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Closed Mon, Oct 5. Responses were due Wed, Jul 15 · 1:00 PM ET. This notice is kept for reference and no longer takes responses.

Request for proposalsFederal buyer

Electronic Security Systems (ESS) Sustainment

DEPT OF DEFENSE, South Carolina · DEPT OF THE NAVY · NIWC ATLANTIC
Verified 14 h agoAmended Jun 30
Responses dueWed, Jul 151:00 PM ET · South Carolina timeClosed
PostedTue, Jun 304 amendments, last Jul 20
Solicitation no.N65236-26-R-E026SAM.gov
Set-asideNoneOpen to all firms
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What the agency is buying

from the notice as published

***Naval Information Warfare Center (NIWC) Atlantic requires support for ESS Sustainment.*** ***This opportunity 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 receive solicitations and submit proposals/offers in response to the RFP.*** ***The contractors will be tasked to accomplish the work as…

How to get the bid documents

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Details

Place of performance
NORTH CHARLESTON, South Carolina
Buyer type
Federal
Notice type
Solicitation
Solicitation no.
N65236-26-R-E026
NAICS
NAICS 541330 (Engineering Services): 53 open RFPs
Size standard
$25.5M revenue SBA table, NAICS 541330
PSC
PSC K058 (MODIFICATION OF EQUIPMENT- COMMUNICATION, DETECTION, AND COHERENT RADIATION EQUIPMENT)
Amendments
4, last Jul 20
Contact
MELINDA ODENKIRK
Office
DEPT OF THE NAVY · NIWC ATLANTIC
Email
melinda.k.odenkirk.civ@us.navy.mil

Not stated in the notice: estimated value, contract type, period of performance, evaluation criteria, local-presence rule. Check the bid documents.

Contact details from the source notice. Contact the buyer only about this solicitation.

Key dates

Tue, Jun 30Posted
Not statedQuestions due
Jul 30 Wed, Jul 15 · 1:00 PM ETResponses due · closed
Amendment 1
Fri, Jul 10
Amendment 2
Wed, Jul 15
Amendment 3
Mon, Jul 20
Amendment 4
Mon, Jul 20
Closed
Mon, Oct 5

Change log

verified Thu, Oct 8 · 12:30 AM ET
  1. Posted · SolicitationTue, Jun 30 · 3:31 AM ET
  2. Amendment · New version of the notice posted at the sourceFri, Jul 10 · 5:46 AM ET
  3. Amendment · New version of the notice posted at the sourceWed, Jul 15 · 6:42 AM ET
  4. Deadline moved · Wed, Jul 15, 2026 · 1:00 PM ET → Mon, Jul 20, 2026 · 1:00 PM ETWed, Jul 15 · 6:42 AM ET
  5. Amendment · New version of the notice posted at the sourceMon, Jul 20 · 6:15 AM ET
  6. Amendment · New version of the notice posted at the sourceMon, Jul 20 · 6:57 AM ET
  7. Deadline moved · Mon, Jul 20, 2026 · 1:00 PM ET → Thu, Jul 30, 2026 · 1:00 PM ETMon, Jul 20 · 6:57 AM ET
  8. ClosedMon, Oct 5 · 6:35 AM ET
  9. Deadline moved · Thu, Jul 30, 2026 · 1:00 PM ET → Wed, Jul 15, 2026 · 1:00 PM ETWed, Oct 7 · 12:33 AM ET
  10. Deadline moved · Wed, Jul 15, 2026 · 1:00 PM ET → Thu, Jul 30, 2026 · 1:00 PM ETThu, Oct 8 · 12:32 AM ET
  11. Deadline moved · Thu, Jul 30, 2026 · 1:00 PM ET → Wed, Jul 15, 2026 · 1:00 PM ETThu, Oct 8 · 12:32 AM ET

Change log starts Oct 5, 2026 (tracking began); earlier amendments at SAM.gov are being pulled in.

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Notice as published

Electronic Security Systems (ESS) Sustainment

***Naval Information Warfare Center (NIWC) Atlantic requires support for ESS Sustainment.*** ***This opportunity 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 receive solicitations and submit proposals/offers in response to the RFP.*** ***The contractors will be tasked to accomplish the work as specified in the Performance Work Statement (PWS).

The PWS includes Controlled Unclassified Information (CUI) and will not be made publicly available. In order to obtain access to the PWS, the offeror shall download, complete, and submit a signed Non-Disclosure Agreement (NDA) for each individual requiring access to the non-public documents to Mindy Odenkirk, [email on the source notice].***

What this office paid before

USAspending.gov, last 36 months

18 awards matched · tier 1: this contracting office (N65236) + PSC K058. Most recent:

  • Jun 25, 2026FATHOM 4 LLCNIWC ATLANTIC USMC INTELLIGENCE ENGINEERING SUSTAINMENT CYBER SUPPORTN6523626FE270 · DELIVERY ORDER · Department of the Navy · ends Dec 22, 2031$660K
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Awards updated Thu, Oct 8, 2026 · 1:45 PM ET.

This contracting office

15 other open notices from this office · buys mostly IT & Software, Security, Architecture & Engineering

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