Mission
To foster ties among members of Alpha Theta Chapter of Sigma Chi Fraternity and cultivate the high ideals of friendship, justice and learning upon which Sigma Chi was founded, to further the continued existence and well-being of Alpha Theta, a fraternity at the Massachusetts Institute of Technology, affiliated with the national Sigma Chi Fraternity, and to carry on activities, provide services and engage in transactions appropriate or incidental thereto. In furtherance of the Alpha Theta Chapter, to maintain and preserve the historic chapter house, a member of the nationally registered Back Bay Architectural District.