Duramax Marine, LLC

Duramax Marine, LLC, a self-certified small disadvantaged business limited liability company based in Hiram, Ohio, manufactures precision marine bearing components and propulsion system hardware for the federal government as a prime contractor (98% of awards) and subcontractor to major maritime defense primes. The company competes predominantly in full-and-open procurements rather than set-asides, though a small fraction of recent awards carry total small business set-aside designations. Duramax Marine is registered in SAM.gov since August 2001 and operates under CAGE code 1PNP7.

The company's capability portfolio centers on specialized marine bearing manufacturing: bearing staves, stern tube bearings, bearing sleeves, bearing housings, half sleeves, bearing replacement parts kits, strut bearings, and related propulsion components manufactured to military specifications including MIL-DTL-17901C, MIL-B-17901B, and proprietary customer drawings. Recent representative prime contracts include a $2.66 million Defense Logistics Agency Aviation purchase order for housing bearing units (awarded May 1, 2025), a $1.46 million DLA Aviation order for bearing half sleeves (awarded November 21, 2024), and a $762 thousand Naval Supply Systems Command award for bearing and propulsor components (awarded September 26, 2025). Duramax Marine also performs auxiliary marine work: in June 2023, it won a $414 thousand DLA Aviation order for bearing sleeves, and in July 2023, Naval Sea Systems Command awarded a $463 thousand contract for test stand fabrication and delivery. The company's recent award footprint spans purchase orders, delivery orders, and indefinite delivery contracts, with most work performed at its Hiram, Ohio facility and some deliveries staged through Curtis Bay in Baltimore, Maryland.

Customer concentration is heavily weighted to defense maritime agencies. The top five customers account for 81% of award count and 95% of combined potential value. DLA Aviation leads on dollars ($18.7 million across 75 awards) despite trailing the U.S. Coast Guard in order volume (236 awards, $17.4 million). Naval Sea Systems Command places 217 awards worth $10.7 million. DLA Land and Maritime issues the highest order frequency (266 awards) but with lower individual values ($8.6 million combined). Naval Supply Systems Command contributes 40 awards worth $3.5 million. This concentration reflects Duramax Marine's specialization in ship and boat propulsion components and bearing products—the top two product service codes across the portfolio.

Duramax Marine holds four single-award indefinite delivery contracts with DLA and the Coast Guard. The largest is a Coast Guard IDC for propulsion shaft bearing assemblies and components (awarded September 11, 2026, ceiling $1.69 million, through September 2028) supporting 154-foot Waterway Patrol Craft vessels. DLA Aviation maintains a $250 thousand single-award IDC (awarded September 6, 2022, expired 2023) for bearing staves. DLA Land and Maritime operates two $250 thousand IDCs, one total small business set-aside (awarded November 22, 2021, expired 2022) and one without set-aside (awarded November 8, 2022, expired 2023), both for stave components. Task order activity against these vehicles is modest: the Coast Guard IDC generated 30 task orders ($1.2 million combined value), while the DLA Aviation and Land and Maritime contracts together generated roughly 24 task orders.

Duramax Marine's subcontractor footprint is concentrated among major naval shipyards and repair primes. Named partners include BAE Systems Maritime Solutions (Norfolk, Jacksonville, and San Diego), Metro Machine Corp., Vigor Marine LLC, National Steel and Shipbuilding Company, and Electric Boat Corporation. Sub work dates from 2022 forward and focuses on direct material expense for depot ship repair availabilities and modernization periods—examples include bearing stave components for USS The Sullivans (DDG 68), USS Green Bay (LPD 20), USS Porter (DDG 78), and USS John S McCain (DDG 56). This subcontract positioning reflects Duramax Marine's role as a qualified supplier of replacement bearing components for ongoing Navy surface combatant and amphibious ship maintenance.

Activity has remained flat across the past five years: 44 awards in 2022, 43 in 2023, 41 in 2024, and 45 in 2025, with 16 awards captured in 2026 year-to-date. Six awards are scheduled for ultimate completion within the next twenty-four months, carrying combined potential value of $3.3 million and representing modest recompete exposure. The company's award portfolio spans 1,028 transactions over its federal contracting lifetime, with combined obligated dollars ($63.6 million) marginally exceeding combined potential value, indicating consistent execution against ceiling amounts. Top product category concentrations are rubber product manufacturing for mechanical use (251 awards), ball and roller bearing manufacturing (191 awards), and guided missile and space vehicle propulsion unit parts manufacturing (142 awards), with ship and boat propulsion components dominating the PSC landscape at 475 awards.