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Keyport Infrastructure Security Support Services Solicitation

Issued by DEPT OF DEFENSE · DEPT OF THE NAVY · NAVSEA · NAVSEA WARFARE CENTER · NAVAL UNDERSEA WARFARE CENTER · via SAM.gov — US federal contract opportunities

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Published
11 Nov 2026
Closes
11 Dec 2026, 23:00 UTC
Reference
N0025327R3001
Location
United States
Sector
Construction & Infrastructure

At a glance

DEPT OF DEFENSE · DEPT OF THE NAVY · NAVSEA · NAVSEA WARFARE CENTER · NAVAL UNDERSEA WARFARE CENTER in United States has published a tender in construction & infrastructure: “Keyport Infrastructure Security Support Services Solicitation”. Submissions close on 11 December 2026, 30 days from today. Quote reference N0025327R3001 in any correspondence with the buyer. FreeTender has recorded 14 notices from this buyer since 2026, 3 of them currently open. There are 404 open construction & infrastructure notices in United States on FreeTender. Bids are submitted to the buyer through SAM.gov — US federal contract opportunities, not through FreeTender.

Key requirements

Taken from the notice by FreeTender. The tender document on the official portal is binding — check it, and any corrigendum, before you bid.

To bid on SAM.gov (US federal)

You need an active SAM.gov entity registration with a Unique Entity ID (UEI) to be awarded a federal contract. Check the set-aside and NAICS size standard before you respond.

Details

DEPT OF DEFENSE · DEPT OF THE NAVY · NAVSEA · NAVSEA WARFARE CENTER · NAVAL UNDERSEA WARFARE CENTER is soliciting Keyport Infrastructure Security Support Services Solicitation. Solicitation number N0025327R3001. Classified under NAICS 541330 — Engineering Services. Product/service code R499 — OTHER PROFESSIONAL SERVICES. Responses are due by 11 December 2026 23:00 UTC. Posted on SAM.gov, the US federal contract opportunities system; registration is required to bid.

*This Solicitation is for SEAPORT NXG MAC HOLDERS ONLY. No other offers will be considered. Seaport MAC Holders will need to register for PIEE accounts in order to submit offers.*Naval Undersea Warfare Center (NUWC) Division Keyport is soliciting a task order for Keyport Infrastructure Security Support Services (KISSS). This requirement supports the Infrastructure Services Division (Code 102) and the Security Division (Code 105).The scope of work includes, but is not limited to: Safety Compliance, Environmental Compliance, Facilities Engineering, Facilities Planning, Facilities Management, Facilities Maintenance, Security Operations Support, and Monitoring Support. The selected contractor will support Code 102 in its mission to plan, manage, and maintain NUWC Division Keyports safety, environmental, and facilities programs, while also providing security services under the direction of the Code 105 Security Office. The contemplated task order will be a Cost-Plus-Fixed-Fee (CPFF) under the SeaPort NxG allowing any small business company in SeaPort to propose. It will be awarded on a best value basis to the Government. A trade-off analysis will be carried out, taking into consideration technical capability, past performance, and cost/price. It will include a base period of twelve (12) months and may include up to four (4) option years. The solicitation is set aside for Seaport Small businesses. The applicable PSC code for this requirement is R499 and the applicable NAICS code is 541330. The task order is predicted to be awarded in November 2027 with a predicted start date of January 2028. The support services are currently being performed under SeaPort-NxG task order N0025322F3001 by McLaughlin Research Corporation.

Context for bidders

We hold 14 notices from DEPT OF DEFENSE · DEPT OF THE NAVY · NAVSEA · NAVSEA WARFARE CENTER · NAVAL UNDERSEA WARFARE CENTER, going back to September 2026 — 3 of them still open. They buy mostly in Construction & Infrastructure, Manufacturing & Supply and Electronics & Semiconductors. There are 404 open Construction & Infrastructure tenders in United States. This one closes in 30 days.

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.
Common bidding mistakes to avoid →Writing a winning proposal

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