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Professional portrait of GLY employee Barrett Moulton.

Barrett Moulton

Yard Superintendent

Headshot of Rene Gutierrez

René Ansdell

Senior Project Engineer

Tess Wakasugi-Don

Principal

Headshot of Pete Abeyta

Peter Abeyta

Hoisting+Rigging Superintendent

Laura Soma

Sustainability Manager

Stephen Robeson

Director of ISP | Project Executive

Headshot of Cassie Withrow

Cassie Withrow

Executive Administrator+Administrative Services Manager

Tyler Tonkin

President+CEO

Bryce Engen

MEP+CX Manager

All People

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2026 GLY Construction, Inc.

Headshot of Rene Gutierrez

René Ansdell

Senior Project Engineer

LEED Green Associate

René’s background in construction management and architecture provide her with a fluency in both languages, adding value to each of her projects through this diverse perspective and the ability to see the bigger picture. She is highly detail-oriented, an eager learner, and always emphasizes the importance of staying in close communication. After work, you can find René hiking, painting or drawing, or playing softball and flag football.

Tess Wakasugi-Don

Principal

LEED AP

Tess has built her career at GLY, from humble beginnings as an intern, advancing steadily to a promotion in 2019 to firm principal. She is a dedicated, selfless leader who pays careful attention to every project’s specific vision, technical complexities, and goals. Tess is very effective at coordinating the efforts of design professionals, construction teams, corporate stakeholders, and owners while integrating various service providers into project delivery. She chairs GLY’s internal DEI committee, which focuses on social equity education, employee engagement, and strategies to improve diversity and inclusion on GLY’s projects. Her three young sons inspire her daily to feel empowered, to work hard, and to make time for fun.

Headshot of Pete Abeyta

Peter Abeyta

Hoisting+Rigging Superintendent

Laura Soma

Sustainability Manager

LEED AP BD+C, LFA

It’s no wonder that Laura’s passion is helping people find their potential. She’s worked hard to creatively forge her own career path and achieve her goals. She is active in a number of industry groups and peer networks focused on green building and leads GLY’s internal sustainability efforts. Her background as a Project Manager allows her to connect with clients and project teams to drive sustainability project goals while keeping budget and schedule at the forefront. Laura brings her love of responsible practices [and infectious good spirits] to every project.

Stephen Robeson

Director of ISP | Project Executive

CHC

As Director of Interiors + Special Projects [ISP], Stephen oversees client service, operational excellence, and employee development for the GLY teams that specialize in renovation and tenant improvement work. He has 20+ years of experience in this environment, including alternative delivery for clients in K-12, Higher Education, Healthcare, and Public Works. He is an ASHE Certified Healthcare Constructor and holds a BS in Construction Management from Central Washington University. With GLY since 2018, he is known for his high energy and ability to juggle multiple commitments with ease while still making time to mentor and guide others. He is an active member of the South Sound community who enjoys spending time with family exploring the outdoors.

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.

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.

Bryce Engen

MEP+CX Manager

LEED AP BD+C, BCXA CCP

Bryce is a mechanical systems and commissioning expert and a self-described Swiss army knife. He gets involved during preconstruction assisting with MEP scopes of work. During construction, he becomes hyper focused on QA/QC processes and procedures. On the back end of the job he develops closeout and inspection schedules and plans for startup and commissioning. He is a passionate alumnus of Washington State University, where he studied Construction Management, and minored in Business. His wife, two kids, two dogs, and Macaw parrot keep life busy but fun. Their latest achievement? Building a house together!