Parent-teacher group (PTA or PTO)
Aragon High School Ptso Inc a California Npft Public Bnft Corp
San Mateo, CA 94402
Tax-exempt since 2008 · EIN 26-0186824
Find a program / Youth and community nonprofits / California / San Mateo
San Mateo, California
PTAs and PTOs in San Mateo, CA
2 tax-exempt PTAs and PTOs based in San Mateo, from IRS data.
By type
Parent-teacher group (PTA or PTO)
Day School Foundation
San Mateo, CA 94401
Tax-exempt since 1996 · EIN 94-3240988
Also in San Mateo
Licensed child care and after-school programs in San Mateo · California program rules
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Source: IRS Exempt Organizations Business Master File, posted October 13, 2026. We list 501(c)(3) organizations whose IRS activity code is youth development, amateur sports, camps and recreation, parent-teacher groups, children's services, child day care or arts education. We show the city and ZIP code only, never a street address or contact person. A listing is not an endorsement.