Tetra Tech Employee Directory

Civil EngineeringWashington, United States51-200 Employees

Tetra Tech INCA is a civil engineering consulting firm based in Bellevue, Washington, with an additional office in Metairie, Louisiana. It brings together engineers, specialized technicians, surveyors, and administrative personnel to deliver a broad suite of services, including civil, transportation, structural, mechanical, and electrical engineering, as well as surveying and mapping. Projects are executed through multiple delivery methods, such as traditional design-bid-build, design-build, and GC/CM. The firm traces its roots to INCA Engineers, founded in 1983, and became part of Tetra Tech, Inc. in 2008, expanding its organizational reach into a global network. 

As part of the Tetra Tech family, INCA now benefits from a global workforce of roughly 13,000 employees across more than 300 offices worldwide. The arrangement places the firm in the civil engineering sector as a mid-sized consultancy delivering engineering and surveying services for infrastructure projects.

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