Terracon’s Seattle office provides environmental consulting, facilities, geotechnical, and construction materials engineering and testing, and organizational development services to clients at local, regional, and national levels. While proud of our national clients, Terracon staffs more than 200 professionals committed to the Northwest. We have offices located throughout the Puget Sound including in the cities of Mountlake Terrace, Lynnwood, and Tacoma, Washington. Our staff in the Washington offices offer engineering and consulting services for both public and private clients. Terracon routinely works as a prime consultant and as a subconsultant. Our experience includes design-bid-build and design-build projects throughout the Puget Sound region.



21905 64th Ave W, Ste 100 Mountlake Terrace, WA 98043-2251
Phone: (425) 771-3304
Fax: (425) 771-3549

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