Submergence Group LLC
Leander, TX
- UEI
- WM7MHX6LNDH9
- CAGE
- 4PB58
- Primary NAICS
- 336611 Ship Building and Repairing
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Partnership or Limited Liability Partnership
- Other NAICS codes in SAM.gov
- Corporate family
-
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- England H5GXRUZNEL78
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- SAM.gov registration date
- Physical address
- 706 Leander Dr Ste 601, Leander, TX 78641, USA
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $2,578,525 |
| FY2025 | $0 |
| FY2024 | $79,998 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Office of the Secretary of Defense | $1,461,974 | |
| 2 | Department of the Navy | $1,116,551 |
Contract vehicles
Expired vehicles (1)
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Applied Physical Sciences Corp | HR001123C0054 | $1,729,327 | |
| Applied Physical Sciences Corp | HR001123C0054 | $1,725,335 | |
| Applied Physical Sciences Corp | HR001123C0054 | $1,594,418 | |
| Lockheed Martin Corporation | H9222216C0096 | -$1,768,943 | |
| Lockheed Martin Corporation | H9222216C0096 | -$481,277 |
Latest 5 listed here. See the rest on GovTribe.
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About the company
Submergence Group LLC, a Cedar Park, Texas-based limited liability company, provides specialized underwater and maritime component design, engineering services, and technical operational support to the U.S. Special Operations Command and defense agencies as both a prime contractor (24% of recent awards) and a subcontractor (76%). The vendor operates with no stated SBA set-aside designation, competing full-and-open across defense industrial base vehicles and direct contract awards.
Submergence Group's prime work centers on autonomous maritime platforms, submersible systems, and feasibility studies for advanced underwater technologies. Representative prime awards include a $1.46 million Other Transaction Agreement from the Office of the Secretary of Defense for the Combat Autonomous Maritime Platform (CAMP) program (awarded January 2, 2026, completion July 2, 2026, performed in Leander, Texas), and a $79,998 firm-fixed-price purchase order from Washington Headquarters Service as sole-source OEM for a Threat Hazard Map (awarded May 15, 2024). The vendor also holds an indefinite delivery contract valued at up to $4 million with USSOCOM for technical and operational support services.
Customer concentration is extreme. USSOCOM accounts for 30 awards and $45.1 million in combined potential value — 96% of the total prime award base. The Department of the Air Force places 24 awards, the Department of the Navy Naval Sea Systems Command places 7 awards ($222 thousand combined value), the Defense Advanced Research Projects Agency places 5 awards, and the Office of the Secretary of Defense places 1 award ($1.5 million). The top-customers-by-award-count and top-customers-by-potential-value rankings are heavily skewed toward USSOCOM, signaling deep specialization in special operations undersea systems rather than diversified defense support.
Submergence Group's subcontract footprint is dominated by Lockheed Martin Corporation, where the vendor supplies components, technical labor, and engineering services across dozens of sub-awards (2023–2025) for the Dry Combat Submersible (DCS) development and sustainment effort — the largest single program flow in the portfolio. Specific DCS-related subs include thruster cables, camera assemblies, hydraulic components, microcontroller modules, software updates, and technical expertise on propulsion, ballast, and navigation systems. The vendor also subcontracts to Applied Physical Sciences Corp on the Advanced Propulsor Experimental (APEX) Phase 1A engineering services (June 2025, May 2025, March 2025, and September 2024 awards), and to a Scorpionfish submersible design sub (October 2024).
Activity peaked in 2023 with 23 awards; the trajectory shifted to 19 awards in 2024 and 4 in 2025, with 1 award in 2026 to date. Combined potential value across all 68 awards (prime and sub combined) stands at $46.8 million, though obligated dollars total $59.9 million — indicating funded task orders and modifications that exceed stated potential values. The vendor's award portfolio spans from 2010 (first award) through January 2026, with heaviest concentration in 2023–2024 aligned with DCS program acceleration under Lockheed Martin. The indefinite delivery contract H9225417D0001 with USSOCOM carries 29 task orders, anchoring the prime vehicle strategy. Submergence Group operates through a subsidiary, M Subs LIMITED, a for-profit manufacturer of goods.
Quick answers
Is Submergence Group LLC registered in SAM.gov?
Yes. Submergence Group LLC's SAM.gov registration is active through August 17, 2027.
What is Submergence Group LLC's CAGE code?
Submergence Group LLC's CAGE code is 4PB58, and its Unique Entity ID (UEI) is WM7MHX6LNDH9.
Which contract vehicles does Submergence Group LLC hold?
Submergence Group LLC holds a place on 2 federal contract vehicles, including Seaport-NXG.
How much has Submergence Group LLC received in federal contracts?
Federal contracts obligated $2,658,523 to Submergence Group LLC in fiscal years 2023 through 2027.
What is Submergence Group LLC's most recent federal award?
Submergence Group LLC's most recent federal contract award is Combat autonomous maritime platform (CAMP) (HQ0845269E023), from Office of the Secretary of Defense, on January 2, 2026.
On GovTribe
See Submergence Group LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors