Who We Are

AXIS student on playground

The Colorado Charter School Institute (CSI) is a statewide charter school authorizer. Our mission is to foster high-quality charter public school options for all students. CSI oversees schools across Colorado, from Fruita to Aurora, Durango to Steamboat Springs.

AXIS students

We believe that every child should have access to high-performing school choices. Accordingly, we seek to foster a portfolio of high-quality charter public school options that offer diverse educational models to meet the needs of every child.

AXIS teacher

Our approach to authorizing balances autonomy and accountability. As such, we offer our schools flexibility to choose the methods to best meet the needs of their students. In return, we hold them accountable to clear expectations for performance.

20 Years Logo

Celebrating 20 Years of Impact

 The Colorado Charter School Institute (CSI) is celebrating its 20th anniversary this year, having been founded in 2004 by the state legislature. CSI currently authorizes over 40 charter public schools across the state of Colorado, serving more than 22,000 students. We are committed to continuing to foster a culture of school impact!

Learn more about CSI’s 20th Anniversary

We Serve All Students

Charter schools are public schools. As such, CSI schools are tuition-free and open to all students.

CSI students are comparable to the state averages for the student subgroups identified below.

And, importantly, CSI continues to increase service to students with special needs.

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We Hold Our Schools Accountable for High Performance

CSI holds its schools accountable for academic, financial, and operational performance. Importantly, 3 out of 4 CSI schools earned the state’s highest academic rating.


of our schools are Performance schools

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