ACE Mentor Program is a nationwide, free, after-school mentoring program for high school students to learn about careers in the Architecture, Construction, and Engineering industry. It was founded in 1994 in New York City by Charlie Thornton of Thornton Tomasetti, who saw the need to grow and diversify the AEC industry. Today it is a federation of 70+ affiliates operating in 38 states, plus the District of Columbia, Puerto Rico, and Toronto.