Class Size Matters is a non-profit organization that advocates for smaller classes in NYC’s public schools and the nation as a whole. Our EIN# is 20-2169746.

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Please support us today with a tax-deductible donation! 

Our EIN# is 20-2169746. A copy of our most recently filed financial report is available from the Charities Registry on the New York State Attorney General’s website or, upon request, by contacting the New York State Attorney General, Charities Bureau, 28 Liberty Street, New York, NY 10005, or to us at the above address.

You also may obtain information on charitable organizations from the New York State Office of the Attorney General or (212) 416-8401,