Johnny Ho, cofounder and chief strategy officer of Perplexity, helps lead product at the AI search company. Before Perplexity, he worked as a high-frequency trader at Tower Research Capital and as an engineer at Quora. A Harvard math and computer science graduate, Ho was also a three-time gold medalist at the International Olympiad in Informatics, ranking first in the world in 2012 with a perfect score.

Daniel Nadler, founder and CEO of OpenEvidence, has emerged as one of the standout entrepreneurs of the AI era by building a platform that applies large language models to clinical decision-making and medical research. A former academic and founder of Kensho Technologies, which was acquired by S&P Global for $550 million, he has repeatedly operated at the intersection of artificial intelligence and high-value information systems. With OpenEvidence’s rapid growth among physicians, Nadler has become a major figure in AI-driven healthcare infrastructure.

Adarsh Hiremath, cofounder and CTO of Mercor, has emerged as one of the youngest billionaires of the AI era after helping build the company into a fast-rising platform that connects expert talent with AI labs and enterprises. Launched in 2023 with Brendan Foody and Surya Midha, Mercor sits at the intersection of recruiting, human expertise, and artificial intelligence, as companies use specialized professionals to train and evaluate advanced models. Known for a low public profile and deep technical role, Hiremath has become one of the standout new fortunes of the AI boom.

Gerry Cardinale, founder and managing partner of RedBird Capital Partners, has built one of the most influential private investment firms at the intersection of sports, media, entertainment, and financial services. A former Goldman Sachs partner, he launched RedBird in 2014 and expanded it into a firm managing about $14 billion, with high-profile bets tied to brands and platforms such as Fenway Sports Group, AC Milan, Skydance, and YES Network. Known for strategic dealmaking and a sharp eye for culturally powerful assets, Cardinale has become one of the standout financiers in modern sports and media investing.

Karim Atiyeh, cofounder and CTO of Ramp, has helped build one of fintech’s fastest-rising platforms by turning corporate spend management into a software and automation engine for modern businesses. After previously cofounding Paribus with Eric Glyman, he launched Ramp in 2019 and played a central role in shaping the company’s technology across cards, expense management, bill pay, and AI-driven financial operations. Known for deep technical focus and product rigor, Atiyeh has emerged as one of the key architects behind Ramp’s rapid ascent.

Gene Lee, Ramp cofounder and head of growth engineering, helped build one of fintech’s fastest-rising companies by turning corporate spend management into a software-driven efficiency engine. After previously helping launch Paribus with Eric Glyman and Karim Atiyeh, he joined them again at Ramp in 2019, where the company grew into a major finance platform spanning corporate cards, expense management, bill pay, and automation. Known for his product and engineering focus, Lee has been part of a founding team that reshaped how modern businesses manage spending.

Eric Glyman, cofounder and CEO of Ramp, has emerged as one of fintech’s fastest-rising founders by building a finance automation platform designed to save businesses both time and money. After previously cofounding Paribus, which was acquired by Capital One, he launched Ramp in 2019 and helped scale it into one of the most valuable private fintech companies, spanning corporate cards, expense management, bill pay, and AI-powered financial operations. Known for product intensity and a contrarian focus on customer savings rather than rewards, Glyman has become a defining figure in the new era of business finance.

Jared Kaplan, cofounder and chief science officer of Anthropic, has become one of the central technical figures in the generative AI boom, helping build the company behind Claude into a major force in large language models. A theoretical physicist by training and former OpenAI researcher, he is known for influential work on the scaling behavior of AI systems and for pairing frontier model development with a strong emphasis on safety and governance. As Anthropic’s influence has expanded, Kaplan has emerged as one of the key scientists shaping the next era of artificial intelligence.

Rick Smith, founder and CEO of Axon Enterprise, has spent more than three decades turning a garage startup into the dominant force in public safety technology. After launching the company in 1993, he expanded it far beyond TASER devices into body cameras, digital evidence software, and a broader mission-driven platform built around protecting life and, in his words, making bullets obsolete. With Axon now a central player in law enforcement technology, Smith has become one of the most consequential entrepreneurs in the intersection of hardware, software, and public safety.

Stuart Miller, executive chairman and co-CEO of Lennar, has spent more than four decades helping build the company into one of America’s largest homebuilders. The son of early Lennar investor Leonard Miller, he led the firm through major expansion cycles and helped shape its evolution beyond homebuilding into financial and real estate-related services. Known for long-term strategic control and deep influence over the business, Miller remains one of the most prominent figures in U.S. residential real estate.

Vivek Ramaswamy, biotech entrepreneur, investor, and political figure, founded Roivant Sciences and built his fortune by acquiring and developing overlooked drug assets through a distinctive biotech platform. He later cofounded Strive Asset Management and gained national prominence during his 2024 presidential bid, extending his influence from finance and healthcare into public life. Known for his sharp rhetoric, high-risk conviction, and outsider brand, Ramaswamy has emerged as one of the most visible figures linking biotech wealth, capital markets, and conservative politics.

