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!

Ruby Kahnberg

Project Engineer

Ruby brings a well-rounded perspective to her role as a Project Engineer, combining an academic background in architecture and construction management with hands-on experience working for electrical contractors. She is passionate about the built environment and values the balance between thoughtful design and practical constructability. Outside of work, she enjoys embroidering, thrifting, dancing, and sketching around the Seattle area – often finishing her drawings over a glass of wine.

Barrett Moulton

Yard Superintendent

Amereo Forks

General Foreman

As a decisive person with a positive and open-minded attitude, Amereo enjoys the everyday team collaboration. As a General Foreman, Amereo makes good job-site morale and cohesive team environment a priority. He finds joy in seeing the building team bring a client’s vision to life from start to finish. At home, Amereo enjoys tackling small projects and spending time with his family. Fun fact: Amereo is a twin!

Ronnie Dunham

Project Engineer

Ronnie developed an early curiosity for construction, inspired by his father, who worked as president of a Seattle-based glass company and shared stories about the buildings he helped bring to life. Today, Ronnie focuses on relationship development within the industry, where he enjoys connecting with people and learning from their diverse experiences and perspectives. Outside of work, he stays active snowboarding, surfing, and playing soccer–and has even gone shark diving and can juggle.

Tim Campbell

Executive Vice President

Tim has been with GLY since 2004 and has a hand in a variety of market sectors. 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.

Cassie Withrow

Executive Administrator+Administrative Services Manager

Excellent customer service comes naturally to Cassie, who approaches every task with a can-do attitude. As Executive Administrator, she enjoys working with people that encourage her and test her limits but allow her to have fun along the way. She manages her time—and many others’—with extraordinary ease and keeps things running like a well-oiled machine. Outside the office, you’ll find Cassie hiking, exploring the city, and when the sun comes out, boating on Lake Washington—all with her husband and pups by her side.

Garrick Hughes

Principal

LEED AP BD+C

Since joining GLY in 2007, Garrick’s led construction to support the growth of multiple prominent tech companies, as well as high rise build outs and boutique historic re-developments. Managing complex projects and working with a wide spectrum of people and multi-disciplinary firms to meet client commitments and expectations set years in advance of project completion continues to be the focus of his career. Garrick holds an MBA in Finance from Seattle University as well as a BS in Construction Management from WSU, and a Commercial Real Estate Certificate from UW. He became a firm partner in 2019. A Northwest Native, Garrick’s involved in several local community and professional organizations, and never misses an opportunity for an outdoor adventure, exploring mountains with his wife, two daughters, and son.

Kevin Eng