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Dwight Hansch Headshot

Dwight Hansch

Superintendent

Isaias Villa Galvan

Safety Director

Sarah Cunningham

General Foreman

Headshot of Jon Friedrichsen

Jon Friedrichsen

Project Executive

Sean Royal

Project Engineer

Jeff Crawford

Principal+Healthcare/Life Science

Headshot of Tim Campbell

Tim Campbell

Executive Vice President

Trevor Lunde

Director of Virtual Design+Construction

Headshot of Cassie Withrow

Cassie Withrow

Executive Administrator+Administrative Services Manager

All People

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2026 GLY Construction, Inc.

Isaias Villa Galvan

Safety Director

CSP, CHST

Before entering construction safety, Isaias began his career as a wildland firefighter, where he developed a calm, confident approach to risk management. That experience made his transition into safety and construction management a natural progression. He has since proven himself a strong leader, capable of guiding teams of safety professionals and fostering a culture rooted in accountability and safe work practices, making him the perfect fit for Safety Director at GLY. Outside of work, Isaias stays active through Brazilian Jiu Jitsu, strength training, running, hiking, and golfing, and he enjoys spending downtime reading. Despite calling himself the world’s worst swimmer, swimming remains a favorite hobby [an unexpected passion that perfectly reflects his willingness to embrace any challenges he is faced with].

Sarah Cunningham

General Foreman

As a General Foreman, Sarah is known for always thinking ahead and looking out for everyone’s best interest. She enjoys the camaraderie on the jobsite and the pride that comes from persevering and building something together. A recent project of Sarah's featured a major geothermal energy system, and she used that experience to teach others at GLY about geothermal energy and how different types of systems can be used. Her hobbies include hiking, cycling, gardening, and traveling the world every chance she gets. But her favorite thing? Golden Retrievers!

Headshot of Jon Friedrichsen

Jon Friedrichsen

Project Executive

HCC

Jon attributes his appreciation of craft and hard work to working as a carpenter for a Spokane-based general contractor while earning a BS in Construction Management from Washington State University. Since joining GLY in 1999, he’s honed his expertise as a healthcare and high-tech office project manager and team builder. When he’s not piecing together complex logistics plans, you’ll find Jon cheering on the Seattle Sounders or casting a line. If he could talk his wife into selling everything and living in a trailer down by the river, he’d be there already.

Sean Royal

Project Engineer

Sean recently joined GLY after completing two internships which gave him firsthand experience on high-stakes projects in the construction industry. With a degree in Construction Engineering Technology, he brings a solid foundation of technical knowledge and hands-on experience to his role as Project Engineer. In this capacity, he handles key responsibilities in trade management, overseeing work scopes, ensuring quality and safety compliance, and supporting project scheduling and budgeting. A Kirkland native, Sean enjoys spending his free time on Lake Washington, hitting the golf course, or experimenting with new recipes in the kitchen.

Jeff Crawford

Principal+Healthcare/Life Science

Jeff is a Principal at GLY and leads the firm’s healthcare and life science market sector. He specializes in alternative delivery models and brings strong expertise in preconstruction planning and estimating for everything from large hospital campus expansions to critical equipment replacement. With a BA in Architectural Studies from the University of Washington and nearly two decades at GLY, Jeff combines his design background with project management skills to guide teams on highly technical, complex facilities. Outside of work, he enjoys playing basketball, running, and hiking with his family.

Headshot of Tim Campbell

Tim Campbell

Executive Vice President

Tim has been with GLY since 2004 and has a hand in a variety of market sectors. With experience in a wide range of project types, he adapts quickly to evolving trends and changing needs. On each project, Tim facilitates unique and team-oriented solutions to challenges that support the success of the entire team—owner, architect, tenant, and adjacent stakeholders, making him a trusted and respected leader whose industry relationships continue well beyond project completion.

Trevor Lunde

Director of Virtual Design+Construction

Associate DBIA™

Trevor is an industry innovator with over 22 years of experience devoted to creating synergy between architectural design and technical construction. Trevor leads strategic business planning for the company’s Virtual Design and Construction [VDC] and technology efforts and provides companywide training on GLY delivery philosophy and VDC process. Having been both a project architect and a construction manager, he identifies valuable opportunities for coordination and collaboration amongst designers, engineers, and tradespeople. Trevor respects each discipline’s individual process and expertise while ensuring constructability. Trevor’s downtime is spent playing with his kids or fishing.

Headshot of Cassie Withrow

Cassie Withrow

Executive Administrator+Administrative Services Manager

Excellent customer service comes naturally to Cassie, who approaches every task with a can-do attitude. As Executive Administrator, she enjoys working with people that encourage her and test her limits but allow her to have fun along the way. She manages her time—and many others’—with extraordinary ease and keeps things running like a well-oiled machine. Outside the office, you’ll find Cassie hiking, exploring the city, and when the sun comes out, boating on Lake Washington—all with her husband and pups by her side.