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Headshot of Isaias Villa

Isaias Villa Galvan

Safety Director

CSP, CHST

Professional portrait of GLY employee Dennis Sizemore.

Dennis Sizemore

Cement Mason Superintendent

Headshot of Jeff Angehrn

Jeff Angehrn

Senior Construction Engineer

Headshot of Tyler Roschinger

Tyler Roschinger

Superintendent

Headshot of Danielle Sessler

Danielle Sessler

Senior Project Manager

Professional portrait of GLY employee David Craig.

David Craig

Senior Estimator

Steve Heymes

MEP Specialist

Headshot of Tim Campbell

Tim Campbell

Executive Vice President+ISP

Headshot of Erik Bedell

Erik Bedell

Director of MEP Services

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2026 GLY Construction, Inc.

Professional portrait of GLY employee Dennis Sizemore.

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 Jeff Angehrn

Jeff Angehrn

Senior Construction Engineer

Jeff’s building career began in 1995 and he’s simply one of the best when it comes to complex structures; it’s been said that he’s memorized every detail of every sheet of every project he’s worked on. Plus, he’s repeatedly recognized by his teammates as an exceptional mentor. He holds a BS in Construction Management from Central Washington University. Off the jobsite, Jeff’s an adventurous spirit who enjoys time with family and friends, traveling, boating, snowmobiling, off roading, fishing, and hunting in the remote wilderness.

Headshot of Tyler Roschinger

Tyler Roschinger

Superintendent

LEED AP

With over 25 years of experience, Tyler delivers some of GLY’s most complex projects. His background in engineering, a number of certifications, ongoing industry education, and a full spectrum of market sectors on his resume bring a blend of professional knowledge and building capabilities that are ideal for highly technical projects. His approach? A balance of strong leadership and communication.

Headshot of Danielle Sessler

Danielle Sessler

Senior Project Manager

Associate DBIA™

Construction was always part of the plan for Northwest native Danielle, having grown up in a family that owned a contracting business. She took a few detours first, earning a BFA in Metalsmithing and Art History from Central Washington University and working as a Senior Estimator focused on honing her preconstruction services skills. When she landed at GLY in 2013, we quickly recognized her background would be perfect for Design-Build projects. Outside of work, Danielle enjoys hiking, bouldering, climbing—and collecting “odd things that most people scratch their heads over.”

Professional portrait of GLY employee David Craig.

David Craig

Senior Estimator

Steve Heymes

MEP Specialist

Headshot of Tim Campbell

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.

Headshot of Erik Bedell

Erik Bedell

Director of MEP Services

P.E.

Erik uses his extensive engineering background to assist with integrating mechanical systems into new and existing buildings. With many years of designing mechanical systems under his belt, he’s proven to be an invaluable asset to our clients—specializing in complex life science, technology, industrial, and healthcare projects. Erik previously lived in Colorado, where he developed an obsession for mountain biking. Now racing competitively, he and his family own 12 bikes, living the principle that the correct amount of bikes to own is n+1, with n being the amount of bikes they currently own.