About Us

OneMonroe is a ISO 9001:2015 certified global industrial manufacturing company offering a broad product line and has a diverse customer base of manufacturers, distributors and catalog-houses across several vertical markets including aerospace/defense, automotive, medical, transportation and many more. Monroe has a rich history dating back to the 1920s and Otto Siewek’s role in developing “tooling components”, which helped standardized mass production of automobiles.

Our OneMonroe team lives by a simple question, "How can we help?" OneMonroe has grown with so many customers because we were never afraid to help a customer attack an issue to get it solved correctly, quickly, and in an efficient manner. We continually expand our standard product offering based on the needs of our customers and have expanded our contract manufacturing capabilities to offer more custom solutions than ever before. Backed by a rock solid quality system our goal is to help you with your "problem of the day". Please give us a chance to earn your business.

Monroe Engineering Products is now OneMonroe!

The rebranding includes a name change and a visual refresh of the company’s logo and reflects Monroe Engineering Product’s growth in size and presence and marks a key milestone.

Our Company


We have continued to help serve our customers by acquiring companies that complement our current product lines and increase value and industrial expertise.


We’re here to keep you up-to-date with all the latest happenings at our company, our people, our products and our industry.


We are committed to improve and meet or exceed our customers' expectations and strive for continuous improvement...


Monroe provides custom manufacturing solutions & can manufacture built-to-order parts, custom products and offer a wide variety of services.


Latest OneMonroe News

Employee of the Month: Jim Winn

Congratulations to Jim Winn on being Employee of the Month for August 2023!! Nomination Jim has always been a dependable employee who goes above and beyond his regular duties for the 9 years he has been a part of the … Read More

Employee of the Month: Tim Barbeau

Congratulations to Tim Barbeau on being Employee of the Month for July 2023 Nomination Tim has always been an excellent employee and crucial for keeping things running around here. In our production process, every part we make needs to be … Read More

Employee of the Month: Carrie Hardman

Congrats to Carrie Hardman on being Employee of the Month for June 2023! Nominations Carrie is our first employee to ever receive two separate employee of the month nominations in one month. Below we’ve included both nominations, as well as … Read More

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