Kevin Eng
Chief Estimator
LEED AP BD+C, Associate DBIA™
Kevin praises the aspect of GLY’s culture that provides a variety of paths for diverse abilities and personalities to flourish. Hired on as a Project Engineer, his exceptional preconstruction planning and cost estimating talent quickly developed. As our Chief Estimator, he provides 24 years of building experience and practical knowledge of construction methods, materials, resources and LEED criteria. A generous mentor and creative thinker, Kevin gets involved to guide and directly support estimating efforts on varied and complex projects at GLY.
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.
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.
GLY
Benji Dimer
Project Manager
LEED Green Associate
Since joining GLY in 2017, Benji has distinguished himself as a trustworthy team leader who is continuously learning all he can. He is often the first to arrive and last to leave—by choice!—as he truly enjoys his work and is always willing to take on new challenges, mentor others, and push himself to keep learning and growing. Benji can also often be found biking and enjoying the outdoors.
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.