Contract Modification for FY26 SEWIP Block 3 Hemisphere and Quadrant EA Subsystem Production, Ancillary Equipment, and Spares
NAVSEA, naval shipyards and surface/undersea warfare centers · NAVSEA HQ
Capture briefs (a one-page, shareable copy of this page) are part of Pro. The CSV here holds the notice, its timeline and past awards.
Where this opportunity stands
Every notice posted under solicitation N00024-20-C-5519-P00037 in this department, oldest first.
- Dec 19, 2025Award NoticeNorthrop Grumman Systems Corporation · $783.0MOpen
- Jan 26, 2026Award NoticeNorthrop Grumman Systems Corporation · $783.0MOpen
- Jan 26, 2026Award NoticeNorthrop Grumman Systems Corporation · $783.0MOpen
- Jan 26, 2026Award NoticeNorthrop Grumman Systems Corporation · $783.0MOpen
- Jan 26, 2026Award NoticeNorthrop Grumman Systems Corporation · $783.0MOpen
- Jan 26, 2026Award NoticeNorthrop Grumman Systems Corporation · $783.0MOpen
- Jan 26, 2026Award NoticeNorthrop Grumman Systems Corporation · $783.0MOpen
Next steps for this stage
Standard steps for the notice type; not advice about this buyer.
- Answer the notice: this is when the requirement can still be shaped.
- Contact the contracting officer named on the notice.
- Check who won similar work; they are the likely bidders.
What the notice says
17 November 2025 - Pre-Award Synopsis The Naval Sea Systems Command (NAVSEA) intends to award a sole source modification to N00024-20-C-5519 to Northrop Grumman Systems Corporation (NGSC), 150-B W. Nursery Road, Linthicum Heights, MD 21090-2202, to provide FY26 AN/SLQ-32(V)7 requirements through production of SEWIP Block 3 Hemisphere and Quadrant configuration Electronic Attack (EA) subsystems, Ancillary Equipment, and Spares. The proposed contract action will contain fixed-price contract line items. NGSC is the only vendor qualified and capable of meeting the Navy�s FY26 schedule requirements… (show all)
for complete SEWIP Block 3 Hemisphere and Quadrant configuration EA subsystems, Ancillary Equipment, and Spares. The proposed contract action is for supplies or services for which the Government intends to solicit and negotiate with only one source under authority of FAR 6.302-1(a)(2)(ii)(B). Parties interested in subcontracting opportunities should contact Northrop Grumman directly. All responsible sources may submit a capability statement, proposal, or quotation, which shall be considered by the agency. This notice of intent is not a request for competitive proposals. However, all responses received within 15 days after date of publication of this synopsis will be considered by the Government. A determination by the Government not to compete this proposed contract action based upon responses to this notice is solely within the discretion of the Government. DISCLAIMER: This synopsis of the proposed contract action is for information only and shall not be construed as a commitment by the Government to solicit contractual offers or award contracts. The Government is not soliciting, nor will it accept, proposals as a result of this synopsis. The Government will not reimburse respondents for any questions submitted or information provided as a result of this notice. This is not a solicitation or a promise to issue a solicitation, and this information is subject to modification and in no way binds the Government to award a contract.
Who won similar work
11 award notices on SAM.gov in the last 24 months. Matched by: Same office (NAVSEA HQ), same product/service code (PSC) 5865 and NAICS 334511.
Single-winner award sizes (11): middle half $31.0M to $257.6M, median $52.0M; range $991K to $1.7B.
| Winner | Awards | Value | Last |
|---|---|---|---|
| Northrop Grumman Systems Corporation · $NOC · $42.9B | 5 | $419.2M | Jul 21, 2026 |
| Lockheed Martin Corporation · $LMT · $77.0B | 3 | $3.3B | Oct 7, 2026 |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. · $GD · $53.8B | 2 | $124.8M | Mar 23, 2026 |
| RAYTHEON COMPANY · $RTX · $93.5B | 1 | $28.5M | Dec 9, 2024 |
Value counts single-winner awards. "Shared" awards are multiple-award contracts that list every winner with the same total ceiling; that ceiling is not one company's win, so it is not added in. Revenue next to a ticker is the company's last annual revenue from its 10-K.
