Constantine P. Iordanou Death & Obituary: Former chairman and chief executive officer of Arch Capital Group has Passed Away

Constantine “Dinos” Iordanou, chairman of Vantage Group Holdings Ltd. and a veteran in the insurance industry, passed away on Sunday at the age of 74. Known for his extensive career in commercial insurance, Mr. Iordanou held senior executive roles at several prominent companies, including a notable 17-year tenure at Arch Capital Group Ltd. before retiring in 2018.

Who Was Constantine P. Iordanou?

Born in Cyprus, Mr. Iordanou emigrated to the United States, where he graduated from New York University with a degree in aerospace engineering. He began his career at American International Group Inc. (AIG) in New York, eventually rising to senior vice president at its American Home Assurance Co. unit. In 1987, he joined Berkshire Hathaway Inc. as head of its commercial casualty operations. By 1992, he had moved to Zurich American Insurance, where he served as president of its specialties unit and later as senior executive vice president of group operations for Zurich Insurance Group.

Arch Capital Group, reorganized from its predecessor company Risk Capital Reinsurance Co., recruited Mr. Iordanou as president in 2001. He was named CEO in 2003 and chairman in 2009. In recognition of his leadership and contributions to the industry, St. John’s University’s Maurice R. Greenberg School of Risk Management, Insurance, and Actuarial Science named him Insurance Leader of the Year in 2017.

Contributions to the Insurance Industry

After retiring from Arch in 2018, Mr. Iordanou continued to influence the insurance world. In 2020, he co-launched Bermuda-based insurer and reinsurer Vantage with CEO Greg Hendrick. Arch CEO Marc Grandisson lauded Mr. Iordanou’s impact, stating: “Not only was [Mr. Iordanou] an insurance industry legend, but his leadership, tenaciousness, and larger-than-life personality influenced both me and the company in many ways. We’ve lost a great man. He will be deeply missed.”

David Siesko, former chief claims officer for Arch, emphasized Mr. Iordanou’s respect and support within the claims industry. “Dinos stood behind his claims people. He was always tough on strategy, but once a strategy was decided upon, even if it didn’t work, there was never any finger-pointing or second-guessing. This was a big change in the industry,” Siesko noted.

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Legacy and Personal Life

Beyond his professional achievements, Mr. Iordanou was also a board member of Verisk Analytics Inc. and served as the senior independent director of the Bank of Cyprus. He was a passionate supporter of Broadway and West End theater productions and had recently been involved in efforts to finance a new stadium for the Cypriot soccer team APOEL Nicosia.

Mr. Iordanou is survived by his wife, Marianne, and their three daughters.


Constantine “Dinos” Iordanou’s passing marks the loss of a towering figure in the insurance industry. His leadership, strategic vision, and supportive nature left an indelible mark on those he worked with and the companies he led. His legacy will be remembered by his colleagues, friends, and the many professionals he mentored throughout his illustrious career.