RFP Professional Engineering Services Support — Engineering and Technical Services
Issued by DEPT OF DEFENSE · DEPT OF THE NAVY · NAVFAC · NAVFAC PACIFIC CMD · NAVFAC NORTHWEST NW · NAVFACSYSCOM NORTHWEST · via SAM.gov — US federal contract opportunities
- Published
- 3 Sept 2026
- Closes
- 8 Sept 2026, 21:00 UTC
- Reference
- N4425526R31SP
- Location
- United States
- Sector
- Construction & Infrastructure
Details
DEPT OF DEFENSE · DEPT OF THE NAVY · NAVFAC · NAVFAC PACIFIC CMD · NAVFAC NORTHWEST NW · NAVFACSYSCOM NORTHWEST is soliciting RFP Professional Engineering Services Support — Engineering and Technical Services. Solicitation number N4425526R31SP. Classified under NAICS 541330 — Engineering Services. Product/service code R425 — ENGINEERING AND TECHNICAL SERVICES. Responses are due by 08 September 2026 21:00 UTC. Posted on SAM.gov, the US federal contract opportunities system; registration is required to bid.
The purpose of this amendment (Amendment 0001) is to:-Change the language of the opportunity from Seaport NXg rolling admissions ll N00178-24-R-7000 to current SeaPort NXg Small Business MAC holders with NAICS code 541330. -Extend the Proposal Due date from 8 September 2026 to 9 September 2026 12:00 PDT.
Context for bidders
We hold 2 notices from DEPT OF DEFENSE · DEPT OF THE NAVY · NAVFAC · NAVFAC PACIFIC CMD · NAVFAC NORTHWEST NW · NAVFACSYSCOM NORTHWEST, going back to September 2026 — 2 of them still open. There are 156 open Construction & Infrastructure tenders in United States. This one closes in 5 days.
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Before you bid on this tender
A quick checklist to help you decide whether to bid and prepare a compliant submission for this construction & infrastructure opportunity. Always verify the details on the official source.
- Confirm the exact closing date and time (and time zone) on the official portal — deadlines are strict and can be revised by a corrigendum.
- Read the full notice and every attached document, including the scope, specifications and any bill of quantities or terms of reference.
- Check the eligibility criteria — prior similar experience, annual turnover, certifications and registrations — and make sure you qualify before investing effort.
- Prepare any earnest-money deposit (EMD) or bid security and the required formats early; missing or wrongly-formatted documents are a common cause of rejection.
- Note how bids must be submitted (online or physical), in what format, and whether a digital signature or portal registration is required.
- Watch for corrigenda and clarifications right up to the deadline — requirements and dates can change.
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