Duwamish Shipyard INC

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Cascade Machinery & Electric, INC.	Seattle	Pump and Compressor Manufacturing 333911	● ACTIVE	1.3 KM
FMFederal Marine & Defense Services LLC	Seattle	Ship Building and Repairing 336611	● ACTIVE	2.5 KM
Sound Propeller Services, INC.	Seattle	Machine Shops 332710	● ACTIVE	2.7 KM
Kongsberg Maritime INC	Seattle	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	● ACTIVE	4.0 KM
Vigor Shipyards, LLC	Seattle	Ship Building and Repairing 336611	● ACTIVE	4.0 KM

Every listed plant in King County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 6 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in AIR, AIRS/AFS, CEDRI, EIS, ICIS, NCDB, NPDES, RCRAINFO, TRIS, WA-FSIS · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110000489383 · first seen MAY 2026 · last seen MAY 2026
• EPA ECHO compliance recordsOPERATING
  first seen JUN 2017 · last seen JUN 2017

IN KING COUNTY66 other plants share this one’s industry (Ship and Boat Building, NAICS 3366); 14 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: DUWAMISH SHIPYARD INC · OCT 2026

Street address

EPA: 5658 W MARGINAL WAY SW · OCT 2026

City

EPA: SEATTLE · OCT 2026

State

EPA: WA · OCT 2026

Coordinates

EPA: 47.551282,-122.343439 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: none · OCT 2026