Schaefer Engineering Corporation is a forensic engineering firm specializing in failure analysis, accident reconstruction and investigation, fire origin and cause determination, and expert witness testimony. Based in Redmond, Washington we have served clients both nationally and internationally. Our areas of expertise include but are not limited to fire and explosion investigation, mechanical engineering,accident reconstruction, industrial accident analysis and investigation.

MDE Inc. is a multi-discipline forensic engineering firm specializing in failure analysis, accident reconstruction and investigation, fire origin and cause determination, and expert witness testimony. Based in Seattle, Washington we have served clients both nationally and internationally for over twenty years. Our areas of expertise include but are not limited to fire and explosion investigation, mechanical engineering, metallurgical engineering, electrical engineering, accident reconstruction, civil and structural engineering, finite element analysis, industrial hygiene, building envelope investigations, fire suppression analysis, indoor air quality investigation and analysis, mold investigations, industrial accident analysis and investigation. Additionally, we maintain a full forensics laboratory and a fully equipped research and testing facility where we can conduct small to full-scale reconstructions.