MacDonald-Miller Facility Solutions, the Pacific Northwest's leading mechanical and sustainable solutions contractor, earned a series of company and culture recognitions in 2025 that underscore its commitment to people, customers, and performance.

The company was recently named to the top spot in Washington’s Best Places to Work - extra large category of companies with more than 500 employees by the Puget Sound Business Journal (PSBJ). The award recognizes organizations where employees report the highest levels of satisfaction and engagement, as measured by an anonymous third-party survey.

In addition to this honor, MacDonald-Miller was ranked the 88th fastest-growing private company in Washington by PSBJ for demonstrating strong, sustainable growth driven by customer partnerships and a regionally focused workforce.

The company also earned top rankings in multiple Portland Business Journal lists, including:

• #3 — Largest Specialty Subcontractors in the Portland Metro Area (by 2024 billings)
• #6 — Biggest Specialty Trade Contractors (by metro employees)
• #7 — Highest-Revenue Private Companies Based in Oregon and Southwest Washington

“I’m incredibly proud of the feedback from our employees as it shows we’re not just talking about having a great culture, we are actively creating it,” said Rory Olson, Chief Executive Officer. “Their commitment is what drives our growth and enables us to deliver exceptional service to customers throughout the Pacific Northwest.”

National Recognition

Nationally, Engineering News-Record (ENR) ranked MacDonald-Miller the 16th largest specialty mechanical contractor in the United States, an exceptional achievement for a mechanical contractor that operates exclusively in the Pacific Northwest. The ranking reflects both the scale and sophistication of the company’s design work, including large-scale mechanical, service, and sustainability projects that help customers meet ambitious performance and sustainability goals.

About MacDonald-Miller Facility Solutions

Founded in 1965, MacDonald-Miller Facility Solutions is the Pacific Northwest’s premier design-build mechanical contractor, delivering integrated solutions in HVAC, plumbing, electrical, building automation, and energy efficiency. With more than 1,400 employees across offices in Seattle, Portland, Spokane, and beyond, the company designs, builds, and maintains high-performance buildings that shape the future of sustainable infrastructure.

For more information, visit www.macmiller.com.

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“I’m incredibly proud of the feedback from our employees as it shows we’re not just talking about having a great culture, we are actively creating it,” said Rory Olson, Chief Executive Officer.