Billionaire Profile
Adebayo Ogunlesi
Global Rank
#1626

Image: Public domain | via Wikimedia Commons

Adebayo Ogunlesi

CEO, Global Infrastructure Partners (GIP)
US
Real-Time Net Worth
$2.3B
As of December 2025
Age
71
Source
Private Equity
Industry
finance-investments
Citizenship
US

Biography

Adebayo "Bayo" Ogunlesi (born December 20, 1953) is a Nigerian-American billionaire lawyer, investment banker, and private equity executive. He is best known for founding and leading Global Infrastructure Partners (GIP), a leading infrastructure investment firm. His wealth source is private equity. Ogunlesi's career includes senior positions at Credit Suisse, and currently serves as the Chairman and CEO of GIP, which BlackRock acquired in 2024. As of January 2025, his net worth is approximately $2.3 billion, making him one of the wealthiest individuals in the world. He has had a transformative impact on global infrastructure investment.

Wealth Over Time

In-Depth Profile

Early Life and Education

Adebayo Ogunlesi was born in Sagamu, Ogun State, Nigeria, on December 20, 1953. He comes from a Yoruba family with a strong academic background; his father was the first Nigerian professor of medicine. Ogunlesi attended King's College, Lagos, for his secondary education before moving to the United Kingdom to study at Oxford University. There, he earned a B.A. with first-class honors in Philosophy, Politics, and Economics. In 1979, he received a J.D. magna cum laude from Harvard Law School and an MBA from Harvard Business School.

Rise to Success

Ogunlesi began his career as a law clerk to Associate Justice Thurgood Marshall of the U.S. Supreme Court from 1980 to 1981. He later worked as an attorney at Cravath, Swaine & Moore in New York City. In 1983, he transitioned into investment banking, joining First Boston (later Credit Suisse First Boston) as an advisor on a Nigerian gas project. He climbed the ranks at Credit Suisse, becoming the Head of Global Investment Banking and later, Chief Client Officer and Executive Vice Chairman. In 2006, Ogunlesi co-founded Global Infrastructure Partners (GIP) with a team of investors.

Key Business Strategies

GIP focused on infrastructure investments in the energy, transport, digital infrastructure, and water and waste management sectors. GIP's approach involved proprietary origination, operational improvements, and timely exits, which drove its success. GIP’s strong performance led to its acquisition by BlackRock in January 2024 for $12.5 billion.

Philanthropy

While specific amounts are not readily available, Ogunlesi has supported various educational and philanthropic initiatives, reflecting his commitment to giving back to society and contributing to the development of communities.

Career Milestones

1979

Earned JD-MBA

Received a Juris Doctor degree (magna cum laude) from Harvard Law School and a Master of Business Administration from Harvard Business School.

1980-1981

Law Clerk

Served as a law clerk to Associate Justice Thurgood Marshall of the United States Supreme Court.

1983

Joined First Boston

Joined First Boston (later Credit Suisse First Boston) as an advisor on a Nigerian gas project.

2002

Head of Global Investment Banking

Appointed Global Head of Investment Banking Division at Credit Suisse First Boston.

2006

Founded GIP

Cofounded Global Infrastructure Partners (GIP).

2024

BlackRock Acquisition

GIP was acquired by BlackRock.

Philanthropy & Social Impact

Philanthropy

Various

Undisclosed

Supports educational and philanthropic causes.

Business Philosophy & Leadership

Notable Quotes

"“Infrastructure is about leadership, not just capital. If you get leadership right, everything else falls into place.”"

"“Professional success is about ability, hard work, and relationships.”"

"“As long as you work hard and you study and do your best, you always have to be satisfied, because, no matter how smart you are, there's always going to be somebody who's smarter than you… You have to be happy with yourself and who you are and what you are.”"

Leadership Principles

Leadership is about sacrifice.

Leaders are willing to make sacrifices.

Embrace Opportunities and Risks

Be open to taking risks when opportunities arise.

Humility in Leadership

Be serious about your work but don't take yourself too seriously.