Barrett Moulton
Yard Superintendent
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.
Annika Gaffney
Human Resources Director
With over 20 years of experience spanning construction, retail, and hospitality, Annika has mastered the art of building and maintaining a positive, inclusive work culture that fosters employee well-being and engagement. Holding a BS in Business Administration with an emphasis on Marketing, Management, and Entertainment from the University of Montana, Annika brings a blend of creative problem-solving and innovative strategies to her role at GLY. When not at work, she can be found enjoying the outdoors, attending concerts, or cheering at sporting events. Growing up playing softball and spending five years managing, assisting, and playing on the company coed softball team, Annika knows how to bring people together — both on and off the field. As the youngest of six, her experience with juggling multiple personalities is put to good use in HR! Annika is also a proud supporter of Sawhorse Revolution, the AGC Education Foundation, and JDRF Beat the Bridge.
Jeff Crawford
Principal+Healthcare/Life Science
Jeff is a Principal at GLY and leads the firm’s healthcare and life science market sector. He specializes in alternative delivery models and brings strong expertise in preconstruction planning and estimating for everything from large hospital campus expansions to critical equipment replacement. With a BA in Architectural Studies from the University of Washington and nearly two decades at GLY, Jeff combines his design background with project management skills to guide teams on highly technical, complex facilities. Outside of work, he enjoys playing basketball, running, and hiking with his family.
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.
Monty Kilcup
Principal
Monty brings tremendous energy and ingenuity to his clients. He built his career at GLY by delivering creative, value-based preconstruction services, and accurate, timely estimating based on his deep knowledge of current market unit pricing and trends in commodity pricing. Monty works closely with an agile group of construction management, design, and craft professionals who flex to the ever-evolving needs of a project. He is a specialist in the occupied environment, always thinking outside project confines to develop innovative solutions.
Tim Campbell
Executive Vice President+ISP
Tim has been with GLY since 2004 and has a hand in a variety of market sectors, but plays a key role as the firm’s Interiors + Special Projects leader. With experience in a wide range of project types, he adapts quickly to evolving trends and changing needs. On each project, Tim facilitates unique and team-oriented solutions to challenges that support the success of the entire team—owner, architect, tenant, and adjacent stakeholders, making him a trusted and respected leader whose industry relationships continue well beyond project completion.