Few engineering firms can match our longevity and track record in California. Founded in 1953, the firm helped drive the spec ... tacular growth which occurred 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 and cost effectively. From offices in Pleasanton and Roseville, the company serves public and private clients throughout Northern and Central California. Our multi-disciplinary teams provide a full array of services for land development and public improvement projects. From entitlements through construction, MacKay & Somps integrates our engineering, planning, and surveying expertise to get projects built. read more