Celebrity net worth, reported honestly — figures, sources and the stories behind the money.

Peter Diamandis Net Worth

Entrepreneur · More Stars

Peter Diamandis
Photo: Brassfield · Wikimedia Commons · CC BY-SA 4.0
Net Worth · StarWorth Figure
$200M
Source: Celebrity Net Worth (October 2026) · USD · Last updated 28 October 2026

Quick facts

Born1961

ProfessionEntrepreneur

NationalityAmerican

CategoryMore Stars

Background and career

Peter H. Diamandis ( DEE-ə-MAN-diss; born May 20, 1961) is a Greek-American engineer, physician, and entrepreneur. He is best known as the founder and chairman of the XPRIZE Foundation, and the cofounder and executive chairman of Singularity University. He is also cofounder and former CEO of the Zero Gravity Corporation, cofounder and vice chairman of Space Adventures Ltd., founder and chairman of the Rocket Racing League, cofounder of the International Space University, cofounder of Planetary Resources, cofounder of Celularity, founder of Students for the Exploration and Development of Space, and vice chairman and cofounder of Human Longevity, Inc.

Diamandis was born in the Bronx, New York City, to Greek immigrants. At age 12, Diamandis won first place in a rocket design competition. After graduating from Great Neck North High School in 1979, Diamandis attended Hamilton College for his first year, then transferred to the Massachusetts Institute of Technology to study biology and physics. During his second year at MIT in 1980, he cofounded Students for the Exploration and Development of Space. Diamandis graduated from MIT in 1983 and entered Harvard Medical School to pursue his MD through the Harvard–MIT Program in Health Sciences and Technology. During his second year of medical school, he cofounded the Space Generation Foundation to promote projects and programs that would help the "Space Generation"—all those born since the flight of Sputnik—get off the planet. In 1986, Diamandis put his medical degree on hold and returned to MIT to pursue a master's degree in aeronautics and astronautics, conducting research at NASA Johnson Space Center, the MIT Man Vehicle Laboratory and MIT's Whitehead Biomedical Institute. After completing his M.S. at MIT, Diamandis returned to Harvard to complete his M.D. During his last year of medical school in 1989, Diamandis acted as managing director of the International Space University and CEO of International Micro Space, a microsatellite launch company.

Diamandis has founded over 25 companies in the areas of longevity, space, venture capital, and education.

In 1987, during his third year of medical school, Diamandis cofounded International Space University with Todd Hawley and Robert Richards. Diamandis served as the university's managing director and chief operating officer until 1989. Today, ISU offers a Space Studies program and two accredited Master of Space Studies degrees. Its $30 million campus is headquartered in Strasbourg, France.

Diamandis cofounded Microsat Launch Systems, later renamed International MicroSpace Inc., in 1989 during his fourth year of medical school and served as the company's CEO. IMI designed a small launcher called Orbital Express (later renamed "ORBEX") for taking 100-kg payloads to low-Earth orbit, collaborating with Bristol Aerospace for the manufacture. The company won a $100 million SDIO contract for one launch plus nine options and was sold to CTA Inc of Rockville, MD in 1993 for $250,000. Diamandis joined CTA for one year as VP of Commercial Space Programs post-acquisition. The ORBEX contract was eventually canceled "because of a glut of small launchers," and CTA put the project on hold and eventually canceled the project.

In 1991, Diamandis founded Constellation Communications, Inc., one of five low-Earth orbit satellite constellations for voice telephony. The company planned to deploy an equatorial ring of 10 satellites to provide communications primarily to Brazil and Indonesia. Diamandis remained director until 1993, when it was acquired by Angel Technology. Between 1995 and 1999, Diamandis was the president of Angel Technologies Corporation, a commercial communications company that intended to develop wireless broadband communications networks based on a high-altitude aircraft.

Sources

Net-worth figure: Celebrity Net Worth (October 2026), in USD. Biography and career facts: the person's Wikipedia article and linked reporting. Snapshot date for all StarWorth figures: 28 October 2026.

See something wrong? StarWorth corrects profiles when readers flag an error. Send corrections with a source link to [email protected].

Related profiles

Vlad Tenev
Photo: Pierce Larick · Wikimedia Commons · CC BY-SA 4.0
More Stars

Vlad Tenev

$650B

Entrepreneur

Mansa Musa
Photo: attributed to Abraham Cresques · Wikimedia Commons · Public domain
More Stars

Mansa Musa

$400B

Mansa

Alan Rufus
Photo: Unknown authorUnknown author · Wikimedia Commons · Public domain
More Stars

Alan Rufus

$180B

Feudatory

Alexander Turney Stewart
Photo: Unknown authorUnknown author · Wikimedia Commons · Public domain
More Stars

Alexander Turney Stewart

$90B

Entrepreneur

← Back to the directory · More More Stars