Undersea Sensor Systems, Inc.

Undersea Sensor Systems, Inc. Ultra Maritime Division, operating as Ultra Sonobuoy Systems, manufactures advanced undersea sensor technologies and acoustic detection systems for the U.S. Navy as a prime contractor on a non-small-business basis, holding multiple high-value indefinite-delivery contracts and other-transaction agreements with Naval Air Systems Command, Naval Sea Systems Command, and Naval Supply Systems Command. The company is a subsidiary of Undersea Sensor Systems Inc. (parent vendor headquartered in Victor, New York) and operates its primary manufacturing facility in Columbia City, Indiana, with additional performance locations in Victor, New York. Undersea Sensor Systems has been registered in SAM.gov since 2001 and competes on full-and-open procurement, carrying no SBA set-aside certifications.

The vendor's capability portfolio centers on sonobuoy design, development, and production — including AN/SSQ-53H, AN/SSQ-62G, SSQ-101B, ER-DIFAR, Q36, Q53, and Q62F variants — alongside hydrophone assemblies (DT-511C, DT-592D models), radio receivers, preamplifiers, and control and signal processing components for anti-submarine warfare and maritime surveillance. Recent representative prime work includes a $236.5 million firm-fixed-price delivery order from Naval Air Systems Command for AN/SSQ-53H sonobuoy production (ultimate completion March 2028) under the $1.653 billion MADOC IDIQ; a $153.4 million delivery order for AN/SSQ-53H sonobuoys (June 2, 2025, completion June 2, 2027) with Pho-Tronics H & T Global Circuits subcontracting on printed wiring board assemblies; and a $136.9 million delivery order for active-passive combo capability sonobuoys (September 15, 2025, completion September 17, 2027) with Mack Technologies supplying GPS receiver modules. A $98 million other-transaction agreement for AN/SSQ-62G sonobuoy low-rate initial production (awarded June 14, 2024, completion May 28, 2026) reflects the vendor's role in transitioning prototypes to sustained production quantities.

Customer concentration is extreme and monolithic. The Department of the Navy accounts for all significant customer relationships. Naval Air Systems Command dominates in potential value, holding 34 awards worth $2.55 billion combined — approximately 90% of the vendor's total combined potential value across 249 awards. Naval Air Warfare Center adds 35 awards totaling $154.5 million. Naval Sea Systems Command and Naval Supply Systems Command provide volume through smaller-dollar component, repair, and spare-parts orders (60 awards, $66.1 million and 46 awards, $15.4 million respectively). The Office of Naval Research and other Navy offices round out a portfolio where Navy customers cover 100% of combined potential value. The vendor holds no material commercial or civilian-agency exposure.

Vehicle position is anchored to four primary indefinite-delivery vehicles. The MADOC IDIQ (Indefinite Delivery Contract N0016401D0021, $1.653 billion ceiling, ultimate completion September 30, 2027) is the anchor, with 29 task orders accounting for the largest concentration of future work. Three multiple-award other-transaction IDVs support low-rate initial production: Q53H LRIP (awarded August 7, 2024, $99.999 billion ceiling), LRIP 125B (awarded February 11, 2026, $99.996 billion ceiling), and SSQ-125A prototype development (awarded March 27, 2024, $7.698 million ceiling). A $10.8 million single-award basic ordering agreement with Naval Supply Systems Command covers P-8 aircraft sonobuoy repair and spare parts (awarded March 8, 2023, ultimate completion September 27, 2024). Additional OTA vehicles for Q53, Q62F, and ER-DIFAR prototypes carry ceilings ranging from $1.1 million to $43 million.

Activity has been steady at 13 to 18 awards per year over the past five years (2022–2025), with three awards recorded in 2026 to date. The recompete cliff presents material exposure: ten awards with ultimate completion dates in the next twenty-four months carry a combined potential value of $572 million, principally the two large sonobuoy production delivery orders ($236.5 million and $153.4 million) completing in 2027 and 2028 respectively, along with the active-passive combo order ($136.9 million) and other smaller repair and component orders. Combined obligated dollars across the portfolio total $1.39 billion against $2.83 billion in combined potential value, indicating substantial unfunded future work on existing vehicles.

Subcontractor engagement shows the vendor operates predominantly as a prime. The nine percent sub-award footprint reflects roles as a component supplier and repair provider under Lockheed Martin (MH-60R and MH-60S aircraft weapon-replaceable and shop-replaceable assembly repair and support across multiple 2023–2025 awards), The Boeing Company (P-8A aircraft systems and fleet support, with three 2025 awards), Leidos (SCULPIN analysis support, September 2025), and Sparton Deleon Springs (AN/SSQ-125 assembly purchases, May 2025). These subcontractor arrangements support the vendor's role as a specialized undersea sensor component and repair provider within larger platform-level integrations.

The vendor operates in two primary NAICS categories: Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (89 awards) and Other Communications Equipment Manufacturing (46 awards). The top PSC classification, Underwater Sound Equipment (86 awards), directly frames the vendor's core competency. Undersea Sensor Systems holds no other significant federal customer relationships, no work with civilian agencies, and no recorded grant awards, reflecting a pure-play Navy undersea warfare supplier posture.