Rancho Solano Preparatory School is a PK-12 international learning community for high-achieving students that offers a highly individualized education experience completely unique to the Arizona market. There is no cost to join the PTO and by registering on this site, your family will have access to our easy donation portal, volunteer opportunities, and direct communication updates that will help our parents stay connected with our PTO and school community. Rancho Solano PTO, Inc. is a 501(c)(3), non-profit organization that works directly with the Lower School PTO Committee, Upper School PTO Committee, Mustangs Athletic Booster Club, and the Rancho Solano Leadership Team.  Our EIN# is 83-2795860.