U.S. National Science Foundation (NSF) X-Labs Initiative

The U.S. National Science Foundation (NSF) Directorate for Technology, Innovation and Partnerships is soliciting proposals for the X-Labs Other Transaction Agreement Solutions Offering (OTASO). This initiative aims to establish interdisciplinary, domestic R&D teams with the operational autonomy and technical expertise required to develop novel platform technologies that advance U.S. leadership in science and technology. Unlike traditional FAR-based procurements, this program utilizes Other Transaction (OT) contracts pursuant to 42 U.S.C 19116, emphasizing flexibility and outcomes-driven results. Eligible domestic entities must be registered in SAM.gov and are expected to form teams capable of maintaining significant focus on ambitious missions aligned with NSF X-Labs Topic Announcements. The program is structured in a phased, milestone-based funding model. Phase 0 lasts 9 to 12 months with funding up to 1.5 million dollars for preparation and alignment. Successful teams may progress to Phase 1, which lasts 24 to 36 months with potential funding up to 50 million dollars per year. Further renewals for Phase 2 and Phase 3 may be granted based on performance and national interest. Awards are issued as fixed-price payments triggered by the successful completion of quantitative, verifiable progress milestones and quarterly reporting. Evaluation is a two-step process beginning with a written proposal limited to eight pages and a mandatory Conflict of Interest statement governed by FAR Subpart 9.5. Selected teams will then provide an Oral Proposal Package and presentation. Selection criteria are weighted roughly equally between team qualifications and structure—including an Autonomy Factor Assessment of leadership and decision-making—and mission clarity and outcomes. All work must be performed within the United States.