Phillip T. Ragon

Phillip T. “Terry” Ragon is a Massachusetts-based tech billionaire, health and education philanthropist, and supporter of Democratic Party causes. 1  2  3 He is the founder and CEO of InterSystems Corporation, a privately held health care software developer with more than $1 billion in annual revenues. 2  4 He is the sole owner of the company, with a net worth estimated by Forbes at $3.4 billion as of 2026. 5

At-A-Glance

Occupation: Donor
Issue Areas: Multi-Issue Advocacy

Contents

    Philanthropy

    Phillip Ragon and his wife, Susan, are active philanthropists in the Boston area. Their primary philanthropic vehicle is the Phillip and Susan Ragon Foundation, which reported revenues of $10,345,309 and assets of $26,927,630 in 2024. 6  7

    They have made donations of more than $350 million to Boston-area hospitals and health research institutes, including a $100 million donation and another $200 million in pledges toward the development of an AIDS vaccine at the Ragon Institute, a joint research center of Massachusetts General Hospital, the Massachusetts Institute of Technology (MIT), and Harvard University. 7  8

    Ragon and his wife Susan signed the Giving Pledge in 2017, promising to give away most of their wealth.  7

    Political Donations

    Phillip Ragan is an active Democratic political donor. According to the OpenSecrets campaign donation database, Ragan has donated more than $11.8 million to the Democratic Party and its candidates, committees, and associated PACs since 2004.  9

    Ragan began his substantial, six-figure giving in 2012 with a $250,000 donation to the American Bridge 21st Century PAC founded by Democratic operative David Brock. 9 As of 2026, he had made a total of $3 million in donations to American Bridge, including a $1.25 million gift in 2019.  3  9

    The largest recipient of Ragon’s reported giving is the Senate Majority PAC, to which he has donated a total of $3,987,300 from 2018 through mid-2026.  9

    His other cumulative donations as of 2026 include $1,712,700 to the House Majority PAC, $1,018,900 to the Democratic Congressional Campaign Committee (DCCC), $500,000 to Priorities USA Action, and $496,900 to the Democratic Senatorial Campaign Committee (DSCC).  9

    References

    1. “Donor Lookup: Ragon, Phillip.” OpenSecrets. Accessed June 15, 2026. https://www.opensecrets.org/donor-lookup/results?name=RAGON%2C+PHILLIP&order=desc&sort=A.
    2. “Phillip T. (Terry) Ragon.” InterSystems Corporation. Accessed June 15, 2026. https://www.intersystems.com/contact/phillip-t-terry-ragon/.
    3. Goldmacher, Shane. “Biden Banks $242 Million as Big-Name Donors Write Huge Checks.” The New York Times. The New York Times, July 16, 2020. https://www.nytimes.com/2020/07/16/us/politics/joe-biden-fund-raising.html.
    4. Intersystems Media Fact Sheet. Accessed June 15, 2026. https://www.intersystems.com/intersystems-media-fact-sheet.pdf.
    5. “Phillip T. (Terry) Ragon.” Forbes. Accessed June 15, 2026. https://www.forbes.com/profile/phillip-t-terry-ragon/.
    6. “Phillip and Susan Ragon Foundation.” ProPublica Nonprofit Explorer. Accessed June 15, 2026. https://projects.propublica.org/nonprofits/organizations/50547000.
    7. “Phillip and Susan Ragon Foundation.” Inside Philanthropy, June 17, 2025. https://www.insidephilanthropy.com/find-a-grant-places/massachusetts-grants/phillip-and-susan-ragon-foundation.
    8. “Terry Ragon.” MIT Kameel Clinic. Accessed June 15, 2026. https://jclinic.mit.edu/team-member/terry-ragon/.
    9. Author’s calculations using data from “Donor Lookup: Ragon, Phillip.” OpenSecrets. Accessed June 15, 2026. https://www.opensecrets.org/donor-lookup/results?name=RAGON%2C+PHILLIP&order=desc&sort=A.