# HII Sole Source Notification

Canonical: https://abierto.us/opportunities/sdasn270004

- Solicitation number: SDA-SN-27-0004
- Notice type: Special notice
- Status: Closed. Deadline was November 20, 2026 at 12:00 PM EST
- Department: Department of Defense
- Agency: Department of the Air Force
- Contracting office: Space Development Agency (n-SPACEDEVELOPMENTAGENCY)
- NAICS: 541330 Engineering Services
- Product or service code: R425 Engineering and Technical Services
- Place of performance: Chantilly, Virginia
- County: Fairfax County (FIPS 51059). https://abierto.us/counties/fairfax-county-va-51059
- City: Chantilly. https://abierto.us/cities/chantilly-va-5114744
- First posted: November 5, 2026
- Last posted: November 5, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/db790b6f4f1a49298bc64e900d5f45e0/view

## Description

The Space Development Agency (SDA) intends to issue a sole-source, firm-fixed-price (FFP) contract to Huntington Ingalls Industries (HII) by January 2027. This award will enable HII to continue its highly specialized and unique combination of technical expertise, continuous process experience, and proprietary institutional knowledge of SDA constellation systems, space-vehicle architectures, and partner agency systems.

This award will be made under the authority of FAR 6.302-1, Only One Responsible Source and No Other Supplies or Services Will Satisfy Agency Requirements, 10 U.S.C. 3204 (a)(1). This is NOT a request for competitive proposals and is published for informational purposes only. Questions or comments related to this Notice of Intent shall be directed to ussf.pentagon.sda.mbx.SN-27-0004@mail.mil (phone calls/voicemails will not be accepted and will not receive a response). Please indicate in the subject of your email: Notice of Intent to Sole Source – SDA-SN-27-0004.

## Open now in the same industry

91 open in NAICS 541330.

- TSA DTSS and TSII Re-Competition (TSA25-04-0641), due November 6, 2026 at 10:00 AM EST. https://abierto.us/opportunities/tsa25040641
- Worldwide AE Support Services (19AQMM26R0258), due November 10, 2026 at 1:00 PM EST. https://abierto.us/opportunities/19aqmm26r0258
- Cost Engineering and Related Services (N6247027R0007), due November 10, 2026 at 2:00 PM EST. https://abierto.us/opportunities/n6247027r0007

## Publications

- November 5, 2026: Special notice, due November 20, 2026 at 12:00 PM EST. Notice db790b6f4f1a49298bc64e900d5f45e0. https://sam.gov/workspace/contract/opp/db790b6f4f1a49298bc64e900d5f45e0/view

## Points of contact

- SDA - HII Sole Source Notification, ussf.pentagon.sda.mbx.SN-27-0004@mail.mil

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/sdasn270004.