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NSF SBIR/STTR Phase II Supplemental Funding Opportunities is a grant from National Science Foundation (NSF) that funds current Phase II awardees seeking additional resources to accelerate commercialization of their innovation research.
Supplement types include Phase IIB (up to $500,000 additional NSF funding matched with at least $100,000 in third-party funds), as well as other opportunities for partnerships, international expansion, and technology transfer. Eligible applicants must be active NSF SBIR or STTR Phase II awardees within their award period. Supplemental funding must be requested before the original award period ends.
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Supplemental funding overview | NSF SBIR Check recent critical alerts! (Last updated 12/22/2025) NSF has temporarily paused the submission of new Project Pitches to the SBIR/STTR programs due to the lapse in congressional authorization. Program Directors will continue to process Project Pitches that were previously received.
Please direct any questions to sbir@nsf. gov . NSF is committed to assisting Phase II awardee companies to successfully commercialize their innovation research, grow their company and create jobs by attracting new investments and partnerships.
To reinforce these commitments, the program supports a broad number of supplements and other opportunities. Please notify your program director of your intention to submit a supplemental funding request before preparing and submitting a proposal. You will not be eligible to apply for or receive supplemental funding after your original award period has ended.
A no-cost extension does not extend the eligibility period for supplements. (The one exception is for a TECP supplement .) View instructions for Proposal / Budget submissions .
Phase IIB: Catalyzing Additional Funding Pathways Extends the research and development efforts beyond the current grant to further accelerate commercialization of the Phase II project. Max funding: $500,000 new NSF funding per award, limited to 50% of qualified third-party funds. Requirements: Third-party commitments totaling at least $100,000.
Deadline: Must begin the financial package submission process within 23 months of the Phase II start date (or 29 months if TECP support has been awarded). The award of a Phase IIB supplement may extend the Phase II award by up to two years. Research Experiences for Teachers Funding support for active involvement of K-12 teachers and community college faculty in engineering research.
Max funding: $10,000 per teacher per year. Deadline: Rolling submission; does not extend award duration. Recruiting tip: Guidance counselors at your local middle and high schools may be a great help.
You can use this recruiting template to reach out. Research Experiences for Undergraduates Funding support for active NSF research participation by undergraduate students. Max funding: $8,000 per student per year.
Deadline: Rolling submission; does not extend award duration. Recruiting tip: The career center at your local community college or university may be a great help. You can use this recruiting template to reach out.
Small Business - Engineering Research Center Collaboration Opportunity Collaborative research opportunity to provide a beneficial research and commercialization platform between NSF SBIR/STTR companies with Engineering Research Center faculty, researchers and graduate students. Max funding: 20% of the Phase II award amount for no more than one year.
Technology Enhancement for Commercial Partnerships (TECP) Funding for additional research that goes beyond the Phase II project’s objectives to meet the technical specifications or additional proof-of-concept requirements. Additional research is anticipated to enhance the commercial potential and lead to partnerships with industrial partners and venture and angel investors. (A TECP award could extend your Phase II award period.)
Max funding: 20% of the Phase II award. Deadline: Within 18 months of the effective start date of the Phase II award.
Additional opportunities: NSF SBIR Innovative Postdoctoral Entrepreneurial Research Fellowship With funding support from NSF, the American Society for Engineering Education recruits, trains, mentors, places and funds early-career STEM doctorate recipients from underrepresented groups to participate in entrepreneurial activities and perform innovative research at NSF Phase II SBIR/STTR awardee companies.
Postdoctoral Fellowships are open to all fields in science and engineering funded by NSF within the current portfolio of active Phase II SBIR/STTR awardee companies. Appointments are for one year. The base stipend is $78,000 per year, plus optional individual health and life insurance, relocation and conference travel support, and professional development training in entrepreneurship.
Deadline: Bi-monthly starting May 8, 2019, until filled. American Institute for Manufacturing of Integrated Photonics Capabilities The American Institute for Manufacturing of Integrated Photonics (AIM) is a public-private partnership that focuses on the nation’s premiere capabilities and expertise to capture and mature critical manufacturing domestic capability for integrated photonics.
