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

Barrett Moulton

Yard Superintendent

Kyla Grennan

Business Development Manager

Bryce Engen

MEP+CX Manager

Jackson Reid

Senior Project Engineer

Sean Royal

Project Engineer

Dennis Sizemore

Cement Mason Superintendent

GLY

Tim Grant

Principal

Reed McNulty

Superintendent

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2026 GLY Construction, Inc.

Kyla Grennan

Business Development Manager

Kyla brings over a decade of experience in commercial real estate and building services. Since 2014, she has helped drive growth through strategic planning, creative thinking, and a passion for building lasting relationships. Known for her attention to detail and client focus, Kyla is trusted by teammates, clients, and partners alike. Her collaborative approach and commitment to innovation make her a key member of our Marketing and Business Development team.

Outside of work, Kyla enjoys spending time with her family and her dog, Lincoln. She's an avid fan of live music and outdoor concerts, always up for a local adventure or cheering on the Mariners and Seahawks! She also enjoys traveling and hitting the golf course whenever she can. Kyla is a longtime member of the Washington State Society for Healthcare Engineering (WSSHE), where she currently serves on the Board of Directors.

Bryce Engen

MEP+CX Manager

LEED AP BD+C, BCXA CCP

Bryce is a mechanical systems and commissioning expert and a self-described Swiss army knife. He gets involved during preconstruction assisting with MEP scopes of work. During construction, he becomes hyper focused on QA/QC processes and procedures. On the back end of the job he develops closeout and inspection schedules and plans for startup and commissioning. He is a passionate alumnus of Washington State University, where he studied Construction Management, and minored in Business. His wife, two kids, two dogs, and Macaw parrot keep life busy but fun. Their latest achievement? Building a house together!

Jackson Reid

Senior Project Engineer

LEED Green Associate

Jackson is a Senior Project Engineer best known for his natural sociability and ability to boost jobsite morale. He remains positive and resilient when faced with challenges and believes that division of labor does not mean a relief of responsibility. With a strong team–first mindset, he understands the collective effort required to deliver successful projects, which is why he enjoys starting his days early on the jobsite and staying engaged with his team throughout the day. Outside of work, Jackson is an energetic outdoorsman who spends his time in the mountains or on the water. He enjoys biking, hiking, surfing, snowboarding, skiing, running, and fishing, and is a former student–athlete who played lacrosse at the University of Washington and with Seattle–area teams. He is also an FAA–certified Unmanned Aircraft Pilot and enjoys flying his drone to capture aerial jobsite photos.

Sean Royal

Project Engineer

Sean recently joined GLY after completing two internships which gave him firsthand experience on high-stakes projects in the construction industry. With a degree in Construction Engineering Technology, he brings a solid foundation of technical knowledge and hands-on experience to his role as Project Engineer. In this capacity, he handles key responsibilities in trade management, overseeing work scopes, ensuring quality and safety compliance, and supporting project scheduling and budgeting. A Kirkland native, Sean enjoys spending his free time on Lake Washington, hitting the golf course, or experimenting with new recipes in the kitchen.

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.

GLY

Tim Grant

Principal

P.E.

Tim spent the first part of his career as a professional structural engineer before arriving at GLY in 2011. He's since completed projects in an array of markets, from healthcare to hospitality, and a long list of high tech corporate campus facilities. On his current project, the University District Station Building, Tim and team are building a 13-story office tower atop Sound Transit's light rail station at NE 45th St and Brooklyn Ave. A former member of the UW track team, Tim traded in his running shoes for hiking boots, and enjoys exploring PNW trails with his wife and two sons.

Reed McNulty

Superintendent

Ever wonder if a Superintendent gets tired of scheduling? Just ask Reed! After more than 37 years in the industry, he still loves solving each new puzzle. A GLY veteran with a deep resume, he’s done it all from high-tech office buildings to heavy site civil work—mentoring up-and-coming field supervisors along the way. Outside the jobsite, he works on his collection of muscle cars and unwinds in the outdoors with fishing and hunting.