RSA+ is a civil engineering, surveying, and planning firm dedicated to transforming communities through thoughtful design and technical expertise. Headquartered in Downtown Napa and Downtown Lakeport, we proudly serve Northern California.With a history spanning over four decades, our diverse team specializes in civil engineering, utility detection, construction staking, land surveying, and site planning services. At RSA+, the “+” represents our commitment to going above and beyond, adding value through creative solutions, responsive service, and deep local knowledge.Learn more at rsacivil.com
