About MacKay & Somps
Few engineering firms can match our longevity and track record in California. Founded in 1953 by Donald MacKay and George Somps, the firm helped drive the spectacular growth occurring in the Santa Clara Valley after World War II, creating more subdivision lots in the San Francisco Bay region than all other engineering consultants combined.
Today’s leadership retains the same core business philosophies that make our company one of the largest and most successful private civil engineering firms in Northern California. MacKay & Somps delivers high quality service to home builders, land developers, and public agencies to get their projects built efficiently, cost effectively, and on time.
EXECUTIVE MANAGEMENT TEAM
Mark McClellan, P.E.
Principal
Paul R. Hart, P.E., QSD/QSP
Principal
Chris Ragan, P.E.
Principal
OPERATIONS & DEPARTMENT MANAGERS
Roseville, CA
Donna Pasquantonio, ASLA, LEED AP
Operations Manager, Planning Manager,
& Associate Principal
Steve Smith, P.E.
Chief Engineering Manager & Associate Principal
Jennifer Lane, P.E.
Assistant Operations Manager
& Engineering Manager
Holger Fuerst, P.E.
Engineering Manager
Pleasanton, CA
Chris Guenther, P.E.
Operations Manager
& Engineering Manager
Bob LaShells, P.E.
Associate Principal
Ian MacDonald, L.S.
Survey Manager
Administrative Services
Jennifer Yokel
Operations Manager