Research projects utilizing the AIM photonics fabrication process technologies via multi-project wafer (MPW) runs should have an objective to bring a specific innovation to integrated photonics circuits and components or to demonstrate a new approach that uses integrated photonics as its differentiator.
For proposals submitted to NSF and recommended for funding following merit review, the grantee’s cost of the chip may be discounted by 50% of the stated cost by AIM, based on available space on the MPW shuttle run. Test, assembly and packaging services may be discounted by 15% of the stated cost. Note that MPW shuttle runs at discounted rates are offered on a space-available basis only.
It is recommended that the grantee check with AIM Photonics for run scheduling well in advance of the design due date.
Based on current listing details, eligibility includes: NSF SBIR/STTR Phase II awardees. Applicants should confirm final requirements in the official notice before submission.
Current published award information indicates Varies Always verify allowable costs, matching requirements, and funding caps directly in the sponsor documentation.
The current target date is rolling deadlines or periodic funding windows. Build your timeline backwards from this date to cover registrations, approvals, attachments, and final submission checks.
Federal grant success rates typically range from 10-30%, varying by agency and program. Build a strong proposal with clear objectives, measurable outcomes, and a well-justified budget to improve your chances.
Requirements vary by sponsor, but typically include a project narrative, budget justification, organizational capability statement, and key personnel CVs. Check the official notice for the complete list of required attachments.
Yes — AI tools like Granted can help research funders, draft proposal sections, and check compliance. However, always review and customize AI-generated content to reflect your organization's unique strengths and the specific requirements of the solicitation.
Review timelines vary by funder. Federal agencies typically take 3-6 months from submission to award notification. Foundation grants may be faster, often 1-3 months. Check the program's timeline in the official solicitation for specific dates.
Many federal programs offer multi-year funding or allow competitive renewals. Check the official solicitation for continuation and renewal policies. Non-competing continuation applications are common for multi-year awards.
Fire Science Innovations through Research and Education (FIRE) program is sponsored by National Science Foundation (NSF). This program invites innovative multidisciplinary and multisector investigations focused on convergent research and education activities in wildland fire. It supports research that can inform risk management and response, adaptation, and resilience across infrastructures, communities, cultures, and natural environments. Relevant topics include developing novel materials and methods for retrofitting existing buildings and remediating buildings following wildfire and smoke events.
Smart Health and Biomedical Research in the Era of Artificial Intelligence and Advanced Data Science (SCH) is sponsored by National Science Foundation (NSF) & National Institutes of Health (NIH). This interagency program supports innovative, high-risk/high-reward research that leverages computer and information science, engineering, mathematical sciences, and biomedical, social, behavioral, and economic sciences to address pressing questions in biomedical and public health research. It seeks transformative advancements in developing novel methods to intelligently collect, sense, connect, analyze, and interpret data from individuals, devices, and systems to enable discovery and optimize health. Given the focus on AI and biomedical research, this could include AI medical imaging for cancer, though direct PhD scholarship for international students is not explicitly stated, it supports research that PhD students would conduct.
The purpose of this FOA is to provide funding for up to four (4) Tribal Colleges and Universities (TCUs) that will provide entrepreneurial development services to Native American communities, focusing on supplying services to socially and economically disadvantaged entrepreneurs in locations that are outside of the geographical areas of existing SBA resources. Eligible applicants must be Tribal Colleges and Universities as defined in the Higher Education Act HEA 316 (U.S.C. 1059c). Funding Opportunity Number: SB-GC7J-23-002. Assistance Listing: 59.007. Funding Instrument: G. Category: BC,ED. Award Amount: Up to $250K per award.
The purpose of this FOA is to provide funding for up to two (2) private, non-profit organizations that will provide entrepreneurial development services to women, with an emphasis on socially and economically disadvantaged entrepreneurs in locations that are outside of the geographical areas of existing WBCs for the District of Columbia (DC) and the State of Oregon. There will be one award for each location. Eligible applicants must be private, non-profit organizations with 501(c) tax exempt status from the U.S. Treasury’s Internal Revenue Service and must provide services to the District of Columbia (DC) and State of Oregon. Funding Opportunity Number: SB-OEDWB-23-002. Assistance Listing: 59.043. Funding Instrument: G. Category: BC,CD,RD. Award Amount: $75K – $150K per award.