40+ Years Of Experience

Since 1976 McPhail Associates has been providing geotechnical engineering services to architects, owners, contractors, institutions and developers. Over the years our services have expanded to include geoenvironmental, geothermal energy and below-grade waterproofing consultation. In addition, we offer a wide variety of contractor support services including design of temporary and permanent excavation support systems, pile and specialty foundations, and construction dewatering systems. We remain true to the vision of our founder, Robert E. McPhail, and continue to be creative, practical, respected problem solvers, always keeping our clients’ best interest and vision in mind.

Familial Culture

McPhail has a strong familial culture that is fostered by informal social gatherings, in-house knowledge sharing sessions, and annual summer and winter company-wide outings. Our culture has produced a close-knit group of employees who collaborate daily with each other and with architects, engineers and contractors working toward a shared goal of a successful project for all involved.


Our leadership is comprised of three principal owners and four associate principals who are supported by a talented field and office staff. The principals, Ambrose J. Donovan, Chris M. Erikson and Thomas J. Fennick, each have over 30 years’ experience in geotechnical and geoenvironmental engineering and, along with associate principals Amy D. Apfelbaum, Peter J. DeChaves, Joseph G. Lombardo, Jr., and Jonathan W. Patch, function as project managers and manage the day-to-day operations of the company.


Our professional staff have degrees in civil engineering, geotechnical engineering, environmental engineering, environmental science or geology and have a broad base of geotechnical and geoenvironmental experience in subsurface explorations, geotechnical analysis, foundation design, geoenvironmental site evaluation and remediation, design of excavation support systems, geotechnical instrumentation and construction monitoring.