MacDonald-Miller Facility Solutions has been ranked #16 nationwide on Engineering News-Record’s Top 50 Mechanical Firms list for 2025. ENR’s Top Firms lists recognize the leading contractors based on construction revenue.
Our ranking on ENR’s Top 50 Mechanical Firms is a reflection of our people. Every engineer, technician, and MacMillian contributes to the values that distinguish MacDonald-Miller as a trusted partner to our customers.
We’re committed to delivering excellence and making buildings work better in the Pacific Northwest for years to come.
See More: ENR Top 600
