Children's and youth services nonprofits in Williamsburg, PA

1 tax-exempt children's and youth services nonprofits based in Williamsburg, from IRS data.

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Amateur sports1 Youth development1 Children's and youth services1

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Children's and youth services

Mattern House Inc

Williamsburg, PA 16693

Tax-exempt since 1991 · EIN 25-1662759

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Licensed child care and after-school programs in Williamsburg · Pennsylvania 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.