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Software Infrastructure for Sustained Innovation

SoftwareInfrastructure for Sustained Innovation (SI2) is a long-term investment focused on realizing a portion of the Cyberinfrastructure Framework for 21st Century Science and Engineering (CIF21, http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=504730) vision and catalyzing new thinking, paradigms...

Grant (non-repayable) Intake closed; program continues (check for next intake)

Funder

National Science Foundation (listed as U.S. National Science Foundation)
Funder profile and all of its programs

Amount

$500,000 to $20,000,000 per award; $13,500,000 total program funding (estimated) (published on Grants.gov for the latest cycle).

Where

United States (federal)

Eligibility

Eligible applicant types are set out on the official page. No cost sharing is required. Recurring: posted in 4 different years; this cycle has closed, watch for the next one.

Sectors

Energy and clean tech, Research and science, Technology, software and R&D, Transportation and infrastructure

Deadline

Varies: check the official page for current dates

Source

Grants.gov XML extract (15-553)

Last checked

2 November 2026

Funder contacts

Public organizational contacts on file Unlock full profile / Sign up

Official page ↗

From official open data: listed in the official Grants.gov extract on 2026-11-02. The summary is from the official listing; the eligibility line is our plain-language reading of its eligibility codes. Confirm details on the official page.

Related grant lists

Energy and clean tech Research and science Technology, software and R&D Nonprofits and charities United States United States (national) Federal agency $1 million or more

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