LeaderPortfolio
Ragon
P
Rank #1212
UNITED STATESTechnologyHealth IT

Phillip T. (Terry) Ragon

Net Worth
$3.49B
0% (24h)
Phillip Terrence "Terry" Ragon is an American entrepreneur and philanthropist, best known for founding and leading InterSystems Corporation. Born in 1949, Ragon earned a B.S. in physics from MIT in 1971. He founded InterSystems in 1978, a global software company specializing in data management and healthcare applications. As of 2024, his net worth is estimated at $3.2 billion. Ragon is also recognized for his significant philanthropic contributions, particularly in medical research through the Ragon Institute, which he co-founded. He is married to Susan Ragon, and they are committed to giving a majority of their wealth to charitable causes, signing The Giving Pledge in 2017.

How to read Phillip T. (Terry) Ragon's profile

Public net-worth figures are estimates. They combine observable inputs—typically listed equity, disclosed transactions, and market prices—with editorial judgment where filings are incomplete (for example, private holdings, debt, or cross-holdings). For Phillip T. (Terry) Ragon, we anchor the narrative to Health IT and Health IT, then update the headline number as markets move. The chart on this page is meant to show trajectory, not a certified balance sheet.

When you see $3.49B alongside global rank #1212, interpret it as our best synthesis of widely cited ownership and price signals—not a claim about cash on hand. Estimates can diverge from other publishers because of different treatment of options, trusts, charitable vehicles, or illiquid assets. We document the general approach in methodology and welcome corrections via corrections.

Country (UNITED STATES) and career milestones on this page are curated for reader context; they should be verified against primary sources when used for research. Editorial metadata for this profile is refreshed on a rolling basis, with deeper audits at least annually (last noted cycle: 2026).

Looking for depth? When available, the dossier and timeline sections below add long-form context beyond the headline number—prioritize those modules when evaluating claims about strategy, controversies, or philanthropic commitments.

The Full Dossier

Early Life and Education

Phillip Terrence "Terry" Ragon was born in Arizona in 1949. Due to his father's career as a U.S. Air Force fighter pilot, Ragon's childhood involved frequent moves across the United States. He spent his senior year of high school in Bogotá, Colombia. He earned a Bachelor of Science degree in physics from the Massachusetts Institute of Technology (MIT) in 1971.

Rise to Success

In 1978, Ragon founded InterSystems Corporation in Cambridge, Massachusetts. Initially, InterSystems focused on database technology. Over time, it expanded into healthcare interoperability solutions, enabling hospitals and other organizations to analyze and integrate large-scale data. Under Ragon's leadership as CEO and owner, the privately held company has become a global leader in the technology industry and generates approximately $1 billion in annual sales.

Key Business Strategies

Ragon's strategy focused on providing data management solutions. InterSystems developed its software solutions utilized across various industries, including healthcare, finance, and logistics. InterSystems' software is used in over 80 countries worldwide.

Philanthropy

In 2009, Ragon and his wife, Susan, co-founded the Ragon Institute of Massachusetts General Hospital (MGH), MIT, and Harvard. In 2019, the Ragons endowed the institute with $200 million. The institute focuses on harnessing the human immune system to develop vaccines and cures for infectious diseases, particularly HIV. In March 2017, the Ragons signed The Giving Pledge, committing to donate at least half of their wealth to philanthropic causes.

Career Timeline

2022

Golden Plate Award

Received the Golden Plate Award from the American Academy of Achievement.

2017

Signed The Giving Pledge

Committed to donating at least half of their wealth to philanthropic causes.

2009

Co-founded the Ragon Institute

Co-founded the Ragon Institute of MGH, MIT, and Harvard, dedicated to researching vaccines and cures for infectious diseases.

1978

Founded InterSystems Corporation

Established InterSystems in Cambridge, Massachusetts, focusing on database technology and healthcare solutions.

Philanthropic Impact

Medical Research$400M

Ragon Institute

Founded the Ragon Institute of Massachusetts General Hospital (MGH), MIT, and Harvard, with a focus on HIV/AIDS research.

PhilanthropyUndisclosed

Giving Pledge

Committed to donating at least half of his wealth to philanthropic causes.

EducationOver $50M

Educational Initiatives

Support for education and research at MIT.

Key Business Ventures & Holdings

CompanyStakeValue
InterSystems Corporation100.00%$3.2M

Net Worth History

In-Depth Analysis

Early Life and Education

Phillip Terrence "Terry" Ragon was born in Arizona in 1949. Due to his father's career as a U.S. Air Force fighter pilot, Ragon's childhood involved frequent moves across the United States. He spent his senior year of high school in Bogotá, Colombia. He earned a Bachelor of Science degree in physics from the Massachusetts Institute of Technology (MIT) in 1971.

Rise to Success

In 1978, Ragon founded InterSystems Corporation in Cambridge, Massachusetts. Initially, InterSystems focused on database technology. Over time, it expanded into healthcare interoperability solutions, enabling hospitals and other organizations to analyze and integrate large-scale data. Under Ragon's leadership as CEO and owner, the privately held company has become a global leader in the technology industry and generates approximately $1 billion in annual sales.

Key Business Strategies

Ragon's strategy focused on providing data management solutions. InterSystems developed its software solutions utilized across various industries, including healthcare, finance, and logistics. InterSystems' software is used in over 80 countries worldwide.

Philanthropy

In 2009, Ragon and his wife, Susan, co-founded the Ragon Institute of Massachusetts General Hospital (MGH), MIT, and Harvard. In 2019, the Ragons endowed the institute with $200 million. The institute focuses on harnessing the human immune system to develop vaccines and cures for infectious diseases, particularly HIV. In March 2017, the Ragons signed The Giving Pledge, committing to donate at least half of their wealth to philanthropic causes.

Data Sources & Methodology

Figures for Phillip T. (Terry) Ragon are synthesized from the sources below and cross-checked against our net worth methodology. Estimates may lag market moves; see corrections to report discrepancies.