0 Where is Vectren Corporate office Headquarters Headquarters Address and Contact Address: One Vectren Square, Evansville, IN 47708, United States Phone Number: 812-491-4677 Email:Click Here Number of Employees: 1,800 Established: 2000 Key People: Headquarters Location & Directions Headquarters Executive Team Name Title CEO About History and Headquarters Information Headquarters Photos Vectren Company Resources TwitterLinkedIn Website Bloomberg Wikipedia