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NAICS 54171

Browse recent opportunities tied to this NAICS code. Open any notice to view details, attachments, and the direct SAM.gov link.

Updated Jan 30, 2026Page 9
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Department of Defense

Ocean Explorer (OEX) Large Underwater Vehicle Demonstrator

Amendment 006 - Posted 30 January 2026 (Please see updated attachments) Amendment 005 - Posted 22 December 2025 (Please see updated attachments) Amendment 004 - Posted 26 September 2025 (Please see updated attachment) Amendment 003 - Posted 20 Aug 2025 (Please see…

Posted: Jan 30, 2026Due: Jan 30, 2026Closed
NASA

HYDROSPHERE, BIOSPHERE, & GEOPHYSICS (HBG) SUPPORT SERVICES II - Submitted Questions and Answers

These questions and answers are in response to the draft RFP issued on April 8, 2026, which was subsequently paused. This serves as notice that HBG II procurement activities have been reinstated. The final RFP is anticipated to be released in March…

Posted: Jan 30, 2026Due: Jan 30, 2026Closed
Department of Defense

Cost Estimating Modeling Data Analytics and Research (CEMDAR) RFI

The Air Force Cost Analysis Agency (AFCAA) has identified numerous gaps in the databases, methods, and tools it regularly uses for cost estimating and analysis and has committed to improving the efficiency and effectiveness of its cost estimating capabilities. This requirement invests…

Posted: Jan 30, 2026Due: Feb 17, 2026Closed
Department of Health and Human Services

BIOmolecular Grammar for protein Aggregation Modulation and Intervention (BIOGAMI) Proposers' Day

This Special Notice (SN) alerts the scientific community to a newly approved ARPA-H program and notifies potential proposers of an associated Proposers’ Day. See attached BIOGAMI_SN_ARPA-H-SN-26-147 for further details.

Posted: Jan 30, 2026Due: Feb 19, 2026Closed
Department of Defense

RFI - Commercial Solutions Opening: Tactical Oceanography Supporting Full-Spectrum Undersea Warfare

Amendment 0003 "Amendment 0003 -All Q and A" is added as an attachment on 30-FEB-2026 and contains the entire series of questions received to date. If you are unable to view/download this attachment, please request via email at julianna.b.ricci.civ@us.navy.mil. Amendment 0002 "Amendment…

Posted: Jan 30, 2026Due: Feb 06, 2026Closed
NASA

Moon to Mars NextSTEP-3 Appendix B, Architecture Studies

You are invited to submit a proposal in response to the National Aeronautics and Space Administration (NASA) George C. Marshall Space Flight Center’s (MSFC) Next Space Technologies for Exploration Partnerships-3 (NextSTEP-3) Broad Agency Announcement, Appendix B, Moon to Mars Architectural Studies. This…

Posted: Jan 30, 2026Due: Feb 20, 2026Closed
Department of Health and Human Services

Radiological or Nuclear Medical Countermeasure Product Development Support (PDS)

Introduction This is a Small Business Sources Sought notice. This is NOT a solicitation for proposals, proposal abstracts, or quotations. The purpose of this notice is to obtain information regarding: (1) the availability and capability of qualified small business sources; (2) whether…

Posted: Jan 30, 2026Due: Feb 17, 2026Closed
NASA

Moon to Mars NextSTEP-3 Appendix B, Architecture Studies

The purpose of today's update is to provide the list of attendees and PowerPoint Presentation from the NextSTEP-3: Moon to Mars Architectural Studies Industry Day Hybrid Industry Day held on January 22, 2026. The recording can be found at the following: nasa.gov/wp-content/uploads/2026/01/app-b-industry-day-20260122-final.mp4…

Posted: Jan 30, 2026Due: Jan 15, 2026Closed
Department of Health and Human Services

BIOmolecular Grammar for protein Aggregation Modulation and Intervention (BIOGAMI)

The Advanced Research Projects Agency for Health (ARPA-H) is posting this Innovative Solutions Opening (ISO) in support of the BIOmolecular Grammar for protein Aggregation Modulation and Intervention (BIOGAMI) Program. ARPA-H anticipates that multiple Other Transaction (OT) Agreements will result from this announcement.…

Posted: Jan 30, 2026Due: Apr 15, 2026Due in 51d
Department of Defense

Carbon Crunch

Carbon Crunch aims to enable scalable, fast, and agile production of hypersonic aeroshells. The program will focus on accelerating carbon-carbon (C-C) hypersonic aeroshell production by developing and applying cutting-edge composite manufacturing methods that are inherently faster and more scalable. Performers will be…

Posted: Jan 30, 2026Due: Mar 03, 2026Due in 8d
NASA

Science Transport & Robotic Innovation for Deployment and Exploration (STRIDE) Program in NASA Research Announcement (NRA): RESEARCH OPPORTUNITIES IN SPACE AND EARTH SCIENCES (ROSES) 2025

SAM Notice Amendment #1 : NASA has decided to solicit STRIDE proposals and changed the Response Date. A) Visit and download the full, final text available from the new URL added under Links. B) Open and read carefully the new attachment called…

Posted: Jan 30, 2026Due: Apr 01, 2026Due in 37d
Department of Defense

Army Reprogramming Analysis Team (ARAT) Research & Development Effort

***Amendment 1, dated 29 JAN 2026, has been posted to provide a Question & Answer document. Please see the attachments section*** The requirement is for the US ARMY Communication Electronics Command (CECOM) Army Software & Innovation Center (ASIC) Army Reprogramming and Analysis…

Posted: Jan 29, 2026Due: Feb 10, 2026Closed

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