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Geometric Decoration
Phil Gregory headshot

Phil Gregory, P.E., G.E.

Senior Principal

Phil oversees the growth, service quality, and profitability of Haley & Aldrich’s geotechnical services in California. In this role, he works closely with our clients and staff, driven by his desire to understand clients’ needs and to support teams of professionals to consistently meet those needs. 

Phil cofounded Cal Engineering & Geology (CE&G), a leading geotechnical engineering firm with roots in the Bay Area, in 1993. Under his leadership, CE&G grew from a two-person firm into a highly respected regional geotechnical and civil engineering consultant and design firm. Phil was instrumental in the company’s growth and successfully led the acquisition and integration of its people, operations, services, and technology into Haley & Aldrich.  

Phil coined CE&G’s trademarked term Pragmatic Expertise, a concept that merges with Haley & Aldrich’s approach to project delivery. This approach consistently produces clear and comprehensible deliverables, facilitating the execution of construction projects that are biddable and buildable.  

  • Checkmark Creek and flood control channel improvements 
  • Checkmark Earth dam and levee investigations and improvements 
  • Checkmark Floodwalls and discharge outfalls 
  • Checkmark Foundation retrofitting 
  • Checkmark Landslide analyses and repairs 
  • Checkmark Open trench and trenchless pipeline projects 
  • Checkmark Project management and leadership 
  • Checkmark Road stabilization and pavement rehabilitation 
  • Checkmark Solid waste disposal 

“For the more than 40 years I’ve worked as a geotechnical and civil engineer, I have drawn motivation from finding practical solutions based on detailed analytics — solutions that support, rather than dictate, the direction of a project.”