licensed child care center
BRYN MAWR PRESBYTERIAN CHURCH
Bryn Mawr, PA
Youth and community nonprofits / Pennsylvania / Bryn Mawr
Parent-teacher group (PTA or PTO)
Main Line Stem Association
A tax-exempt parent-teacher group (pta or pto) nonprofit with a mailing address in Bryn Mawr, Pennsylvania, IRS-recognized as tax-exempt since 2022.
IRS facts
Type: Parent-teacher group (PTA or PTO) (IRS activity code B94)
Mailing city (IRS): Bryn Mawr, Pennsylvania 19010
EIN: 88-3769537
Tax status: 501(c)(3), eligible to receive tax-deductible donations; IRS-recognized as tax-exempt since 2022, per IRS records posted October 13, 2026.
Revenue on its latest IRS filing: Not reported. Groups with under $50,000 in receipts usually file the e-Postcard (Form 990-N), which shows no revenue.
Check its status on IRS Tax Exempt Organization Search · Filings on ProPublica Nonprofit Explorer
Around Bryn Mawr and its county
Delaware County, Pennsylvania: the Census Bureau estimates about 127,662 children under 18 (July 1, 2024). This directory lists 298 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 Bryn Mawr
5 licensed child care centers are in state licensing records and listed in the BackPR finder. The examples below are not related to this organization.
licensed child care center
ITHAN ELEMENTARY SCHOOL
Bryn Mawr, PA
licensed child care center
LET THEM PLAY LEARNING CENTER
Bryn Mawr, PA
licensed child care center
PHEBE ANNA THORNE SCHOOL OF BRYN MAWR COLLEGE
Bryn Mawr, PA
licensed child care center
PLAY AND LEARN CENTER-BRYN MAWR
Bryn Mawr, PA
Pennsylvania background check rules for youth programs · How BackPR works for PTAs and PTOs
Questions about Main Line Stem Association
What is Main Line Stem Association's EIN?
Main Line Stem Association's EIN (Employer Identification Number) is 88-3769537. 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 Main Line Stem Association a nonprofit?
Yes. The IRS lists Main Line Stem Association in Bryn Mawr, Pennsylvania as tax-exempt under section 501(c)(3), recognized since 2022. 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 Main Line Stem Association tax-deductible?
Yes, the IRS lists gifts to Main Line Stem Association 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 Main Line Stem Association do?
The IRS classifies Main Line Stem Association as: Parent-teacher group (PTA or PTO). 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).
Add details to this page · Remove this page · About the free plan
Free forms for PTAs and PTOs
More PTAs and PTOs in Bryn Mawr
Parent-teacher group (PTA or PTO)
Coopertown School Parent Teachers Organization
Bryn Mawr, PA 19010
Tax-exempt since 2015 · EIN 47-4375069
Parent-teacher group (PTA or PTO)
Friends of Harriton Crew
Bryn Mawr, PA 19010
Tax-exempt since 2006 · EIN 41-2192899
Parent-teacher group (PTA or PTO)
Radnor Band & Color Guard Assoc
Bryn Mawr, PA 19010
Tax-exempt since 2014 · EIN 46-1968589
Parent-teacher group (PTA or PTO)
Radnor Robotics Club Association
Bryn Mawr, PA 19010
Tax-exempt since 2024 · EIN 99-1881909
Parent-teacher group (PTA or PTO)
Usna Southeastern Pa Parents Association
Bryn Mawr, PA 19010
Tax-exempt since 2025 · EIN 87-1901081
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.
Something wrong? Tell us and we'll fix or remove it.