Closed Closed Opportunity NSF 23-579

This grant is closed. A newer notice from the same program is open now: Major Research Instrumentation Program: (MRI) (NSF 27-500). Status: Closes January 29, 2027 (83 days left). It is in our archive of U.S. National Science Foundation notices from 2025.

U.S. National Science Foundation offered grants of up to $500,000 (at least $400,000) to the applicants described in the notice. It expected to make about 10 awards worth $12.0 million in total. It is no longer open on Grants.gov.

From the official notice on Grants.gov, last changed June 7, 2025. Checked November 7, 2026.

Other notices with this title

U.S. National Science Foundation has posted this title under other numbers: earlier or later rounds, or the same competition for another area. Each has its own dates and may change its rules.

NoticePostedDeadlineStatus
NSF 20-608June 6, 2025ClosedClosed
NSF 24-570May 3, 2024Closed August 11, 2026Closed

Key dates

PostedJune 6, 2025
Archived by Grants.govJune 7, 2025

Who can apply

This opportunity was open to the applicants described in the notice.

*Who May Submit Proposals: Proposals may only be submitted by the following: -Institutions of Higher Education (IHEs): Two- and four-year IHEs (including community colleges) accredited in, and having a campus located in the US, acting on behalf of their faculty members. Special Instructions for International Branch Campuses of US IHEs: If the proposal includes funding to be provided to an international branch campus of a US institution of higher education (including through use of sub-awards and consultant arrangements), the proposer must explain the benefit(s) to the project of performance at the international branch campus, and justify why the project activities cannot be performed at the US campus. *Who May Serve as PI: Eligible Participants: Participating undergraduates, graduate students, and postdoctoral associates supported with NSF funds in RTG must be citizens, nationals, or permanent residents of the United Statesor its territories and possessions. No citizenship requirement applies to Principal Investigators.

Is this a realistic fit?

What the grant funds

The long-range goal of the Research Training Groups in the Mathematical Sciences (RTG) program is to strengthen the nation's scientific competitiveness by increasing the number of well-prepared U.S. citizens, nationals, and permanent residents who pursue careers in the mathematical sciences, be they in academia, government, or industry. The RTG program supports efforts to improve research training by involving undergraduate students, graduate students, postdoctoral associates, and faculty members in structured research groups pursuing coherent research programs. Research groups supported by RTG must include vertically-integrated activities that span the entire spectrum of educational levels from undergraduates through postdoctoral associates.

Category: Science and Technology and other Research and Development.

Who has won Mathematical and Physical Sciences grants before

From fiscal 2021 to 2025, Mathematical and Physical Sciences (47.049) awarded $8.5 billion across 14,898 grant awards, an average of $568,976 per award.

Largest recipients, fiscal 2021 to 2025
RecipientStateAwardsAmount
Association of Universities for Research in Astronomy, Inc.Arizona22$725 million
Associated Universities IncVirginia18$646 million
California Institute of TechnologyCalifornia148$316 million
Cornell UniversityNew York179$256 million
Florida State UniversityFlorida92$228 million

Top states: California ($1.2 billion), Arizona ($814 million), Virginia ($777 million), New York ($719 million), Illinois ($475 million).

Applying now

This notice no longer takes applications. Apply under the newer notice, NSF 27-500, which is open now.

The notice on Grants.gov keeps its full text and attachments, which is useful for planning a resubmission.

Questions people ask

Is NSF 23-579 still open?

No. It is no longer open on Grants.gov. A newer notice is open: NSF 27-500, closes January 29, 2027 (83 days left).

Who can apply for Research Training Groups in the Mathematical Sciences?

U.S. National Science Foundation accepted applications from the applicants described in the notice. The notice adds further conditions, so read its eligibility section.

What is the deadline for Research Training Groups in the Mathematical Sciences?

Closed. Applications are no longer accepted; the program's newer notices are on this page when there are any.

How much funding is available?

Awards of up to $500,000 each. About $12.0 million in total across about 10 awards.

Who has won Mathematical and Physical Sciences grants before?

The largest recipients over five fiscal years were Association of Universities for Research in Astronomy, Inc., Associated Universities Inc, California Institute of Technology. The program made 14,898 awards worth $8.5 billion in that time.

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