Built tech innovation powered by the world’s leading experts. The Why TTWiiN accelerates promising ideas to drive positive change—because the built environment impacts us all. View Our Portfolio The Who TTWiiN is backed by leaders in AEC innovation. Thornton Tomasetti has shaped the building industry since 1949. Learn More The How TTWiiN promotes innovation by combining groundbreaking ideas, deep industry experience, and commercialization expertise. Get In Touch Get our insights in your inbox: Newsletter Subscribe Name* First Last Email* This iframe contains the logic required to handle Ajax powered Gravity Forms.