Rigsbee Engineering is a multi-disciplinary fire protection, structural and forensic engineering practice in Orange County, California. Its employees are deputized by the Los Angeles Department of Building and Safety to perform smoke control special inspections, the licence required for every smoke control system in the cities of Los Angeles and San Diego. The firm also carries out smoke-control work in Reno, Nevada, and holds nine state engineering licences across Nevada, Arizona, Texas, Vermont, Tennessee, Ohio, Georgia and New Jersey. It is a California-registered Small Business Enterprise founded in 2016.