FSi Engineers: Seattle Office

FSi Engineers has our home office over the waters of the Salish Sea on Pier 54 of Seattle’s waterfront. We look out toward the beautiful Olympic mountain range, watching ferry, commercial, and pleasure boat traffic as we hear the sounds of the player piano in Ye Olde Curiosity Shop downstairs.

Most of FSi’s staff of about 50 are in Seattle, including engineers, marketing, accounting, and administrative staff. We love the vibrant waterfront area with its many restaurants and proximity to Seattle’s Waterfront Park, which is a wonderful place to enjoy the fresh air. Our building is also home to a seagull nest, which resides on the north window ledge of the office. We’ve gotten to watch the babies hatch and grow up, but not too closely, as the parents object to humans coming near. We even temporarily papered over some of our windows to give the gull family some privacy.

Colman Dock Ferry Terminal
We’re only a short distance from one of our favorite projects, the Colman Dock Ferry Terminal, which we’ve been working on since 2013. It’s fun to stand in the naturally cooled structure, knowing we’ve had a hand in each phase of the ongoing renovation. If you’d like to read more about this project, check out this link.

Other clients in our portfolio include the Port of Seattle, Whatcom County, King County, The Evergreen State College, Harborview Medical Center, and a variety of large manufacturing firms.


FSi Engineers provides a full range of MEP and fire protection design to a variety of public and private clients from the Pacific Northwest to the Mid-Atlantic region. We also provide energy modeling, commissioning, facilities assessments, and help our clients meet new energy code and Washington Clean Building Act requirements.


Learn more: Home page.

All-electric energy codes go statewide

The 2021 Washington State and Seattle energy codes take effect soon. For the first time, all-electric systems are required statewide.

A Space to Learn Wine

Check out our work on the WSU Wine Science Center!

A Cafeteria for the Earth

The sustainable new cafeteria at Green Lake Elementary features state-of-the-art sustainable design.