Barrett Moulton
Yard Superintendent
Ben Hamm
Project Executive
Assoc. DBIA™
Ben honed his exceptional leadership skills during his first calling as a high school English teacher, coach, and director of admissions. Patient, communicative, and adaptable to change, the AEC industry scored big when he decided to switch gears and earn another degree, this time in Civil Engineering. Progressing from Project Engineer to Project Executive at GLY, he continues to leverage his diverse background—listening intently to clients and teammates prior to making critical decisions. Hailing from Western New York, where cows outnumber residents, Ben remains a loyal Buffalo sports fan—Go Sabres and Bills!
Steven Li
Senior Estimator
With a 30+ year career in the construction industry, Steven is an Experienced Senior Estimator known for his expertise in Value Engineering, Integrated Project Delivery, Project Engineering, CPM Scheduling, and Constructability. Holding a Master of Engineering in Construction Management and Management Information Systems from the University of British Columbia, as well as an MBA from the University of Singapore and a Bachelor's degree in Building Construction from Shanghai Jiaotong University, Steven brings a wealth of global knowledge to every project. Outside of work, Steven is passionate about staying active and enjoys hiking, jogging, cycling, and other outdoor activities. He’s also training in Filipino martial arts, focusing on Arnis, and is preparing for his black belt test — a journey that combines physical skill with cultural heritage. He is dedicated to promoting human health and wellness, with a personal interest in biology and neuroscience, particularly in areas like weight management and mental well-being. A Seattle resident for over 22 years, Steven roots for the Seattle Seahawks and cherishes time with his wife and teenage daughter.
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.
Grace Kim
Design Engineer
Grace approaches design with a big-picture perspective while ensuring constructability through careful attention to detail. Grace is passionate about the intersection of design and construction, continuously learning how each can strengthen the other to deliver quality outcomes. Outside of work, she enjoys yoga, walks around Green Lake, cheering on the Mariners [and Shohei Ohtani], and has even soared through the Austrian Alps and worked at the Space Needle during college.
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.
Amy Bergman
Project Executive
With GLY since 1999, Amy has managed projects in all sectors and of all sizes. This versatility is what helps her guide teams in keeping the end goal in mind while addressing day-to-day challenges and complex problem-solving. She is an alumnus of the University of Washington with a BS in Construction Management and Minor in Architecture, has served on the board of her local YMCA, and is active in NAIOP and CREW. After work, Amy chases two very active children and the lifelong task of home remodeling.
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.