About GMT Corporation

A strong, stable manufacturer with an impressive track record of over 50 years in the industry.


For nearly five decades GMT Corporation has been a mission critical partner to equipment OEMs, supplying the globe with products for Defense, Agriculture, Construction, Infrastructure, Craning & Lifting, Oil & Gas, Rail & Transportation, Wind Energy and Aerospace/Air Support.

From modest beginnings as a family owned machine shop that started out of a garage in 1973, to today where we manufacture hundreds of parts & assemblies out of three facilities totaling roughly 400,000 square feet, our 200+ employees proudly serve customers around the globe.

In 2019 GMT was acquired by Summit Agricultural Group, an investment partner. As part of our 10-Year Growth Plan, Michael Clausen joined the company to serve as our President/CEO in October of 2022.

Safety, Quality, Delivery & Continuous Improvement are foundational elements to our House of Strategy. We strive for and routinely achieve a less than 250PPM Quality target. We also routinely deliver on an enterprise OTD target of 98%. Both of these are considered World Class for manufacturing companies. We are committed to driving continuous improvement, proactively sharing cost-basis efficiency gains with our customers.

With a history spanning five decades, GMT has strong roots in Midwestern family and community values. Our commitment to the community is reflected in our focus on hiring top talent from the Cedar Valley and providing them with extensive training and development opportunities such as internships, thorough onboarding programs for new employees, continuous cross-training, and leadership development initiatives. Additionally, we consistently invest in our commercial resources, manufacturing capabilities, and plant automation. As a socially responsible organization, we collaborate with schools and businesses in our local community and actively support various charitable causes.

Aerial View of GMT Corporation Facilities In 1980

We’ll meet any machining challenge you bring us.

Bring us your largest parts, complex projects, and difficult designs. We’ll evaluate the project and deliver a quality solution. From the day your blueprints arrive until the part leaves our facility, we do what we say we’re going to do. We are able to lead you to solutions for challenges you haven’t even thought of yet — new ways to cut costs, time, and waste to make you more competitive.

Our production services are competitively priced and add value to your products.

We are the only manufacturing company in the country who does machining, assembly and large part inspection in-house. Choosing one source for the entire process saves you time, money, and risk.

Our strength solidifies your supply chain.

Our diverse customer base makes us a reliable partner in dynamic business climates. We’ll meet your lead time so you can stay competitive, and we’ll add value by proactively solving problems before they disrupt your supply chain.

We deliver quality that exceeds your expectations.

ISO 9001:2015 certification and a thorough Certified Quality Assurance Program ensure our components meet your precise tolerances and strictest specifications.

We’re centrally located for convenience.

GMT Corporation is located in the heart of the United States — close to foundries, and with easy logistic solutions to America’s major highways, rivers, and railways — so you know your component will be delivered when and where it’s needed.

Choose GMT with confidence.

For nearly five decades, we have evolved to align with our customers’ needs, and we are driven to continuously improve — just like you. We are strong, stable, and well-funded. We’ll be here when you need us.

GMT Corporation Welder Working on a Fabricated Structure

Management Team

Teresa Weber

Teresa Weber
Vice President of Talent & Culture

Teresa joined GMT in November of 2021 as the Vice President, Talent & Culture. In her role, she is responsible for all Talent & Culture functions and teams, including HR and Employee Relations functions, Talent Acquisition, Training & Development and Environmental Health & Safety (EH&S).

Teresa comes to GMT with over 20 years of experience in management roles, including over 13 years of HR leadership in manufacturing. She has a passion for employee performance and development, as well as enhancing employee experience and organizational culture. She is actively engaged in professional and industry trade organizations and currently serves on the American Foundry Society HR Committee and is the AFS Management Council Chair.

Teresa holds a BA from the University of Northern Iowa, and also holds SHRM-SCP and SPHR certifications. When not at work, you can find Teresa along with her husband Jeremy in a gymnasium or softball field cheering for their three daughters in their multiple sports. Her family enjoys anything outdoors, including boating, camping, hiking, and biking.

Jared Graening

Jared Graening
Vice President of Business Development

Jared Graening was named Vice President of Business Development at GMT in March of 2020. He oversees and is responsible for GMT’s growth in strategic and new vertical end markets.

As a second-generation founder of GMT, Jared has over 30 years of experience with the company and has served in a multitude of industry sector experience and leadership roles including operations, sales and supply chain.

Jared enjoys swimming, biking and running. He is involved with coaching youth sports and a member of the Waverly Health Center Foundation Board.


1973 – business started, Eighth Ave SW location

1976 – moved to 2112 East Bremer Ave location. Increased business from JD for ancillary assembly equipment. Tables, benches etc. Also, Carnation.

1978 – Hired design engineer for design and build stamping dies and fixtures

1980 – Built new facility (1801) East Bremer Ave location. Expand capabilities for design and build of stamping dies and fixtures

1985 – Purchased and installed metal stamping press

1985 – Expanded design and build capabilities into special machines

1988 – John Deere PEC farm out work & build to print

1990 – John Deere outsourcing began

1994 – Fabrication business was launched with award from Lockheed Martin

2002 – Awarded business from Caterpillar

2003 – Divested the tool and die business (1801 East Bremer Ave)

2012 – Built new facility LPM (1900 8th Street S.W.)

2019 – Sold majority share of business to Summit Agriculture Group

Our Vision & Mission

GMT strives to be a Mission Critical partner supplying perfect parts on time. We are unique and superior due to decades of expertise in providing large, complex and high-precision machined parts. Our business is strong, growing and continuously improving and investing in people, process and technology.

We believe in running the business in a way that is aligned with our corporate values of ownership, teamwork, excellence and integrity. We seek to be the best employer with the finest and best trained employees in our industry.

We are ready to solve your challenges!

Contact Us For A Quote