Josh Lewis

Senior Project Manager

Organized, decisive, and driven, Josh approaches every project with a clear understanding of the client and company’s needs. His favorite part about his position is that no two projects are ever alike, as he is a person who enjoys overcoming the hurdles of a project from start to finish. Quite fitting to his problem–solving nature, he enjoys classic games that require lots of thought and strategy, from chess to backgammon to cribbage. Outside of work he also stays busy coaching youth baseball, softball, basketball, and his son’s Little League All-Star Team, who made it to the State Championship in 2024!

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].

Caitlin Eckert

Project Engineer

LEED Green Associate

Bringing a personable and bubbly attitude to project teams, Caitlin has no trouble connecting with any kind of client, owner, or architect. She finds the variability of a Project Engineer’s day-to-day to be fascinating and especially values her time on site which gives her a visual understanding of her work and the project as a whole. Driven by the same sense of curiosity and adventure outside of work, Caitlin stays very active with a variety of hobbies. When she is not trail running, skiing, or climbing, you’ll find her sewing winter adventure hats and hanging out with friends.

Ruby Kahnberg

Project Engineer

Ruby brings a well-rounded perspective to her role as a Project Engineer, combining an academic background in architecture and construction management with hands-on experience working for electrical contractors. She is passionate about the built environment and values the balance between thoughtful design and practical constructability. Outside of work, she enjoys embroidering, thrifting, dancing, and sketching around the Seattle area – often finishing her drawings over a glass of wine.

Tony Fontanez

Superintendent

With over 40 years of experience in construction, Tony is a renovation specialist who works closely with our clients to tailor solutions to each project's unique goals and requirements. He's led projects at airports, hospitals, universities, fire stations, and everything in between. Safety is always his top priority, especially in occupied, sensitive spaces where the comfort of patients and staff is paramount.

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.

Dan Frye

Layout Superintendent

Dan is GLY’s go-to guy for anything and everything relating to site surveys and layout. As a consummate team player and expert on layout technology, Dan is responsible for not only planning and coordinating project needs with superintendents, but also for training and educating the GLY Layout Crew and helping The Yard with long range equipment planning. When he’s not out in the field, Dan is 100% family man, spending as much time with his wife and kids as he can.

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.

Sean Royal