PPI Engineering is a full service Agricultural and Civil Engineering firm located in the Napa Valley. With over 70 combined years of experience and a strong respect for the environment, our goal is to provide exemplary services to our clients in a timely and cost effective manner.

PPI Engineering staff have extensive experience in a broad range of specialties relating to vineyard design and development. Expertise includes erosion control, hydrologic modeling, vineyard mapping, geologic site analysis, surface and subsurface drainage design, land use planning, and permitting from Federal, State and Local government. PPI also maintains a fully equipped survey crew for topographic, design and construction surveys. Please see our Services page for more details.