When is the response deadline for N0013527R6276?

Responses are due Nov 6, 2026. Always confirm the date and time zone in the notice on SAM.gov, since agencies sometimes extend deadlines with an amendment.

Who can respond to SSN(X) Concept Design Expression of Interest?

No set-aside is listed, so any responsible business registered in SAM.gov can respond, large or small. Registration is free.

Who usually wins engineering government contracts?

Under NAICS 541330, the largest federal contractors from FY2024 to FY2026 were Electric Boat Corporation ($18.3B), Booz Allen Hamilton Inc ($5.4B), Science Applications International Corporation ($3.9B).

SSN(X) Concept Design Expression of Interest

Closing soon

Presolicitation · Dept of Defense · Responses due Nov 6, 2026

SSN(X) Concept Design Expression of Interest is a presolicitation notice posted on SAM.gov by Dept of Defense (Navsea HQ) on Oct 30, 2026, under NAICS 541330 (Engineering Services). No small business set-aside is listed. The work is to be performed in District of Columbia. Responses are due Nov 6, 2026.

Notice type: Presolicitation
Agency: Dept of Defense
Office: Dept of the Navy / Navsea / Navsea HQ / Navsea HQ
Solicitation number: N0013527R6276
Industry (NAICS): 541330 Engineering Services
Set-aside: No Set aside used
Place of performance: District of Columbia
Posted: Oct 30, 2026
Responses due: Nov 6, 2026 (4 days left)

The full description, attachments and response instructions are on SAM.gov: read this notice on SAM.gov. To respond you need an active SAM.gov registration, which is free.

What this presolicitation means

A presolicitation notice announces that a solicitation (an RFP, RFQ or IFB) is coming. It gives you time to read the requirement, find teaming partners and prepare before the clock starts.

Read the notice and any attachments on SAM.gov.
Note the expected solicitation date, the NAICS code and any set-aside.
Line up teaming partners and past performance examples now.
Watch SAM.gov (and this page's similar bids) for the solicitation itself.

Who wins engineering government contracts

Federal agencies obligated $149B on contracts under NAICS 541330 from FY2024 to FY2026, including $45.1B in FY2026. The largest contractors in this industry, possible competitors or teaming partners for this bid:

Electric Boat Corporation: $18.3B
Booz Allen Hamilton Inc: $5.4B
Science Applications International Corporation: $3.9B
Bae Systems Technology Solutions & Services Inc.: $2.6B
CACI, Inc. - Federal: $2.2B

Recent engineering contract awards

Recent contract awards under NAICS 541330
Start date	Recipient	Agency and description	Amount	Record
Sep 30, 2026	Absg Consulting Inc	Department of TransportationPROFESSIONAL SERVICES	$855,811	693JK326F00031N
Sep 30, 2026	Security & Energy Technologies Corporation	General Services AdministrationPHYSICAL ACCESS CONTROL AND SURVEILLANCE PACSS	$70,200	47QACA26F0535
Sep 30, 2026	Scientific Research Corporation	Department of StateTHE CONTRACTOR SHALL PROVIDE THIRD PARTY CONTRACTING (TPC) SERVICES IN SUPPORT OF THE DURBAN LEASE-FIT-OUT PROJECT	$666,966	19AQMM26F0486
Sep 30, 2026	Mayvin, Inc.	Department of Homeland SecurityTHE REQUIREMENT IS FOR THE CONTINUED PROVISION OF ADVISORY AND ASSISTANCE SERVICES TO SUPPORT THE FEMA CBRN OPERATIONS SUPPORT OFFICE MISSION.	$8,026,816	70FA9026F00000001
Sep 30, 2026	Kodiak Electric Association, Inc.	Department of DefenseINSTALLATION OF ENERGY CONSERVATION MEASURES FOR UESC	$2,000,000	SP060426C8000

More: government engineering contracts · NAICS 541330

DoD contract spending

The Department of Defense obligated $1.3T on contracts from FY2024 to FY2026. Its largest contractors were Lockheed Martin Corporation, Electric Boat Corporation, Lockheed Martin Corporation. What it buys most: aircraft manufacturing, engineering services, research and development in the physical, engineering, and life sciences (except nanotechnology and biotechnology).

See Department of Defense contracts: top contractors, what it buys and recent awards.

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Guides for this bid

Frequently asked questions

When is the response deadline for N0013527R6276?: Responses are due Nov 6, 2026. Always confirm the date and time zone in the notice on SAM.gov, since agencies sometimes extend deadlines with an amendment.
Who can respond to SSN(X) Concept Design Expression of Interest?: No set-aside is listed, so any responsible business registered in SAM.gov can respond, large or small. Registration is free.
Who usually wins engineering government contracts?: Under NAICS 541330, the largest federal contractors from FY2024 to FY2026 were Electric Boat Corporation ($18.3B), Booz Allen Hamilton Inc ($5.4B), Science Applications International Corporation ($3.9B).

Source: SAM.gov Contract Opportunities, last checked Nov 1, 2026. Independent website. Not affiliated with any government agency.