Mayville Engineering Company

MEC is a 100% employee-owned manufacturing company that provides a broad range of prototyping, manufacturing, production fabricating, coating and assembly services to a variety of markets including agricultural, construction, military, recreational, medical and industrial. Along with process engineering and development services, MEC maintains an extensive manufacturing infrastructure in 17 facilities across five states. These facilities make it possible to offer conventional and CNC stamping, shearing, sawing, laser, plasma, and water-jet cutting, forming, drilling, tapping, grinding, tube bending, machining, welding, assembly and logistic services. MEC also possesses a broad range of finishing capabilities including shot blasting, e-coating, powder coating, wet spray and military grade CARC painting.

MEC is highly involved in and actively supports the communities in which our facilities are located. We are well positioned for further significant growth even in a challenging economic period. The products and services that we offer are extensive, which allows us to grow in our existing markets and expand into new ones. Investment in state of the art technology and our commitment to process improvements has allowed MEC to continue to grow.

In 2015 MEC was named the #1 company on the FAB 40 list of the nation's largest fabricators in an annual survey published by The Fabricator magazine, for the fifth consecutive year.

In 2015 MEC ranked number 38 on The Wisconsin 75, marking the eleventh year in a row on the list of the state's largest privately held companies.

Manufacturing, fabrication and coatings company with two manufacturing sites in Mayville (including the Corporate Headquarters), two in Beaver Dam, one in Wautoma and two in Neillsville, WI.


  • Erik Welak
  • 715 South Street
  • Mayville, WI 53050
  • (920) 387-4500
  • (920) 887-3391 (fax)


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1st and 2nd shift operations exist in the Mayville, Beaver Dam, Wautoma and Neillsville facilities.