Supporters and Sponsors

    Thank you to our generous supporters. Clio is non-profit and free for everyone. Donations to the Clio Foundation (EIN 47-2488778) are tax deductible under Internal Revenue Code (IRC) Section 501c3 and Section 170. The IRS maintains this website to allow prospective donors the opportunity verify an organization’s federal tax status and eligibility to receive tax-deductible charitable contributions.

Over $25,000

$10,000 - $25,000

$5,000 - $9,999

$1,000 - $4,999

$500 - $999

$250 - $499

Up to $250

Please consider making a tax-deductible donation today. The entire amount of your donation will support our efforts to improve content and expand the functionality of the website and mobile application.

We are currently raising funds to improve the functionality of our mobile application, hire additional editors, and support a paid internship program that would provide training and support to the next generation of historians.

For more information about how you might help, please contact us at We strive to return all messages within 48 hours.

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