Dwight Hansch
Superintendent
Tyler Tonkin
President+CEO
Since joining GLY in 1998, Tyler has played a pivotal role in shaping the company’s culture and project delivery excellence. Now serving as President and CEO, he brings a collaborative spirit, deep technical expertise, and a strategic mindset to every facet of the business. Tyler’s leadership has guided some of GLY’s most complex and transformative projects—from integrated hospital expansions to urban highrise developments. His commitment to client advocacy and team empowerment continues to inspire innovation and elevate performance across the organization.
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.
Steven Bradshaw
Project Manager
Steven was on the move for much of his childhood. Born in Germany and raised in Texas, Colorado, Wyoming, and Washington, Steven learned to embrace new environments early on. He now thrives on meeting new people, leveraging the diversity among various backgrounds, and working together to find solutions. Steven earned a BS in Construction Management from Washington State University and now looks for opportunities to mentor college and high school students interested in a similar educational and career path. When the sun breaks through, he hops on his bike, works in the yard, plays football, and tries to improve his golf game.
Andrew Ellis
Design Manager
AIA, Assoc. DBIA™
Andrew spent 14 years immersed in his original calling: Architecture. He found that the most enjoyable and rewarding moments occurred while collaborating with builders. Deciding to blend two passions together—design and construction—Andrew now leverages robust VDC tools to better understand, communicate, and help execute a project’s design intent. Simply put, he constructs the building virtually to iron out any wrinkles before it’s built in the field. Outside the office, Andrew can’t get enough of the mountains. The numbers speak for themselves. He’s made his way to the summit of Mount Rainier via 16 different routes!
Nate Downs
Assistant Yard Superintendent
Since joining GLY in 2010, Nate has been a valuable member of our Tool + Equipment Yard team, playing an integral role in the smooth operation of our projects. In addition to his supervisory duties, Nate also supports projects through GPR scanning services. Outside of work, Nate enjoys spending time with his wife and two adult children. He is passionate about all types of outdoor activities, particularly those shared with his family.
Donovan Mabbott
Superintendent
Over the last 30 years, Donovan’s appreciation for quality craftsmanship combined with his natural ability to manage the many moving parts and pieces of a construction jobsite from start to finish has garnered trust and respect from GLY employees, trade partners, and clients. From interior build-outs to full campus developments, he approaches each project by tapping into each team member’s strengths, talents, and skillsets to develop a thoughtful plan—together. Witnessing that plan unfold successfully is his favorite part of his job. On the home front, there is never a dull moment with his four kids, granddaughter, and three dogs—each bringing joy to the family with their own unique personalities. Skylar, the littlest pup, runs the pack.
Chris Kelley
Senior Project Engineer
Chris is a key player on our Interiors + Special Projects team [ISP], collaborating closely with stakeholders and trade partners in sensitive healthcare and life sciences environments. Before moving to the Northwest, he worked on several notable projects in Oregon and California. As a Senior Project Engineer, Chris specializes in detailed estimates, trade partner management, and ensuring high-quality, safe, and organized field delivery. Outside of work, he’s an avid backpacker, hiker, dog lover, kayaker, and camper. Fun fact: while attending the University of Texas at Austin, Chris was a member of the Caretaker and Handler team for Bevo, the university’s live longhorn steer mascot!
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.