licensed child care center
A+ IMMERSION PRESCHOOL
San Mateo, CA
Youth and community nonprofits / California / San Mateo
Youth development
Tahdah Foundation
A tax-exempt youth development nonprofit with a mailing address in San Mateo, California, IRS-recognized as tax-exempt since 2016.
IRS facts
Type: Youth development (IRS activity code O12)
Mailing city (IRS): San Mateo, California 94403
EIN: 81-3003647
Tax status: 501(c)(3), eligible to receive tax-deductible donations; IRS-recognized as tax-exempt since 2016, per IRS records posted October 13, 2026.
Revenue on its latest IRS filing: $158,986 (tax year ending 2025-06)
Check its status on IRS Tax Exempt Organization Search · Filings on ProPublica Nonprofit Explorer
How it compares
4 of 10 youth development nonprofits in San Mateo when sorted from largest to smallest revenue. This shows size only, not quality. Groups with no reported revenue are listed last.
Size: revenue of $158,986 is higher than roughly 40 to 50% of the 1,664 youth development nonprofits in California that report revenue to the IRS (the city count above also includes groups with none). The median is $169,823.
Our analysis of the IRS Business Master File (posted October 13, 2026), using each group's latest reported revenue. Groups are sorted by revenue and split into ten equal bands, using all California groups of this type (Youth development, which covers several IRS activity codes). Size only, not a rating.
Around San Mateo and its county
San Mateo County, California: the Census Bureau estimates about 140,186 children under 18 (July 1, 2024). This directory lists 320 youth and community nonprofits with a mailing ZIP code in the county, about 2.3 per 1,000 children. The count includes PTAs, arts and day care groups, so it is not a measure of places for kids.
This group's ZIP code is matched to the county that holds most of its area, so counts are approximate. County figures come from the Census Bureau's Vintage 2024 population estimates.
Licensed programs in San Mateo
70 licensed child care centers, 2 school-age programs are in state licensing records and listed in the BackPR finder. The examples below are not related to this organization.
licensed child care center
A+ IMMERSION PRESCHOOL II
San Mateo, CA
licensed child care center
ANNE CAMPBELL CHILD DEVELOPMENT CENTER
San Mateo, CA
licensed child care center
BERESFORD MONTESSORI
San Mateo, CA
licensed child care center
BERESFORD MONTESSORI ACADEMY INC.
San Mateo, CA
licensed child care center
BRIGHT HORIZONS AT SAN MATEO
San Mateo, CA
California background check rules for youth programs · How BackPR works for youth development nonprofits
Questions about Tahdah Foundation
What is Tahdah Foundation's EIN?
Tahdah Foundation's EIN (Employer Identification Number) is 81-3003647. It is the nine-digit number the IRS uses to identify the organization. Source: IRS Exempt Organizations Business Master File posted October 13, 2026.
Is Tahdah Foundation a nonprofit?
Yes. The IRS lists Tahdah Foundation in San Mateo, California as tax-exempt under section 501(c)(3), recognized since 2016. This is from the IRS Business Master File posted October 13, 2026. Status can change, so check its current status on the IRS Tax Exempt Organization Search before you donate.
Are donations to Tahdah Foundation tax-deductible?
Yes, the IRS lists gifts to Tahdah Foundation as tax-deductible (IRS Business Master File posted October 13, 2026). How much you can deduct depends on your own taxes, and this is not tax advice. Check its current status on the IRS Tax Exempt Organization Search before you donate.
What does Tahdah Foundation do?
The IRS classifies Tahdah Foundation as: Youth development. It has not filed a Form 990 or 990-EZ with a mission statement that we have loaded.
Do you run this organization?
You can add your programs, season dates, ages, prices, registration link and logo to this page, or ask us to remove it. BackPR's free plan for 501(c)(3)s handles online registration, payments, waivers and attendance. No subscription and no BackPR fee on what families pay (card processing fees from Stripe still apply).
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Free forms for youth development nonprofits
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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.
Data as of November 8, 2026. Sources: IRS Business Master File (posted October 13, 2026), U.S. Census Bureau population estimates (July 1, 2024), state child care licensing records in the BackPR finder. Growth labels, ranks and percentiles are BackPR's own calculations.
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