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Home

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Darkened/stylized background image of construction workers cutting wood
Professional portrait of GLY employee Barrett Moulton.

Barrett Moulton

Yard Superintendent

Dennis Sizemore

Cement Mason Superintendent

Headshot of Troy Alexander

Troy Alexander

Project Executive

Professional portrait of GLY employee Andrew Ellis.

Andrew Ellis

Design Manager

Logan Chun

Senior Preconstruction Engineer

Professional portrait of GLY employee Garth Stoppard.

Garth Stoppard, Jr.

Superintendent

Tyler Tonkin

President+CEO

Headshot of Anita Phonexayphova

Anita Phonexayphova

Senior Design Engineer

Ben Hamm

Project Executive

All People

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2026 GLY Construction, Inc.

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.

Headshot of Troy Alexander

Troy Alexander

Project Executive

LEED AP

Troy’s been managing construction projects in the Pacific Northwest since 2000 and is one of our Interiors + Special Projects [ISP] team leaders. He specializes in unique renovation and improvement work in a variety of market sectors and has a long history of successfully delivering public agency projects using Job Order Contracting [JOC]. Troy enjoys collaborating with professionals of various disciplines to get fast-track projects started and completed on time. Outside of work, Troy enjoys lots of family time, good music, trying a new local beer, and cheering on his favorite sports team.

Professional portrait of GLY employee Andrew Ellis.

Andrew Ellis

Design Manager

AIA, Assoc. DBIA™

Andrew spent 14 years immersed in his original calling: Architecture. He found that the most enjoyable and rewarding moments occurred while collaborating with builders. Deciding to blend two passions together—design and construction—Andrew now leverages robust VDC tools to better understand, communicate, and help execute a project’s design intent. Simply put, he constructs the building virtually to iron out any wrinkles before it’s built in the field. Outside the office, Andrew can’t get enough of the mountains. The numbers speak for themselves. He’s made his way to the summit of Mount Rainier via 16 different routes!

Logan Chun

Senior Preconstruction Engineer

LEED Green Associate, CESPL

Logan brings his personal obsession with timelines and coordination to his career in Preconstruction. He is a person who likes to take immediate action, because as he describes it: "In Preconstruction, success is built on momentum". To maintain this focus, Logan tracks three key wins in a daily journal–instilling the habit of keeping a project progressing and on track. This is an excellent tool for keeping him motivated and passionate, and he finds these "small wins" to be his favorite part about working in this industry. Weather permitting, you can find Logan enjoying his spare time outdoors, whether it's hiking excursions, camping, boating, soccer matches, fishing trips, or snowboarding.

Professional portrait of GLY employee Garth Stoppard.

Garth Stoppard, Jr.

Superintendent

As a second generation carpenter, Garth turned out to be a Jr. in more ways than one. Today Garth is a hard-working Superintendent who enjoys building challenges across sectors, from housing to commercial construction. Garth takes a very thorough, caring approach to getting things done on his projects, and enjoys the outdoor life in his spare time—especially riding dirt bikes, camping or doing anything on or near the water.

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.

Headshot of Anita Phonexayphova

Anita Phonexayphova

Senior Design Engineer

LEED AP

Anita began her career in architecture and has since migrated to the construction world where she enjoys collaborating with design teams and subcontractors to work through constructability issues while achieving design intent. She employs advanced technologies throughout a project’s lifecycle from early design estimates to virtual project handover and closeout. Anita also supports our project teams by coordinating MEP and running clash detection.

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!