Originally part of Delta Engineering, Parametrix was created in 1974 when two Delta divisions merged and spun off as a separate company. Recognizing that worker ownership would provide a secure future for its employees and their families, the company transitioned to an ESOP structure in 1992 and became 100 percent employee-owned in 1999. Now working across 12 locations (the majority of which are in Washington State), Parametrix’s 740 worker-owners focus on providing solutions for complex infrastructure and environmental projects.

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