- $NOC reported $42.9B revenue (12 months to Jun 30, 2026). The median single-winner award in these 11 past awards, $52.0M, is 0.1% of that. SEC filing
- $LMT reported $77.0B revenue (12 months to Jun 28, 2026). The median single-winner award in these 11 past awards, $52.0M, is under 0.1% of that. SEC filing
- $GD reported $53.8B revenue (12 months to Apr 5, 2026). The median single-winner award in these 11 past awards, $52.0M, is under 0.1% of that. SEC filing
- $RTX reported $93.5B revenue (12 months to Jun 30, 2026). The median single-winner award in these 11 past awards, $52.0M, is under 0.1% of that. SEC filing
One award's total value against one year of revenue; many awards are paid over several years.
- Oct 7, 2026Lockheed Martin Corporation$1.7BSEWIP Block 2 FY25/26 ExtensionMateriality: 2.2% of $LMT revenue (Medium) SEC
- Jul 21, 2026Northrop Grumman Systems Corporation$39.4MSEWIP Block 3 Design Agent OY4 ExerciseMateriality: 0.09% of $NOC revenue (Low) SEC
- Jun 30, 2026Northrop Grumman Systems Corporation$312.3MFY26 SEWIP Block 3 Hemisphere and Quadrant EA Subsystem Production & Ancillary EquipmentMateriality: 0.73% of $NOC revenue (Low) SEC
- Apr 20, 2026Northrop Grumman Systems Corporation$52.0MFY26-27 SEWIP Block 3 Design Agent Engineering SupportMateriality: 0.12% of $NOC revenue (Low) SEC
- Mar 23, 2026GENERAL DYNAMICS MISSION SYSTEMS, INC.$33.5MMultifunction Modular Mast (MMM) Payload Sensor Award NoticeMateriality: 0.06% of $GD revenue (Low) SEC
- Feb 9, 2026Northrop Grumman Systems Corporation$991KSEWIP Block 3 DMS Lifetime Buy SparesMateriality: <0.01% of $NOC revenue (Low) SEC
- Jan 7, 2026Northrop Grumman Systems Corporation$14.5MSEWIP Block 3 PIO SparesMateriality: 0.03% of $NOC revenue (Low) SEC
- Sep 8, 2025GENERAL DYNAMICS MISSION SYSTEMS, INC.$91.2MSubmarine Tethered Expendable Buoy (STEB) Award NoticeMateriality: 0.17% of $GD revenue (Low) SEC
- Aug 4, 2025Lockheed Martin Corporation$202.8MMultifunction Modular Mast SystemMateriality: 0.26% of $LMT revenue (Low) SEC
- Feb 6, 2025Lockheed Martin Corporation$1.4BAN/BLQ-10 Electronic Warfare SystemMateriality: 1.8% of $LMT revenue (Medium) SEC
Materiality: one award's value as a share of the winner's revenue over the latest 12 months in its SEC filings (or its last fiscal year, as noted when you point at it). Low under 1%, Medium 1 to 5%, High 5% or more. Many awards are paid over several years, so this overstates a single year's share.
Competitive landscape
For the 4 most frequent past winners above. Lobbying is matched by the company's exact name or exact ticker; agencies are as named on the filings.
- 3 of these past winners lobbied Navy, Dept of or U.S. Marines since 2024 (35 filings)
- 0 of their lobbyists list a past Navy, Dept of or U.S. Marines job
- $1.5M from their corporate PACs since 2024 to members of House Committee on Appropriations, House Committee on Armed Services, Senate Committee on Appropriations, Senate Committee on Armed Services
- 0 foreign-agent (FARA) registrations
Policy around it
Bills the past winners named while lobbying this agency's issues, rules from the department, and executive orders that name the agency, last 12 months.
- 8 bills named on the past winners' lobbying filings
- 32 rules from the department in the last 12 months
- 0 executive orders naming the agency in the last 12 months
Market
For past winners matched exactly to a listed company. Insider trades are open-market buys and sells (Form 4) in the last 90 days, shown as facts; our own study found insiders do not reliably buy ahead of awards. A sale marked 10b5-1 was made under a trading plan set up in advance.
- 4 of the past winners are listed companies
- 0 insider buys and 10 insider sells at them in the last 90 days
Sources: SAM.gov notices and award notices; Senate LDA lobbying filings; FEC filings; FARA; Federal Register; congress.gov; SEC Form 4. Every row above links to its record.
Companies are matched to tickers by exact name only. A company we could not match shows no market rows; that is a miss, not a finding.