The Charter School for Applied Technologies (CSAT) opened its doors in 2001 as a 700-student school serving grades K-6. Today, CSAT is a busy campus consisting of three distinct buildings (Elementary, Middle and High Schools), that host approximately 2,178 students from 21 different school districts throughout WNY. It has evolved to become the largest charter school in New York State and one of only a few in the area that serve students grades K-12.