About Us


Key Educational Group is a nonprofit organization whose purpose is to replicate the Key Educational model and provide centralized business/administrative support services for our network of schools based on the needs of the individual schools. We ensure educational program fidelity and support the network’s mission and vision.

Each school maintains its autonomy by having a separate school board that governs school affairs. 

Our Leadership Team

Krista Kastriotis


As the Executive Director of Key Educational Group, Krista leads the design, development, and growth of high quality charter schools providing alternative educational opportunities to families across the nation.

Krista has nearly two decades of experience working in public education. She started her career as an educator in Denver, Colorado in 2002, following her graduation from the University of Colorado at Boulder. Later she continued her career in education as a teacher, principal, and director in California’s Bay Area.

In 2013, Krista founded a TK-8th grade charter school in the heart of the Bay Area. As the founder and principal, she successfully oversaw the development of the school and attained a charter renewal for an additional five years with the authorizing district.

Throughout her career, Krista has distinguished herself as a powerful instructional leader with notable success establishing collaborative leadership and creating a climate of open communication.

Krista holds a MA in Reading and Literacy and a MA in Leadership and Collaboration with a focus on Charter Schools.

Yoon Chang


As Director of Finance and Administration, Yoon specializes in charter school finance, financial planning, grant development, and school operations.

Prior to joining Key Educational Group, Yoon was a Director of Client Services at EdTec, working with dozens of charter schools across California, from new single site schools getting off the ground, to well established multi-site charters developing into Charter Management Organizations. During her time working with charter schools, she has presented on a variety of financial and operational topics at numerous charter school conferences and workshops, including annual California Charter School Association (CCSA) conferences and the CCSA Replication Summit.

Before working in the education finance field, Yoon was a research associate working on macro monetary policy and food assistance policy issues at a think tank and a policy institute in Washington D.C. She also has experience working in private sector. She was a consultant at one of the big five consulting firms focused in financial services area.

Yoon holds a MA in Applied Economics from Johns Hopkins University and a BS in Business Administration from the University of California, Berkeley.

Tiffani Kastriotis


As the Director of Human Resources and Compliance, Tiffani makes sure that the best talent is recruited, hired, and retained. She also closely works with our data team to validate that our students are continually making academic achievements.  

Tiffani has 13 years of experience teaching in elementary grades. For the past 5 years, she has directed human resources and analyzed test data for charter schools. 

Prior to working in education, Tiffani worked in the private sector as a human resource analysist for a large department store chain. 

Tiffani earned a Masters in Educational Leadership from Fielding Graduate University and graduated from the University of Colorado with a double BA in Communications and Psychology.

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