Thornton Tomasetti provides engineering design, investigation and analysis services to clients worldwide on projects of every size and level of complexity. We address the full life cycle of structures through our seven integrated practices. Founded in 1956, today Thornton Tomasetti is an 800-person organization of engineers, architects and other professionals collaborating from offices across the United States and in Asia-Pacific, Europe, Latin America and the Middle East. As a 100% employee-held company, we focus on being nimble and adapting to our changing industry to ensure the continued success of our clients.

Our Property Loss Consulting practice helps insurance companies analyze pre- and post-loss risks, damage and property claims arising from natural or man-made perils. Our professionals represent diverse disciplines, from architecture to experts in structural, mechanical, electrical and plumbing engineering. At the heart of our practice is the investigation of damage to structures, which includes cause and origin analyses, engineering assessments for reinstatement of damaged buildings, building code upgrade analyses, and responding to emerging specialized claims such as LEED-certified structures, renewable energy claims, and requirements for buildings to react to changing environmental conditions. In many instances, we provide expert reports and testimony based on our cause and origin investigations.