Marine Systems, Inc.

Marine Systems, Inc., doing business as Ewing Marine Systems, is a Seattle-based for-profit marine systems contractor that designs, manufactures, and services marine propulsion and auxiliary equipment for federal maritime agencies, operating as a prime contractor on 94% of its federal awards across full-and-open procurement with no set-aside designations.

The vendor's customer base concentrates on maritime operators. The top five funding agencies by award count—US Coast Guard (46 awards, $854 thousand), Naval Military Sealift Command (30 awards, $796 thousand), National Oceanic and Atmospheric Administration (25 awards, $438 thousand), Naval Supply Systems Command (15 awards, $1 million), and Navy Office of Naval Research (13 awards)—account for 55% of awards. However, dollar concentration is heavily anchored by a single outlier: the Department of the Army Corps of Engineers Engineering District St Louis holds one award valued at $10 million (representing 67% of the combined potential-value portfolio), while the Coast Guard, Naval Supply Systems Command, Military Sealift Command, and Veterans Affairs compose the remainder of the 88% coverage. This split signals a portfolio dominated by numerous small-dollar repair and parts orders with one large-value IDV to Army Corps of Engineers.

Recent representative work spans marine propulsion, diesel and auxiliary generator components, and emergency repair services. Marine Systems, Inc. was awarded a $137 thousand firm fixed-price purchase order by the Coast Guard in February 2027 for an auxiliary generator turbocharger replacement destined for USCGC Healy at Base Seattle; a $185 thousand February 2026 order from Naval Facilities Engineering Command for repair parts; a $84 thousand June 2024 Naval Supply Systems Command order for a turbosupercharger with completion scheduled for April 2026; a $54 thousand May 2025 NOAA award for emergency repairs to the #2 diesel engine aboard NOAA Ship Fairweather in Ketchikan, Alaska; and a $248 thousand April 2023 Naval Computer and Telecommunications order for packs and special tools. The vendor also holds an unspecified-dollar $10 million five-year Basic Ordering Agreement with the Army Corps of Engineers for services related to Navy mastership agreements, mentioned in the source as existing infrastructure for ongoing task orders.

The vendor's vehicle footprint is minimal in the source data: an Indefinite Delivery Contract (DTCG8502D625498) and a Blanket Purchase Agreement (DTCG8503P625905), each carrying one task order. The award portfolio suggests the vendor operates primarily through direct purchase orders rather than through major government-wide vehicles or GWACs.

Activity contracted sharply in recent years. The vendor received 23 awards in 2024, then only 3 in 2025, 2 in 2026, and 1 to date in 2027, reflecting a pronounced decline. The recompete cliff shows only one award with ultimate completion in the next twenty-four months, valued at $137 thousand, indicating minimal near-term recompete exposure.

Marine Systems, Inc. subcontracts to Assurance Technology Corp on multiple EMD generator engine overhaul projects (dated August 2024 and March 2024), performing OEM parts sourcing and overhaul services on generator engines under the prime's contracts.

The vendor's award history extends back to 1993, and it has maintained continuous System for Award Management registration since 2001. The NAICS profile confirms marine and engine equipment focus: Ship Building and Repairing (85 awards), Other Engine Equipment Manufacturing (41 awards), and Commercial/Industrial Machinery Repair and Maintenance (35 awards) dominate the portfolio, with procurement codes emphasizing non-nuclear ship repair (37 awards), miscellaneous ship and marine equipment (23 awards), and diesel engines and components (18 awards).