Alexander C. Karp

Alexander Caedmon Karp (born October 2, 1967) is an American billionaire businessman and entrepreneur. He is the co-founder and CEO of the software firm Palantir Technologies.

Karp earned his J.D. degree from Stanford Law School and a doctorate in social theory from Goethe University Frankfurt. He subsequently worked in finance, founding the investment firm Caedmon Group, where he managed money for clients including wealthy European investors and invested in start-up companies and stocks. At Stanford, he met Peter Thiel and in 2003, they alongside three others co-founded Palantir.

In 2025, his net worth exceeded $18 billion, making him among the wealthiest 200 people in the world as reported by Forbes and the Bloomberg Billionaires Index, and Time magazine named him on the Time 100 list of the world's most influential people of that year.

Alexander Caedmon Karp was born on October 2, 1967 in New York City, the eldest son of Robert Joseph Karp, a Jewish clinical pediatrician, and Leah Jaynes Karp, an African American artist. He grew up with his younger brother, Oliver "Ben" Karp, in Philadelphia.

Like his father, Karp attended Central High School in Philadelphia, graduating in 1985. He said he struggled with dyslexia from an early age. He was influenced by his parents' activism for civil rights and social justice during his youth and went to many protests. He said what he inherited from his maternal side was "a strong affinity to fighting discrimination". Karp stated that "some black people considered me black while some did not", and said, "I view me as me. And I'm very honored to be honored by all groups that will have me." Karp's recent ancestry on the paternal side of the family is from Germany. He said that before he went to Germany, he had underestimated how German his upbringing had been.

Karp initially wanted to be a social theorist. He earned a bachelor's degree in philosophy from Haverford College in Haverford, Pennsylvania, in 1989, then enrolled at Stanford Law School, where he earned a J.D. in 1992. While at Stanford, Karp met Peter Thiel. The two bonded over their exasperation with the law school and a passion for political debates. Thiel recalled that, "He was more the socialist, I was more the capitalist. He was always talking about Marxist theories of alienated labor and how this was true of all the people around us." Karp said that he felt different at "every institution I interacted with".

After his undergraduate studies and law school, Karp earned a Ph.D. in neoclassical social theory from Goethe University Frankfurt, Germany, in 2002. Thiel was the only one who supported his decision to pursue a doctorate at Frankfurt. His doctoral thesis was titled "Aggression in der Lebenswelt: Die Erweiterung des Parsonsschen Konzepts der Aggression durch die Beschreibung des Zusammenhangs von Jargon, Aggression und Kultur" (Aggression in the Lifeworld: The Extension of Parsons' Concept of Aggression by Describing the Connection Between Jargon, Aggression, and Culture). Karola Brede told him he could write the thesis in English, but he replied that it was important to him that he could write it in German. He lived in Frankfurt from the mid-1990s to 2001 and considered staying permanently, but ultimately decided to go back to the U.S. for work.

Karp began a career as a research associate at the Sigmund Freud Institute in Frankfurt. He received an inheritance of $12,000 from his paternal grandfather, with which he founded London-based money management firm Caedmon Group. After he gained some successes with the stock market, some European high-net-worth individuals invested in his company. Karp later claimed that his goal at the time was to amass $250,000 to return to Berlin to read and write as a dilettante, though he failed to explain how it was possible to build "a London-based money management firm" attracting "high net-worth investors" with $12,000.

For some time, he helped Thiel to gather funding for Clarium Capital. In 2004, along with Thiel and others, Karp co-founded Palantir Technologies, becoming its CEO.

The New York Times ranked Karp the highest-paid CEO of a publicly traded company in 2020, the year the company went public, with compensation worth $1.1 billion. In 2024, he was the highest-paid CEO of a publicly traded company in the United States, with a "compensation actually paid" of almost $6.8 billion. The Economist chose Karp, a former director of the publication, as the 2024 CEO of the Year.. He is also co-managing director at Frankfurt-based Palantir Technologies Gmbh, and sits on the board of Palantir Technologies UK Ltd.

According to Steinberger, Karp had no previous technical or business training, but his background in philosophy helped with understanding ethical or political concerns. Karp criticizes companies like Google and Facebook for their attitude to data protection. Facebook became the foil against which Palantir defined its identity; when Palantir expanded in Palo Alto and took over a former Facebook office, they painted over a famous wall associated with Facebook. Among Palantir leadership, there were differences in philosophy, with Thiel complaining about Karp always choosing the hard, complex way when a more straightforward path might have sufficed. Despite this, Thiel largely left the operation of the company in Karp's hands.

