SEWIP Block 3 Hemisphere and Quadrant EA Subsystem Production, Ancillary Equipment, and Spares
NAVSEA, naval shipyards and surface/undersea warfare centers · NAVSEA HQ
Materiality: 2.0% of $NOC revenue (Medium) SEC
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, 2026 · this noticeAward NoticeNorthrop Grumman Systems Corporation · $783.0M
- 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.
- Note the winner and the end of the period of performance for the recompete.
- Follow the agency to see the next notice for this work.
What the notice says
Northrop Grumman Systems Corporation, Mission Systems Sector, Linthicum Heights, Maryland, is awarded a $334,419,034 firm-fixed price modification to previously-awarded contract N00024-20-C-5519 for production of Surface Electronic Warfare Improvement Program (SEWIP) Block 3 Hemisphere and Quadrant Configuration subsystems. SEWIP is an evolutionary development and acquisition program tasked with continuously upgrading the AN/SLQ-32(V) Electronic Warfare (EW) system aboard U.S. Navy (USN) surface ships. This contract modification is for the delivery of additional quantities of SEWIP Block 3 Hem… (show all)
isphere and Quadrant Configuration subsystems. This contract modification includes options, which if exercised, would bring the cumulative value of this contract action to $783,025,378. Work will be performed in Baltimore, Maryland, (33%), Tampa, Florida (10%), Chelmsford, Maryland (8%), Sykesville, Maryland (7%), San Diego, California (5%), Hudson, New Hampshire (4%), Woburn, Massachusetts (4%), Rochester, New York (3%), Nashua, New Hampshire (3%), Glendale, Arizona (2%), Denver, Colorado (2%), Washington, North Carolina (2%), Longmont, Colorado (1%), Cincinnati, Ohio (1%), and miscellaneous locations � each less than 1% (15%) and is expected to be completed by December 2029. If all options are exercised, work will continue through April 2030.
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 · $39.3B | 5 | $419.2M | Jul 21, 2026 |
| Lockheed Martin Corporation · $LMT · $67.6B | 3 | $3.3B | Oct 7, 2026 |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. · $GD · $42.3B | 2 | $124.8M | Mar 23, 2026 |
| RAYTHEON COMPANY · $RTX · $68.9B | 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 $39.3B revenue in FY2025. The median single-winner award in these 11 past awards, $52.0M, is 0.1% of that. 10-K
- $LMT reported $67.6B revenue in FY2025. The median single-winner award in these 11 past awards, $52.0M, is under 0.1% of that. 10-K
- $GD reported $42.3B revenue in FY2025. The median single-winner award in these 11 past awards, $52.0M, is 0.1% of that. 10-K
- $RTX reported $68.9B revenue in FY2025. The median single-winner award in these 11 past awards, $52.0M, is under 0.1% of that. 10-K
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: 2.5% of $LMT revenue (Medium) SEC
- Jul 21, 2026Northrop Grumman Systems Corporation$39.4MSEWIP Block 3 Design Agent OY4 ExerciseMateriality: 0.10% of $NOC revenue (Low) SEC
- Jun 30, 2026Northrop Grumman Systems Corporation$312.3MFY26 SEWIP Block 3 Hemisphere and Quadrant EA Subsystem Production & Ancillary EquipmentMateriality: 0.79% of $NOC revenue (Low) SEC
- Apr 20, 2026Northrop Grumman Systems Corporation$52.0MFY26-27 SEWIP Block 3 Design Agent Engineering SupportMateriality: 0.13% of $NOC revenue (Low) SEC
- Mar 23, 2026GENERAL DYNAMICS MISSION SYSTEMS, INC.$33.5MMultifunction Modular Mast (MMM) Payload Sensor Award NoticeMateriality: 0.08% 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: 0.04% of $NOC revenue (Low) SEC
- Sep 8, 2025GENERAL DYNAMICS MISSION SYSTEMS, INC.$91.2MSubmarine Tethered Expendable Buoy (STEB) Award NoticeMateriality: 0.22% of $GD revenue (Low) SEC
- Aug 4, 2025Lockheed Martin Corporation$202.8MMultifunction Modular Mast SystemMateriality: 0.30% of $LMT revenue (Low) SEC
- Feb 6, 2025Lockheed Martin Corporation$1.4BAN/BLQ-10 Electronic Warfare SystemMateriality: 2.0% 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.