Perteet is an experienced and award-winning infrastructure consulting firm dedicated to enhancing the quality of life in our communities. For 30 years, we’ve been partnering with public agencies to help keep cities and towns moving forward in Washington State and beyond.


What's New: Perteet named in PSBJ's Washington top 100 Best Workplaces

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A Dedicated Team of Employee-Owners

As employee-owners, everyone on the Perteet team holds a stake in our company. With this, we have a unique drive for excellence that allows us to compete with some of the best civil engineering firms in the world. Everyone at Perteet has a strong interest in continually improving the quality of our work and continually offering responsive service to our clients. When our clients succeed, we all succeed, both as professionals, and as members of our communities. More



Welcome Brianne Ross, PE

Brianne Ross, PE is our newest addition to our Transportation Group. More


Featured Project

Connecting Snohomish County

East-West High Capacity Transit Access Study | Snohomish County, WA

Travel corridors in the east-west direction in the southwest part of Snohomish County are limited today, and are frequently congested. Snohomish County turned to a team led by Perteet to evaluate options to improve mobility for these east-west connections.  Learn about the process we deployed, the options considered, and the solutions to move forward.


A Bird's Eye View of Kitsap Transit's North Base


Helping Communities Thrive


From engineering and traffic planning to construction management, we help the cities and towns of Washington State move forward.

Partnering for the Public Good

Our talented and experienced team provides innovative and cost effective infrastructure solutions for the communities we serve and live in.


We’re a 100% employee owned firm committed to empowering our people to realize their full creative potential in a fun and supportive work environment.