over 100 years of building tomorrow

WITH capabilities in fabrication, machining, engineering, coatings, inspection and shipping

Three Plant Locations

Three Plant Locations

290,000 Square Feet of Manufacturing Space

290,000 Square Feet of Manufacturing Space

500 Ton Lifting Capacity

500 Ton Lifting Capacity

Heavy CNC Equipment

Heavy CNC Equipment

Rail Spurs and Barge Access

Rail Spurs and Barge Access

Unlocking Possibilities For Various Industries

We Build Everything, So Anything Is Possible.

Covering every corner of the project

From blueprints to the final bolt. 

CNC Precision Machining

CNC Precision Machining

Metal Fabrication and Welding

Metal Fabrication and Welding

AISC-Certified HSS

AISC-Certified HSS

Engineering

Engineering

Project Management

Project Management

Quality control

Quality control

Assembly

Assembly

Coatings

Coatings

Shipping

Shipping

Explore Our Capabilities And Equipment

Notable Projects

Powered by Steward Machine families, past and present.

Charleroi Lock & Dam

Charleroi Lock & Dam

Charleroi, Pennsylvania

Chelsea Street vertical lift bridge

Chelsea Street vertical lift bridge

Between Boston & Chelsea, MA

The Best Machines, Powered By Even Better People.

Steward Machine’s excellence through the years is made possible only by the people who have worked on our team. Each and every role plays a pivotal part in executing work that is built to the highest standards, safely and efficiently. Our excellent benefits, competitive pay, and friendly work environment yield a dedicated workforce with over 20 percent receiving longevity pay.

Start Your Career at Steward Machine Today.

Current Job Openings

What our clients are saying

“Steward provided feedback on available structural… This collaborative effort expedited shop drawing development and engineering review, which was crucial to procuring the grillange in time.”

"Please express to your team the very good work they all have done for us and delivering much ahead of schedule......Thank you very much for all of the meetings and the responsiveness "

"Steward Machine was exceptional and was able to supply all the custom parts necessary to still meet the original completion date despite the changes."

"Steward Machine was instrumental in successful contract performance due to their size and capacity and ability to absorb the numerous contract modifications and deliver in a timely manner."

"The contractor has maintained a positive working relationship...On controversial issues, the contractor has been very reasonable and cooperative in finding solutions."

"Fabrications were exact and of top quality presenting minimal fit- up problems during installation."

"Not only did we receive a great product but also a great personnel experience as well. You kept us informed as to the progress, a prompt timely quote with a great competitive price."

"Work was performed successfully under a challenging specification and to the requirements of AWS D.5 (bridge code)."

"General capabilities and accuracies is superior in this industry."