National Science FoundationIssuing agency·Alexandria, VA·via the SAM.gov Get Opportunities APINSF amended this solicitation on June 23, 2026. Section 6.1.1 has been updated. No other changes were made.
The U.S. National Science Foundation (NSF), Directorate for Technology, Innovation and Partnerships (TIP), announces the NSF X-Labs Other Transaction Agreement Solutions Offering (OTASO).
The NSF X-Labs initiative is a flexible, outcomes-driven effort to build and accelerate novel platform technologies capable of unlocking new sectors, advancing use-inspired scientific breakthroughs, and supporting U.S. leadership in science and technology. Through this OTASO, NSF is soliciting proposals from domestic responsible entities capable of establishing full-time, interdisciplinary R&D teams with the operational autonomy, technical expertise, and organizational flexibility necessary to pursue ambitious missions aligned with NSF X-Labs Topic Announcements.
NSF anticipates making one or more Other Transaction (OT) contract awards.
This OTASO is not a FAR-based procurement contract solicitation and is not a financial assistance opportunity. NSF will evaluate submissions in accordance with the procedures and criteria set forth in the OTASO and any applicable Topic Announcement.
This posting shall not be construed as an obligation on the part of the Government. The Government is not obligated to make any award as a result of this notice. The Government will not pay for any information submitted or for any costs incurred in responding to this notice.
Any information received becomes the property of the Government and will not be returned to the submitter. Responses may also be subject to disclosure under the Freedom of Information Act (FOIA) or as otherwise required by law.
The NSF X-Labs initiative aims to build and accelerate novel platform technologies capable of unlocking new sectors and advancing use-inspired scientific breakthroughs. Teams will establish full-time, interdisciplinary R&D teams with operational autonomy to pursue ambitious missions aligned with NSF X-Labs Topic Announcements. The program includes a Phase 0 (9-12 months) for concept development, a Phase 1 (24-36 months) for mission execution, and potential Phase 2 renewal. Work is milestone-based with payments upon successful completion of deliverables. The place of performance is within the United States.
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A surety’s written statement that it expects to bond you up to a stated amount, subject to final underwriting. It’s what a GC or agency asks to see before they take your bid seriously — and the most common thing Propeller is asked for.
Source: SAM.gov (notice 95a79314b838428eabc74dc8a9507e3d), retrieved via the SAM.gov Get Opportunities API. View the official posting, and always confirm requirements and deadlines with the issuing agency.