Excelsior School is a college preparatory school based in Arcadia, California, 21 km north-west from Los Angeles. Founded in 1986, Excelsior School is a relatively small, boarding establishment providing the best pathway from secondary level education to post-high school opportunities.
The school offers programs for grades 9–12 (14–18 years students). The curriculum combines traditional classroom methods with online digital media. Every student gets individual attention and personalized instruction from teachers. All Excelsior courses are accredited by Western Association for Schools and Colleges (WASC).
In addition to the classroom learning the school offers professional college counseling. Excelsior school graduates have attended many of the prestigious colleges and universities in California and other states, including Brown University and Columbia University.