Business Description

Mayville Engineering Company, Inc. (MEC) is a leading U.S.-based, vertically integrated, value-added manufacturing partner providing a full suite of manufacturing solutions from concept to production, including design, prototyping and tooling, fabrication, aluminum extrusion, coating, assembly and aftermarket components. Our customers operate in diverse end markets, including heavy- and medium-duty commercial vehicles, construction & access equipment, powersports, data center & critical power, agriculture, military and other end markets. We have developed long-standing relationships with our blue-chip customers based upon our commitment to “Unmatched Excellence”. We provide a diverse set of process offerings and a one-source solution with benefits throughout the entire product lifecycle, including front-end collaboration in design and prototyping, product manufacturing, aftermarket components and ancillary supply chain benefits. Founded as a corporation in 1945 and headquartered in Milwaukee, Wisconsin, we are a leading Tier I U.S. supplier of highly engineered components to original equipment manufacturer (OEM) customers with leading positions in their respective markets. We are focused on producing the highest quality components using complex processes at the lowest cost by working with customers throughout the product design and development process to establish optimal solutions. Our engineering expertise and technical know-how allow us to add value through every product redevelopment cycle (generally every three to five years for our customers). According to The Fabricator magazine, we have been ranked as the largest fabricator in the United States for the past 15 years in a row (2011 – 2025). Our customers’ complex products require a unique combination of our capabilities that allow us to achieve a customized offering to satisfy our customers’ desired outcomes. Our capabilities, which include, but are not limited to: metal fabrication, metal stamping, aluminum extrusion and fabrication, tube bending and forming, robotic part forming, robotic welding, resistance welding, five-axis tube and fiber laser cutting and custom coatings, including high heat and chemical agent resistant coating (CARC) painting, are used in a variety of applications and represent the building blocks of what we produce. Our key customers have globally recognized brands and demand the highest product quality and expertise. Over our 80-year history, we have developed capabilities and provided solutions that result in customer loyalty and long-standing relationships, which we call “The MEC Advantage”. We have a diverse and market-leading customer base that serves broad end markets representing favorable near- and long-term growth prospects for us. We have a track record of growth and are well-positioned to increase our market share and benefit from the growth in customer demand as well as the secular trends of reshoring and outsourcing across the end markets that we serve. To help pursue our strategic mission, we have approximately 2,400 employees who are tactically aligned around our core values. We are led by an experienced management team that has contributed to our growth by establishing deep and long-standing relationships with key customers and has worked to expand the customer base both organically and through strategic acquisitions. 2 Table of Contents We maintain an established base of long-standing customers comprised of leading, blue-chip OEM manufacturers across the United States. Our broad capabilities offering and track record of producing the highest quality solutions have allowed us to establish, and subsequently deepen, relationships with additional products and platforms over time. For example, our more than 40-year relationship with Deere & Company (John Deere) began with a small order of simple stamped parts for a farm tractor in its agricultural segment that expanded over time and represented 2025 sales in excess of $54 million across five market segments, representing over 65 model platforms. We have also been successful in winning customers and rapidly expanding relationships with high-growth customers by utilizing our complete product lifecycle management offering.…