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Readium Foundation

EIN 46-1897095 · Chicago, IL

Public records raise at least one point you should look into before giving.

LegitimacyCautionRegistration and standingFinancial healthNot ratedToo small or too little detailGovernanceNot ratedThe short tax form does not cover thisImpact evidenceDescribes programsHow well its results are evidenced

What it says it does

THE READIUM FOUNDATION SUPPORTS DEVELOPMENT AND ADOPTION OF OPEN SOURCE SOFTWARE AND COMMON DIGITAL STANDARDS FOR THE DIGITAL PUBLISHING INDUSTRY.

Income
$119,450
Spending
$127,560

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. How we rate

Financial health

We do not score finances when yearly spending is very small or the return has too little detail. The ratios stop meaning much at that size.

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. How we rate

Governance

This organization files the short tax form, which does not ask about boards, policies or audits. That is normal for a small charity and is not a mark against it.

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (3)
  1. $89,580 spent. DEVELOP OPEN SOURCE SOFTWARE TO DISPLAY EBOOKS USING OPEN EBOOK STANDARDS. SPONSORED DEVELOPMENT OF NEXT GENERATION OPEN SOURCE SOFTWARE FOR IOS AND ANDROID PLATFORMS, AND WEB-BASED BOOK INTERFACE.
  2. $6,115 spent. SUPPORT COMMUNITY OF OPEN SOURCE SOFTWARE DEVELOPERS. PROVIDED COLLABORATIVE ONLINE WORKSPACES IN GITHUB AND SLACK.
  3. $31,050 spent. PROMOTE ADOPTION AND PROMOTION OF OPEN STANDARDS FOR EBOOKS. HOSTED ONLINE SPACE FOR DEMOS, PUBLICIZED DEVELOPMENT AND NEW RELEASES TO EBOOK DISTRIBUTORS AND RETAILERS ONLINE AND AT CONFERENCES.

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(6) business league.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  2. Has the IRS revoked its tax-exempt status? Worth knowing.

    Status was revoked on May 15, 2023 for not filing returns for three years, and reinstated on May 15, 2023.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated September 30, 2026.

  3. Are donations tax-deductible? Caution.

    The IRS master file records contributions to this 501(c)(6) business league as not deductible.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending December 2025.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since February 2025.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 7, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.