An award-winning engineering firm, Duffield Associates is a growing service provider of geoscience technology. Established in 1976, our firm includes a professional, technical and administrative staff dedicated to using their talents and experience towards accomplishing your engineering and geoscience objectives. We know what it takes to get the job done.

As a company, Duffield Associates has systematically and agressively implemented energy saving, water conservation, and sustainable practices throughout our offices and facilities. From constructing a new green building to a pioneering recycling program to geothermal climate control to adaptive reuse, our culture fosters “living green” not only with and for our clients but in our facilities.


Our Mission…

Our mission is to provide responsive, value-added geoscience solutions by developing and maintaining client relationships through exemplary service.