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MacKay & Somps Civil Engineers, Inc.



About Us

Since 1953, MacKay & Somps has been helping home builders, developers and public agencies meet their project objectives and get their projects built. 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 development and public works consulting services including planning, engineering, surveying and sustainability. Thoughtful, expert advice adds value to your project and distinguishes our firm as a true partner, seeking to get your project built efficiently and successfully. We can also serve you from our other location in Pleasanton, CA at 5142 Franklin Drive by contacting Mark McClellan at (925) 225-0690 or

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