D'Ambrosio has made seven appearances in eight matches played by the Oakwood SC under-17/18 U.S. Soccer Development Academy team this season. He started 28 matches last year with the under-15/16 squad and served as team captain.
At RHAM (Hebron, Conn.) this past fall, D'Ambrosio was the team captain and had five goals and five assists for a state quarterfinalist. He was a four-year starter at RHAM.
D'Ambrosio was part of the Oakwood team that toured Argentina in 2009.
He joins a Hartford recruiting class that includes Shane Dineen, Dillon Holguin, Blake Jones, Anthony LoBello, Andrew Murry and Jason Orban.