Join / Donate

Please scroll down to see how to BECOME A MEMBER or DONATE to the Grants Pool, Operating Expenses, or our Founders Fellows program. Thank you!

Impact100 Philadelphia’s tax identification number (EIN) is 80-0177821. 

Become a Member

We welcome all women 21 and over who want to join us in collective giving. There are many ways to join:


If you prefer to mail a check, please start by filling out this membership form online. Then mail your check to:

Impact100 Philadelphia
P.O. Box 275
Wynnewood, PA 19096


Have questions or something else in mind, like a stock donation? Contact us and we’re happy to walk you through the details.

Donate to the Grants Pool or Other Programs

Donations to Impact100 Philadelphia are fully tax-deductible. Options include:

  • THE GRANTS POOLDonations before December 1st will support the grants awarded the following June.
  • THE FOUNDERS FELLOWSHIPDonations help sponsor memberships of outstanding younger women who bring diverse perspectives to our membership.
  • SUPPORT OPERATIONSDonations fund the essential work that enables us to accomplish our mission.

To support any of the above, DONATE ONLINE HERE, and select a designation for your funds (Grants Pool, Founders Fellowship, and/or Operating Expenses).

You can also DONATE BY CHECK. Please include a note about how we should designate the funds, and mail your check to:

Impact100 Philadelphia
PO Box 275
Wynnewood, PA 19096

Contact us to donate with stock or by wire transfer, or with any other questions. Thank you! 

Request a Matching Gift

Matching funds from employers are a huge help in offsetting Impact100 Philadelphia’s operating costs and supporting the grants pool. If your or your spouse’s company provides matching gifts, we are greatly appreciative of the support. Companies typically have a detailed process for matching gifts, and Impact100 Philadelphia is not involved other than responding to any informational requests from the company. Contact us with any questions.

Be a Corporate Sponsor

Corporate sponsorship provides essential support for Impact100 Philadelphia’s grantmaking, education, and membership activities. Please contact us to discuss.  

If you have other questions, please see our Frequently Asked Questions about donations.