The Milwaukee Business Journal recently released its 2025 Wisconsin Engineering Firms list, which ranks MSA Professional Services, Inc. (MSA) as the largest engineering firm in Wisconsin.

The list ranks organizations based on the number of licensed Professional Engineers (PE) working in Wisconsin locations. MSA’s current total employee count in Wisconsin is 358, 115 of whom are licensed PEs. These employees work from 10 Wisconsin-based offices in Appleton, Baraboo, Beaver Dam, Kiel, Madison, Marshfield, Mequon, Milwaukee, Rhinelander, and Rice Lake.

“MSA continues to foster the professional development and aspirations of our employee owners,” comments Nick Wagner, CEO at MSA. “We have reached an all-time-high employee count and continue to bring exceptional talent on board, both through the recruitment of full-time hires as well as through our robust internship program. Yet the number of licensed PEs is just one means to measure the impact an organization has on communities. I’m proud to see us ranked at No.1 but even more proud of the contributions our team makes every day, assisting a diverse clientele with quality projects and service.”