Mayville Engineering Company, Inc. Announces Purchase Of Defiance Metal Products

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Mayville Engineering Company, Inc.


All jobs to be retained; focus is on more customer benefits and growing expanded company

MAYVILLE, Wis. – Mayville Engineering Company, Inc. (MEC) today announced it has acquired Defiance Metal Products (DMP), an Ohio-based manufacturer of metal products for the commercial vehicle, agriculture, construction, and military industries, through a private stock purchase. As a result of the acquisition, DMP will become a member of the Employee Owned MEC family.

DMP, which is headquartered in Defiance, OH., is a full-service metal fabricator and value-added provider with two facilities in the Defiance, Ohio area, one in Heber Springs, Arkansas and another in Bedford, Pennsylvania. MEC is employee owned, has sixteen facilities in five different states, Wisconsin, Michigan, Virginia, South Carolina and Mississippi and provides a broad range of prototyping, production manufacturing, fabricating, tube forming, coating and assembly services to a variety of markets including commercial vehicles, on and off-road recreational vehicles, agricultural, construction, military, turf care, mining, medical and industrial.

“This acquisition brings together two great companies into one great team,” said Robert Kamphuis, chairman, president and CEO of MEC. “DMP and MEC both have long histories, blue-chip customers and a talented and committed workforce. We’re delighted to welcome DMP’s employees to the MEC family, and we’re excited to work together to keep growing our expanded company.”

Steve Mance will continue post acquisition as president of DMP, a MEC company and will be involved in integrating the two companies. It is anticipated that all of DMP’s 975 employees will remain with the organization, and no changes are expected in the foreseeable future.

“We are very excited about this acquisition and what it means for our employees and our customers,” Mance said. “Both DMP and MEC are outstanding companies with solid corporate values and great employees that will be important for the future. MEC is clearly a strategic long-term investor that is excited about growing the combined company. This acquisition strengthens our joint future and enhances our ability to compete for the long-term.”

Kamphuis said the result of the acquisition is a stronger, better company. “MEC and DMP combined create greater customer and industry diversification, providing more products and processes through an expanded geographic footprint. Overall, two great companies become one great team.”

The acquisition is effective immediately. Terms of the transaction were not disclosed.

About Mayville Engineering Company
Founded in 1945, MEC is one of the nation’s leading supply chain partners for blue chip original equipment manufacturers. MEC has been recognized by The FABRICATOR magazine as the largest fabricator in the United States for the last eight consecutive years. Headquartered in Mayville, Wis., MEC is an ESOP, an employee owned contract manufacturing company creating outstanding value and support every day for their customers and communities in which they live and work. MEC serves the agricultural, commercial vehicle, construction, forestry, on/off road power sports vehicles, energy, military, and industrial markets. MEC’s processes include complete metal fabrication, laser and plasma cutting, stamping, forming, machining, welding, tube bending and forming, painting, polishing, brazing, cleaning, assembly and kitting, prototyping, product testing and validation. MEC manufactures a wide variety of products including fluid level indicators, stoppers, engine tubes, suction tubes, hydraulic tubes, discharge tubes, fill tubes, high temp coatings, metal encapsulated insulation, fuel tanks, air brake tanks, air intake and exhaust systems, A-arms, axle housings, steering shafts, rollover protection units and complex frames. The firm’s core competencies include collaborative product development, design for manufacturability, engineering and design review, project management and customer service. MEC operates 16 facilities with over 2,080,000 square feet of manufacturing in Michigan, Mississippi, South Carolina, Virginia and Wisconsin and are IATF 16949:2016 and ISO 9001:2015 registered. More information can be found at

About Defiance Metal Products
Defiance Metal Products’ (DMP) is headquartered in Defiance, Ohio at the convergence of two great rivers, the Maumee and the Auglaize. DMP began operating in 1939 and transformed into one of North America’s leading full-service fabrication suppliers to the commercial vehicle market. With a broad range of in-house capabilities and best-in-class quality and delivery performance, DMP serves leading OEMs in the heavy/medium truck and bus, off-road equipment, access equipment, industrial vehicle, and military vehicle markets. Today, DMP operates four facilities located in Ohio, Arkansas and Pennsylvania with over 896,000 square feet of manufacturing space. With IATF 16949:2016 and ISO 9001:2015 registered teams, you can expect quality products delivered on time.