Dennis Sizemore
Cement Mason Superintendent
Dennis is the go-to guy on anything and everything concrete. At age 15, he poured and finished driveways, patios, and shop slabs. When he started at GLY at 18, he was the youngest journeyman in his union. Today, he's a concrete master who oversees projects up to one million square feet. His favorite aspect of the job is the constant change of scenery since he's not on one single project for an extensive amount of time. While concrete is a big part of Dennis’s life, he makes plenty of room for his kids, fishing, hiking, and visiting Kauai, his happy place.
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.
Joe Walker
Project Executive
Joe is a self-motivated, engaging and results-driven construction professional with over 30 years of planning, scheduling, value engineering, and estimating experience on high profile and complex construction projects. His years and variety of experience in the industry makes him a valuable member of the GLY team. He can tackle whatever scope of work is required. His work experience throughout the United States [OR, CA, NV, FL, MD, NJ, NY…to name a few] has taught him there’s no place like home. Joe has four children with his wife—and high school sweetheart—and loves to go hunting and fishing whenever he can.
Chris Kelley
Project Manager
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 Project Manager, 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!
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.
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.
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.
Joaquin Aburto
General Foreman
Joaquin approaches each day on the jobsite with a people-first attitude, emphasizing the importance of a collaborative team culture in finding efficient solutions and creating a learning environment for everyone. One of his favorite aspects of construction is that he leaves each workday having learned something new from his teammates. When he’s not out in the field, you can find Joaquin adventuring in the PNW with his 5 kids.