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Challenge School is a NAEYC accredited Mandarin and English bilingual preschool and WASC accredited Chinese school. We have served Bay Area families since 2003, and have campuses in San Mateo, Belmont, and Fremont. Our program lays the foundation for Chinese language acquisition in preschool and develops children’s understanding of Chinese language and culture throughout their primary and secondary education.

Challenge School Questions

The Challenge School annual revenue was $5 million in 2026.

Sandra Oliveira is the Owner of Challenge School.

2 people are employed at Challenge School.

Challenge School is based in San Mateo, California.

The NAICS codes for Challenge School are [624, 62, 6244, 62441].

The SIC codes for Challenge School are [835, 83].

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