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Phillippi Engineering Inc. (PEI) was founded in 1983 by Tom Phillippi. PEI has since grown into one of Solano County's largest civil engineering and surveying firms. We are proud to have been a part of major commercial projects in Northern California, including the Nut Tree Redevelopment Project, and major residential master planned communities, such

Gary Powers, with 30 years of experience in design, construction, inspection, and management in the fuels industry, started Powers Engineering & Inspection Inc. (PEI) in 1999. Since then, PEI has grown to a humble, tight-knit, hard-working, eclectic group of individuals with a common goal: to utilize our collective personalities, talents, and skills