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 six integrated practices in Building Structure, Building Skin, Building Performance, Construction Support Services, Property Loss Consulting and Building Sustainability. Founded in 1956, today Thornton Tomasetti is a 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.