In 2024, Karp was 1143rd on the Forbes annual World's Billionaires List with a net worth of $2.9 billion. In 2025 his net worth at times exceeded $18 billion, ranking him among the 200 wealthiest people in the world on the Forbes Real-Time Billionaires List and the Bloomberg Billionaires Index.

In 2025 Time magazine listed Karp as one of the world's 100 most influential people, calling him "the embodiment of a new kind of Silicon Valley billionaire: an unashamed techno-nationalist who evangelizes Western power". In naming him to the Time 100 list, the magazine noted that Karp had once quoted Samuel P. Huntington's The Clash of Civilizations in a letter he wrote to investors: "The rise of the West was not made possible 'by the superiority of its ideas or values or religion ... but rather by its superiority in applying organized violence. [...] Westerners often forget this fact; non-Westerners never do.'" During a New York Times interview, Karp said that "you scare the crap out of your adversaries", asking, "Are we tough enough to scare our adversaries so we don’t go to war? Do the Chinese, Russians and Persians think we’re strong?" Maureen Dowd, a journalist, said the interview was "brim[ming] with American chauvinism".

In 2024 The New York Times again quoted Karp, who said that he and his company, Palantir, had "a consistently pro-Western view, that the West has a superior way of living and organizing itself". In the same interview, Karp said that the US would very likely face a three-front war against China, Russia, and Iran in the future. He opined that the best way to prepare for such a war would be developing autonomous weapons. In Karp's opinion, the West and the China-Russia-Iran axis were at technological parity. However, he added, the West had a disadvantage when it came to moral disparity because the West would likely not use nuclear weapons, although their adversaries might. He also told the Times that he favored military conscription.

In 2018, Karp said he is a socialist and a progressive ("but not woke"). In addition he said he voted for Hillary Clinton. In 2024, the Financial Times identified Karp as "a major Biden donor". Current Affairs editor Nathan J. Robinson wrote in 2024 that Karp "seems to have some idiosyncratic personal definition in mind that has nothing in common with the socialist tradition". In 2024, Karp said that while he was "not thrilled" with the direction of the Democratic Party, he would still be "voting against Trump". That same year, he called for the Democrats to project more strength. He has also protested open-border immigration policies in the U.S. and Europe: "You have an open border, you get the far right. [...] And once you get them, you can't get rid of them." In 2025, he said that he views himself as a "classic [sic] liberal".

In a November 2025 interview with Wired, he said that to a family member that disagreed with him in a private conversation, "I would be pointing out that Trump’s decisions on AI, and his decisions on the Middle East, are very different than people in the Democratic Party would have made, and very good." Also, he would consider the Democratic Party to have left him if the Zohran Mamdani wing took over, which he viewed as the result of "[the] role played [by] universities and elite institutions [that are] teaching pagan religion views", describing one "[portraying an] AI-driven, AGI environment where no one has a job [because] labor is going to be valueless".

Interviewed by his biographer Michael Steinberger (whose book The Philosopher in the Valley: Alex Karp, Palantir, and the Rise of the Surveillance State was published in November 2025), Karp cites the Democrats' unresponsiveness to immigration, Iran and attitude to antisemitism ("They talk all the time about racism but won't talk about antisemitism") as reasons for his disillusion with the party. Steinberger remarks that Karp was particularly concerned about the anti-Israel protests that erupted after the October 7 attacks in Israel.

Karp lives in Lyman, New Hampshire, and owns 11 houses around the world. In a 2024 interview he described himself as Jewish, commenting (after being asked) in another interview that while his background informed Palantir having Israel as a client, he did not believe it expressly did so. In June 2026, Süddeutsche Zeitung reported that Karp is building a house on a 6,000-square-meter plot in Schaan, Liechtenstein, and suggests that he is now a long-term resident in the country (he first moved to Liechtenstein from Switzerland on November 8, 2022), considering the privileges he has received despite Liechtenstein's very strict residental regulations. Officials have refused to discuss the issue despite press inquiries.

As of 2025, Karp is in long-term relationships with two women. He was described as "geographically monogamous".

Karp is the subject of the 2024 German documentary film Watching You: The World of Palantir and Alex Karp, directed by Klaus Stern, which explores Palantir's influence and Karp's career, including interviews with former colleagues, politicians, and critics; Karp chose not to participate in the documentary.

Karp, with co-author with Nicholas Zamiska, published The Technological Republic: Hard Power, Soft Belief, and the Future of the West in February 2025. The book offers a critical perspective on what it deems Silicon Valley's complacency and the West's waning ambition, arguing that the software industry must partner with government to tackle urgent challenges, particularly the AI arms race.