Katz Okitsu & Associates

Established in 1987, KOA supplies planning and engineering consulting services to private and public sector customers, specializing in traffic engineering, transportation planning and street and roadway design. Our expert team of registered Civil and Traffic Engineers is situated throughout California with offices in Monterey Park, Ontario, San Diego, Orange County, and South Bay. KOA has been involved in many of the biggest public works and transit planning projects in California.