Donan is a full-service, world class, forensic investigation firm with offices throughout much of the United States. Our services include forensic engineering, fire investigation, component testing and HVAC Forensics. Since 1947, Donan's expert investigators have utilized a rewind approach to research incidents, reconstruct events and reveal causes. Our mission is to provide conclusive, unbiased and accurate forensic investigation services with the fastest turnaround time and best customer service in the industry.