Saint Catherine of Siena Catholic School is accredited by Cognia, the parent organization of NCA CASI  and SACS CASI. Cognia is the unified organization of the North Central Association Commission on Accreditation and School Improvement (NCA CASI) and the Southern Association of Colleges and Schools Council on Accreditation and School Improvement (SACS CASI).

Cognia is dedicated to advancing excellence in education worldwide through accreditation, research, and professional services. SACS CASI schools share a unified, clear and powerful accreditation process designed to help schools continuously improve.

Saint Catherine of Siena Catholic School is also a member of the National Association of Private Catholic and Independent Schools(NAPCIS). NAPCIS member schools have achieved and maintain a full commitment to Catholic doctrinal orthodoxy and very high professional and academic standards.