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.

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.

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.

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.

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.

Caitlin Eckert

Project Engineer

LEED Green Associate

Bringing a personable and bubbly attitude to project teams, Caitlin has no trouble connecting with any kind of client, owner, or architect. She finds the variability of a Project Engineer’s day-to-day to be fascinating and especially values her time on site which gives her a visual understanding of her work and the project as a whole. Driven by the same sense of curiosity and adventure outside of work, Caitlin stays very active with a variety of hobbies. When she is not trail running, skiing, or climbing, you’ll find her sewing winter adventure hats and hanging out with friends.

Elie Egan

Assistant Superintendent

Elie feels at home taking leadership on her jobsites, working with a team-first attitude, taking pride in the lasting relationships she builds with her colleagues, and ensuring everyone knows the great value of their contributions. Being a firm believer of “work smarter, not harder”—Elie addresses problems critically, always searching for ways to improved solutions and streamline processes through LEAN principles to reduce labor while simultaneously improving quality and minimizing errors. You can also find Elie feeling very much at home on skiis, her stand up paddleboard, and hiking and backpacking on the weekends.

Joe Sahlin

Superintendent

Joe embodies a team player, believing that “a successful project is not achieved by a sole individual.” He consistently acts as the glue that adheres the various entities coordinating a project to one another, supporting the successful delivery of a high-quality product. Joe’s perspective that client expectations are a baseline to surpass, is a product of his competitive spirit.

Barrett Moulton