Seaport NxG - Tactical Data Link (TDL) Capabilities Based In-Service Engineering Agent (CB-ISEA)

Closed — responses were due 20 Jul 2026 · Small Business Set Aside - Total · Department of the Navy, DoD · NAICS 541330 · Solicitation N6600126R3505

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This solicitation has closed — responses were due 20 July 2026.

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Solicitation details

Solicitation number	N6600126R3505
Notice ID	a6e54cc97b9b4c528dc3cb9718935372
Agency	Department of Defense (DoD)
Sub-agency	Department of the Navy
Contracting office	NIWC PACIFIC
NAICS code	541330 — Engineering Services
Product / service code (PSC)	L059
Set-aside	Small Business Set Aside - Total
Notice type	Solicitation
Posted	15 July 2026
Response deadline	20 July 2026 (closed)

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Description

15 JULY 2026 - Questions and Answers and Amendment 0002 posted in Update Number 0004. Same documents posted in Update Number 0005 in order to update description. / 14 JULY 2026 - Updated Questions and Answers posted. Amendment to follow. / 02 JULY 2026 - Questions and Answers and Amendment posted. ***This requirement is for SEAPORT NXG MAC HOLDERS ONLY and will be competed via Small Business Set Aside. No other offers will be considered. SeaPort MAC holders will need to register for PIEE accounts in order to receive solicitations and submit proposals/offers.*** The Department of the Navy, Naval Information Warfare Center (NIWC) Pacific, Codes 41160, Tactical Data Links Command and Control, and 41140, Tactical Data Links Monitoring Systems, have a requirement to provide life-cycle engineering and technical assistance required for Tactical and Communications Data Link systems and related equipment in the sustentation of the Tactical and Communications Data Links Capabilities Based In-Service Engineering Agent (CB-ISEA). The NAICS code for this procurement is 541330 with a size standard of $47 (millions of dollars). *Note: The deadline for submission of questions is 26 June 2026 at 14:00 PDT. The proposal deadline is 20 July 2026 at 14:00 PDT.

Version history

SAM.gov has posted 6 notices under solicitation N6600126R3505, oldest first.

15 June 2026 — Solicitation
02 July 2026 — Solicitation
02 July 2026 — Solicitation
14 July 2026 — Solicitation
15 July 2026 — Solicitation
15 July 2026 — Solicitation (this page)

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Market context: DoD and NAICS 541330

About the buyer and the industry, not this specific solicitation. Source: USASpending.gov award data, updated nightly.

In fiscal year 2026, DoD obligated $8.7B across 3,568 contract actions under NAICS 541330.
4,476 contracts worth $47.0B in this category end within the next 18 months.

DoD contracts under NAICS 541330 →

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