Jean-Marc Chapus, cofounder and managing partner of Crescent Capital, helped build one of the most established private credit firms in the market by focusing on below-investment-grade debt, private equity-backed financing, and disciplined risk management. A former leveraged finance banker at Drexel Burnham Lambert and later a senior executive at TCW, Chapus co-founded Crescent in 1991 and played a central role in shaping its investment philosophy across private and tradeable credit. Under his leadership, Crescent grew into a globally recognized credit platform managing tens of billions of dollars and became a key capital partner to private equity sponsors and growth companies.

Philip Falcone, founder of Harbinger Capital Partners, rose to prominence as one of the most aggressive hedge fund managers of the financial-crisis era, making billions by shorting subprime mortgages before turning to large, high-stakes bets in distressed debt and telecom. A former Harvard hockey player turned Wall Street trader, he built Harbinger into a multibillion-dollar fund known for concentrated, contrarian investing, though his later career was marked by regulatory scrutiny and the costly collapse of LightSquared. Falcone remains a memorable figure in hedge fund history for pairing extraordinary conviction with extraordinary volatility.

William Randolph Hearst III is chairman of Hearst, one of the largest privately held media and information companies in the world, spanning television, publishing, data, and digital businesses. A grandson of founder William Randolph Hearst, he has played a central role in modernizing and stewarding the family-controlled enterprise while maintaining its long-term private ownership structure. Earlier in his career he was active in venture investing and philanthropy, including leadership roles within the Hearst Foundations. Known for low-profile governance and multigenerational stewardship, Hearst represents the modern continuation of one of America’s most enduring business dynasties.

Bill Ackman, founder and CEO of Pershing Square Capital Management, is one of the most prominent activist investors of his generation, known for high-conviction, concentrated bets on public companies. Since launching Pershing Square in 2004, Ackman has pursued large stakes in companies where he believes operational, strategic, or governance changes can unlock substantial shareholder value. His career has included both high-profile wins and costly missteps, reinforcing his reputation for bold, research-driven investing. Beyond markets, Ackman is active in philanthropy and public policy, frequently engaging in debates on corporate governance and economic reform.

Timothy Springer is the Latham Family Professor at Harvard Medical School and a billionaire biotech pioneer known for his foundational work in immunology. He discovered the first integrins and adhesion molecules (ICAMs), discoveries that led to blockbusters like Entyvio and Raptiva. A founding investor in Moderna, he famously turned a $5 million stake into billions, cementing his status as one of the world's wealthiest academics. In 2026, he continues to lead the Institute for Protein Innovation (IPI), a legacy nonprofit he endowed with $210 million to advance open-source protein research. Recently, he was elected a Fellow of the National Academy of Inventors and made headlines for his massive $61 million investment in Tectonic Therapeutic. Beyond science, he is an avid collector of gongshi (Chinese scholar's rocks).

Tom Werner is the chairman of Fenway Sports Group (FSG) and a legendary television producer behind iconic sitcoms like The Cosby Show and Roseanne. As chairman of both the Boston Red Sox and Liverpool FC, he has overseen a period of historic success, including four World Series titles and multiple international soccer trophies. In 2026, he continues to navigate the complexities of modern sports ownership, recently addressing the Red Sox's "dry powder" payroll strategy and roster changes during spring training. A dedicated philanthropist, he spearheaded the creation of the Red Sox Foundation and the Home Base Program, which has provided clinical care to over 30,000 veterans and their families.

Thomas James is the Chairman Emeritus of Raymond James Financial, where he served as CEO for forty years, transforming his father's regional brokerage into a global financial powerhouse. A graduate of Harvard and Stetson University, he is the architect of the firm's "client-first" culture and long-term conservative growth strategy. Although he retired from the board in 2024, he remains a vital mentor to the leadership team during the 2026 transition of Paul Shoukry to CEO. A renowned philanthropist and art collector, he founded the James Museum of Western & Wildlife Art in St. Petersburg, Florida, cementing his legacy as a titan of both finance and regional culture.

Robert Ziff, co-head of Ziff Brothers Investments, is part of one of America’s most prominent private investment families, managing multibillion-dollar wealth built from the publishing legacy of Ziff Davis. Alongside his brothers, Ziff oversees a diversified portfolio spanning hedge funds, private equity, real estate, and opportunistic investments, operating with a low public profile and institutional-grade discipline. Known for long-term capital allocation and discreet influence, he represents the modern evolution of a media fortune into a sophisticated global investment operation.

Paul Singer, founder and CEO of Elliott Investment Management, is one of the most influential activist investors in the world, known for combining deep legal expertise with relentless capital discipline. Since launching Elliott in 1977, Singer has built a multibillion-dollar firm that targets complex situations across public equities, debt, and sovereign restructurings, often pushing for governance reform and value realization. His campaigns have reshaped outcomes at major corporations and governments alike, cementing Elliott’s reputation for rigor, persistence, and results. Beyond investing, Singer is a prominent political donor and philanthropist focused on free markets, democracy, and human rights.