Clark-Reliance LLC

Clark-Reliance LLC, a for-profit limited liability company headquartered in Strongsville, Ohio, manufactures industrial components and fluid control systems as a prime contractor to the Defense Logistics Agency and the Department of the Navy, with a small subcontractor footprint on submarine and carrier programs. The company competes predominantly in full-and-open procurements, though recent awards show mixed set-aside posture—some purchase orders carry Total Small Business designations while most do not.

Clark-Reliance's capability portfolio centers on fluid monitoring and control components: liquid sight indicators, pressure gauges, nonmetallic and glass tubing, gaskets, gromet seals, packing, and filter elements. Recent representative work includes a $38.9 thousand Total Small Business purchase order from DLA Aviation for liquid sight indicators (awarded December 30, 2024), a $37.9 thousand Naval Sea Systems Command purchase order for a sight liquid indicator (October 30, 2024), a $42.4 thousand Total Small Business Naval Sea Systems Command purchase order for components (October 29, 2021), and a $23.6 thousand Military Sealift Command purchase order for a USNS Mercy boiler sight glass assembly (July 10, 2025). The company holds an Indefinite Delivery Vehicle contract with DLA Land and Maritime valued at $250 thousand for filter element procurement.

Customer concentration is extreme and monolithic. DLA Aviation dominates the portfolio with 390 awards and $3.4 million in combined potential value, followed distantly by DLA Land and Maritime (155 awards, $1.2 million), DLA Construction and Equipment (85 awards, $515 thousand), and Naval Sea Systems Command (50 awards, $361 thousand). The top five customer entities account for 90% of all awards and 86% of combined potential value. Because the vast majority of Clark-Reliance's work flows through routine DLA supply-chain purchase orders rather than larger contract vehicles, the named parent IDVs (SPE4A616D5005, SP044003D0795, and others) carry only single-digit task order volumes and sub-million-dollar ceilings.

Activity is volatile and recently elevated. Award volume ranged from four awards in 2023 to twenty-one in 2025 (year to date through November), with a five-year average of thirteen awards per year. Combined potential value across all 804 awards totals $7.1 million, though obligated dollars ($9.5 million) exceed the potential-value figure, indicating that invoicing or revised estimates have exceeded original contract ceilings on a portfolio basis.

In its subcontractor role—representing only 2% of the award footprint—Clark-Reliance supplies sight flow indicators and sight glass assemblies to Huntington Ingalls Inc. on CVN-80 and CVN-81 aircraft carrier engineering and construction subcontracts (six sub-awards between May 2023 and July 2025) and to Electric Boat Corporation on SSN-804 submarine construction and SSBN-826 modification efforts (five sub-awards between November 2022 and July 2024). The subcontract work centers on specialized fluid-monitoring instrumentation for naval vessel systems.

Top NAICS codes align with the product mix: Other Measuring and Controlling Device Manufacturing (359 awards), Gasket, Packing, and Sealing Device Manufacturing (62 awards), and Glass Product Manufacturing Made of Purchased Glass (43 awards). The vendor registered in SAM.gov in 2001 and has maintained a consistent position as a routine DLA supply-chain partner for thirty years, with minimal exposure to larger competitive procurements, IDIQs, or GWACs outside the discrete DLA purchase-order ecosystem.