Blue Heron Group, INC.
Washington Machine Works is a machine shop that provides precision machining services including boring, drilling, milling, tapping, turning, and reaming using both CNC and conventional methods, with specialization in large parts and hard-to-work materials. The company also offers machinery repair and maintenance, and fabrication and assembly services including welding, metal forming, gear cutting, splining, heat-treatment, sandblast, and powder coating through local partners. The shop serves customers needing prototypes, small lots, one-off fabrications, and emergency repairs, with equipment capable of handling parts up to 13 feet in diameter for turning and over 7 feet in length for milling.
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Blue Heron Group, INC. | Seattle | WA | — | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.

