ADF is the acclaimed legal organization that represented ACSTO in the ACSTO v. Winn litigation at the U.S. Supreme Court.

The American Federation for Children promotes educational choice and innovation, with a specific focus on school vouchers, scholarship tax credit programs, and education savings accounts.

AZCEC is a non-profit coalition of Arizona private Christian schools and organizations that works to preserve the freedom of parents to choose and have access to the type of education that best serves their child. It is dedicated to educating the public, advising legislative bodies on public policy issues related to improving education for Arizona’s children, and participating in limited political advocacy.

ASTOA works solely on behalf of and provides a unified voice for Arizona’s School Tuition Organizations (STOs). It offers mentoring, resources, training and support to STOs as they work to provide tuition tax credit scholarships in compliance with Arizona law.

The Cato Institute is a public policy research organization that provides thoughtful analysis on education reform favoring parental choice for their children’s education.

CAP is a non-profit advocacy organization committed to promoting and defending family values. It actively defends policies geared toward religious and educational liberty in Arizona.

CAPE is a coalition of national organizations and state affiliates serving private elementary and secondary schools. Its mission is to preserve and promote educational pluralism so that parents have a choice in the schooling of their children.

EdChoice is a non-profit, nonpartisan organization dedicated to advancing educational choice to empower all families with the freedom to choose the education that best fits their children’s needs.

The Goldwater Institute is a free-market public policy research and litigation organization that defends the freedoms guaranteed by the constitutions of the United States and the fifty states, including educational freedoms.

The Heartland Institute is a nonprofit research and education organization whose mission includes promoting free-market solutions for American education.

The Heritage Foundation is another research and educational institution. It advances conservative principles including free-market policies, individual freedom, and school choice.

The IJ is a civil liberties law firm that fights on behalf of individuals who are denied their constitutional rights, including the rights of parents to provide their children with a good education. It supported ACSTO and Arizona’s tax credit program in its early years of litigation.

Held each January, National School Choice Week is the world’s largest annual celebration of opportunity in education. This organization raises public awareness of the wide variety of K-12 education options available to children and families, while also spotlighting the benefits of school choice.