Philippe M. Costeletos

Background

Philippe M. Costeletos was born on June 20, 1965, in New York City. He is the son of Marinos Costeletos and Marianna Lambropoulou. His professional life has developed across American and European investment markets, with substantial work in London and international private equity.

Education

Costeletos studied mathematics at Yale University, graduating in 1987 with a Bachelor of Arts degree, distinction, and magna cum laude honors. Yale, founded in 1701, is a major American research university whose residential liberal-arts tradition includes advanced study in mathematics and the sciences.

He received a Master of Business Administration from Columbia University in 1991 and was associated with Beta Gamma Sigma. Columbia Business School is a leading graduate business school in New York City, closely connected with the city's financial and international business institutions.

Career

Costeletos began his investment career at Morgan Stanley, working as an analyst in New York and London from 1987 to 1989. Morgan Stanley was then a major global investment bank with extensive capital-markets and corporate-finance operations in both financial centers.

From 1991 to 1995, he was vice president at JPMorgan Capital, where his work included private-equity investments across Europe and Latin America. JPMorgan Capital formed part of the broader J.P. Morgan financial organization, whose international banking and investment activities connected institutional capital with companies and markets around the world.

Costeletos joined Investcorp in 1995 and served on its Management Committee until 2003. Investcorp, founded in Bahrain in 1982, became an international alternative-investment firm known for private-equity, real-estate, and other investment activities. During this period, Costeletos was involved in buyouts in Switzerland, Norway, the Netherlands, and the United Kingdom.

In 2003 he joined Texas Pacific Group, now known as TPG, becoming a partner and later Head of Europe and a member of the firm's Global Management and Investment Committees. TPG is a global private-investment firm established in 1992; its European operations focused on investing in and developing companies across multiple industries. Costeletos also served as chairman or director of companies including TIM Hellas, Debenhams, Myer, and other portfolio businesses.

Costeletos later worked in international leadership at Colony Capital and served as a Senior Advisor to Blackstone. Colony Capital was an investment-management firm with major interests in real estate and related assets, while Blackstone is a global alternative-asset manager. He founded Stemar Capital Partners, a private investment firm focused on long-term investment platforms.

Since 2017, Costeletos has served on the board of RIT Capital Partners, becoming its chairman in May 2025. RIT Capital Partners, originally associated with the Rothschild investment tradition, is a publicly traded investment trust with a globally diversified portfolio. He has also chaired Zeno Partners and Tambre Reproductive Medicine and served on the boards of AutoHellas, Colosseum Dental Group, and Vangest Group.

Costeletos has held governance responsibilities at Yale University, including service connected with the university's trustees and investment activities. Yale's governing boards oversee one of the oldest and most internationally prominent American universities and its endowment.

Achievements

• Costeletos developed a more than three-decade career in private investment and international investment management, progressing from analyst and private-equity roles to senior leadership at Investcorp, TPG, Colony Capital, Blackstone, and Stemar Capital Partners.

• He has contributed to corporate governance through chairmanships and board service at investment, healthcare, telecommunications, retail, automotive, and dental-care companies.

Membership

Costeletos has participated in Yale University and Yale alumni organizations, including the Yale Alumni Association and the President's Council on International Activities. He has also been associated with Beta Gamma Sigma, the international business honor society, and advisory work connected with Yale's Center for Emotional Intelligence.

• Yale Alumni Association , United States

• Trustee and member of the Investment Committee.

  Yale University , United States

• President's Council on International Activities , United States

• Advisory board member.

  Yale Center for Emotional Intelligence Advisory Board , United States

• Beta Gamma Sigma , United States

  1991 - present

Interests

• Art collecting; scuba diving.

• Sport & Clubs

  Skiing

Connections

Costeletos is married to Katerina Flenga. They have two children, Marianna and Stefanos. His parents are Marinos Costeletos and Marianna Lambropoulou.

Father:

Marinos Costeletos

Mother:

Marianna Lambropoulou

Spouse:

Katerina Flenga

child:

Stefanos Costeletos

child:

Marianna Costeletos

References

• RIT Capital Partners: Philippe Costeletos Official profile documenting Costeletos's chairmanship of RIT Capital Partners, prior work at Blackstone, Colony Capital, TPG, Investcorp, JPMorgan Capital, and Morgan Stanley, and his Yale and Columbia education.
• Yale University: Philippe Costeletos '87 Yale profile documenting Costeletos's private-investment career, leadership roles, university service, and degrees in mathematics and business administration.
• Colony Global Acquisition Corp. Registration Statement Corporate filing documenting Costeletos's roles at Colony Capital, TPG, Investcorp, JPMorgan Capital, and Morgan Stanley, as well as his board experience and education.
  2016
• Troy GAC SEC Filing SEC filing documenting Costeletos's position as a partner at Texas Pacific Group, prior service at Investcorp, JPMorgan Capital, and Morgan Stanley, citizenship information, and university degrees.
  2005