Request for Proposals for Modeling, Simulation, Engineering, Analysis, and Tactics (MSEAT)
Dept of Defense · DEPT OF THE NAVY
This notice is not accepting responses (deadline was Jan 25, 2026, 7:00 PM EST).
Page kept for research and related open opportunities below. For current work in this category, use the related notices or browse hubs.
- Response deadline
- Jan 25, 2026, 7:00 PM EST
- Posted
- Jan 21, 2026
- Solicitation
- N6133126R3105
- Set-aside
- Total Small Business
- Place of performance
- —
- Contracting office
- NAVAL SURFACE WARFARE CENTER · PANAMA CITY BEACH · FL
- Source
- SAM.gov · updated May 9, 2026
Description
***ONLY SEAPORT MAC HOLDERS are eligible for award under this solicitation.*** Request for Proposal (RFP) under the Seaport NxG Multiple Award Contract (MAC), number N6133126R3105 for Modeling, Simulation, Engineering, Analysis, and Tactics (MSEAT). This RFP will also be posted within the Seaport NxG Opportunities Page. This effort has been previously been posted within the Seaport NxG portal under the Opportunities page as the following: Source Sought Notice N61331-25-SN-Q38, dated 7/11/2025 and the follow-up Advance Planning Notice/Pre-Solicitation Notice dated 11/7/2025. Previous references this potential solicitation as number N6133126R3006. *** RESPONSES MUST BE SUBMITTED VIA THE PIEE SOLICITATION MODULE.*** PLEASE UTILIZE THE DOCUMENTS FOUND WITHIN THE SEAPORT NxG ANNOUCEMENT, Opportunity - Modeling, Simulation, Engineering, Analysis, and Tactics (MSEAT) RFP N6133126R3105. Opportunity Type: Other. *** PLEASE REFER TO THE AMENDMENT LOG FOUND WITHIN THE SEAPORT ANNOUNCEMENT FOR UPDATES TO THE RFP.**** * Amendment 0001 - 1/9/2026 The purpose of this amendment is to: 1. Incorporate omitted attachments J.11 Labor Rate Workbook and J.12 GFP List to the solicitation in the PIEE Solicitation Module. 2. Amend Section L, paragraph 3.2, to change the past performance evaluation period from three years to five years preceding the release of the solicitation to ensure consistency with the criteria outlined in Section M, Factor 2. 3. Replace Section J Attachment J.4 Cost Summary Format with Attachment J.4 Cost Proposal Spreadsheet. 4. Update verbiage in clauses L-215-H006 Submission of Questions by Offerors--Basic (NAVSEA) (APR2022) and L-216-H0001 Task Order General Information (NAVSEA) (JUL 2023) to support proposal submission in the PIEE Solicitation Module. 5. Update verbiage in Section L, 1.0 Instructions of Offers and Section L, Volume III, 3.3.1 - 3.3.3 to support proposal submission in the PIEE Solicitation Module. 6. Insert Volume IV, 3.4.2 Solicitation Fill-ins to provide additional instructions to offerors.
What similar awards have paid
Real federal awards already on the books in a similar lane — so you can size the opportunity, not guess. This is public history, not a bid price, cost estimate, or prediction that you will win.
Typical award size
$2.86M
Middle of the pack for similar past awards
Most similar awards fall between $563,603 and $9.11M
Who has won work like this
Public awardees in this lane — useful for competitor scan or teaming ideas, not a ranked list of “best” firms.
- 1SMARTRONIX, LLC2 awards$1.42B
- 2MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC.3 awards$904.44M
- 3THE MITRE CORPORATION1 award$636.70M
- 4NOBLIS, INC.8 awards$479.31M
- 5APPLIED RESEARCH ASSOCIATES, INC.1 award$402.34M
- 6BOWHEAD MISSION SOLUTIONS, LLC1 award$262.32M
- 7CACI, INC. - FEDERAL1 award$215.86M
- 8OBSIDIAN SOLUTIONS GROUP LLC1 award$176.42M
Recent examples
A few of the newest similar awards in our index.
- MAYVIN, INC.Sep 30, 2025Department of Homeland Security$158.97MSource
- AMENTUM SERVICES, INC.Sep 30, 2025Department of Homeland Security$11,933Source
- SCIENCE APPLICATIONS INTERNATIONAL CORPORATIONSep 30, 2025General Services Administration$149.51MSource
- CREDENCE DYNAMO SOLUTIONS LLCSep 30, 2025Department of Homeland Security$14.35MSource
- METIS FLIGHT RESEARCH ASSOCIATES, LLCSep 30, 2025National Aeronautics and Space Administration$18.47MSource
- MELE ASSOCIATES INCSep 30, 2025Department of Energy$97.43MSource
Drawn from official USAspending contract records in our index. Always confirm requirements on the SAM.gov notice before you bid.
Intelligence only — not legal advice or a guarantee of award. Always verify requirements on the official SAM.gov notice. Past award amounts are public history, not a suggested bid or prediction. Notice ID eb66daceca464396a003359d72e647df.