Steward Machine Co., Inc.

Steward Machine Co., Inc. is a machining and fabrication company with capabilities spanning fabrication, machining, engineering, coatings, inspection, and shipping. The company operates three plant locations and has 290,000 square feet of manufacturing space, supported by heavy CNC equipment and 500-ton lifting capacity, with rail spurs and barge access. Serving industries including movable bridges, hydropower, lock & dam, and aerospace, Steward Machine provides end-to-end support “from blueprints to the final bolt,” including project management, quality control, assembly, and coatings. Notable projects include the Miller Park Retractable Roof (Milwaukee, WI), Bayou Sara Swing Bridge (Mobile, AL), Charleroi Lock & Dam (Charleroi, Pennsylvania), and vertical lift bridges in Massachusetts and Washington. The company emphasizes long-term experience of over 100 years and a “one-stop shop” model across its locations.

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