Eureka   (707) 443-5054   |   Ukiah   (707) 462-0222   |   Santa Rosa   (707) 525-1222


About Us

LACO Associates ribbon-cutting attendees in SR

LACO provides integrated solutions for development, infrastructure, and geo-environmental projects to advance the quality of life for generations to come, creating a brighter future through engineering, science, planning, and design.


Since 1954, when we opened our first office on the California North Coast, LACO has grown from a small engineering company to a multi-disciplinary professional consulting firm. From the beginning, we have understood the value of personal relationships, the need for diverse professional services, and the importance of preserving and enhancing natural resources. The foundation of our success has been helping our clients achieve their goals while meeting the needs of our community, environment, and the people who make it their home. We now have offices in Eureka, Ukiah, and Santa Rosa.


Our team members recognize that their success as professionals is contingent upon the success of your project, and we have the expertise to help you succeed.