Mayville Engineering Company, Inc. MEC

What this company does

Mayville Engineering Company, Inc. is a U.S.-based, vertically integrated manufacturing partner that provides design, prototyping and tooling, fabrication, aluminum extrusion, coating, assembly and aftermarket components. It has approximately 2,400 employees. It serves its customers through 27 strategically located U.S. facilities, of which 25 are in operation, across nine states, with approximately three and a half million square feet of manufacturing capacity. In 2025, its top customer and top ten customers accounted for 13.6% and 62.3% of net sales, respectively. Net sales attributed to its top 20 customers totaled $421 million of 2025 net sales, and no single end market accounted for more than 32% of net sales. It was founded as a corporation in 1945 and is headquartered in Milwaukee, Wisconsin.

Written from the business description in Mayville Engineering Company, Inc.'s annual report to the U.S. Securities and Exchange Commission, filed 4 March 2026. Every sentence was checked against that document before publication.