About Us
Since the company's founding in 1886, we've been committed to creating lasting value for our clients and communities.
We take pride in tackling challenges and exceeding expectations, because fulfillment is found in a job well done. Every detail impacts the integrity of our work and the safety of our people. As employee-owners, we’re passionate about getting it done right every time, from precise estimates to quality workmanship and on-time completion.
At Lewis, our employee-owners are personally invested in the success of our clients and empowered to meet their goals.
Our Culture
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Project Spotlights
222 Fifth
Seattle, Washington
Located steps from Seattle Center and MoPOP, 222 Fifth is a cutting-edge research and development building. The offset massing acknowledges the sculptural forms of its landmark neighbors.
View ProjectProvidence St. Vincent Emergency Department
Portland, Oregon
The Portland metro area's busiest ED now has increased capacity, enhanced operational efficiency, and vital infrastructure upgrades.
View ProjectHI2 Data Center
Hillsboro, Oregon
This 420,000-square-foot, 66-megawatt data center is part of 138-megawatt campus expansion in Hillsboro, Oregon.
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From labs to learning spaces, office towers to hospitals, there’s a good chance we’ve built it.
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How We Build
As problem-solvers at our core, we bring together the right people, the best tools and proven approaches to deliver lasting value.
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Community
We focus our efforts where we can make the most impact: supporting education, creating career pathways and driving equity in construction.
How We Invest
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Our employee-owners have a stake in the company’s success and a voice in shaping its future.
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The Latest from Lewis
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AGC of Washington Names Jennifer Putnam-Petrone 2026 Safety Professional of the Year
We’re proud to share that AGC of Washington has named Lewis safety manager Jennifer Putnam-Petrone the 2026 Safety Professional of the Year—a well-deserved recognition of a career defined by leadership, innovation, and an unwavering commitment to keeping people safe.
Starting her career as a carpenter more than 25 years ago, Jennifer brings firsthand field experience that gives her credibility with crews and leaders alike.
Jennifer’s impact at Lewis is both broad and deeply personal. A mentor to safety professionals across our Washington division, she has a rare ability to translate complex regulations into clear, practical guidance that crews can trust and apply in the field. She approaches every new rule or requirement with care and curiosity, digging into the details, offering thoughtful feedback, and making sure teams understand not just what is changing, but why it matters. That patience and clarity have helped strengthen a safety culture rooted in shared responsibility and continuous improvement.
Breathing New Life into UW's Anderson Hall Through Progressive Design-Build Delivery
Late Friday afternoon, our University of Washington Anderson Hall team received a temporary certificate of occupancy for this transformational renovation!
Anderson Hall is the century-old hub for University of Washington School of Environmental and Forest Sciences. Delivered via progressive design-build with Hennebery Eddy Architects, the project combines seismic upgrades, accessibility improvements, and historic preservation.
Crews have cleaned the façade, repaired a section of the roof, and installed new seismic bracing. Another key element is the addition of an elevator. A new two-story curtain wall on the south end brings in natural light, creates a welcoming entrance, and provides visual connections with other nearby School of Environmental and Forest Sciences buildings.
Protecting and restoring five historically significant areas—the exterior, Forest Club Room, auditorium, two stairwells, and main entry—was a major focus. Woodwork, plaster details, and other original features were removed, cataloged, and reinstalled.
By managing risk during the seismic and abatement phases, the team saved contingency funds that made it possible to add air conditioning.
At its core, this renovation will ensure that Anderson Hall is accessible to all while supporting the vital work of environmental and natural resources instruction and research.
A spring ribbon-cutting ceremony is on the horizon!
Building a 138-megawatt Data Center Campus in Hillsboro, Oregon
In a few short years, we’ve built our Data Centers & Advanced Technology Group (DCAT) from the ground up.
This includes delivering a 138-megawatt data center campus in Hillsboro, Oregon.
In the video above, hear from Lewis director of operations Mike Sager about the unique challenges of retrofitting an existing building and constructing two new ground-up data centers on a constrained 45.5-acre site adjacent to an airport.
Mike also shares how Lewis uses rigorous controls to anticipate procurement challenges, prevent equipment quality issues, and streamline delivery and execution in the field.