Constantine Iordanou

Since Iordanou became CEO in November 2009 (he had already been at the company for years before that), Arch Capital’s stock has enjoyed a premium 230% rise (vs. 100% for the S&P 500 during the period.) Iordanou has expanded and diversified the portfolio of this Bermuda-based insurer and re-insurer, adding lines such as private mortgage insurance. He’s not done yet: Iordanou has told reporters that the company is always “looking for other avenues to grow,” citing areas such as reinsurance for mortality-only life insurance. Iordanou knows a little about risk first-hand: The son of a police officer in Cyprus, according to Risk & Insurance, he came to the U.S. on his own by ship and worked his way through New York University, then learned the insurance ropes at AIG and then Berkshire Hathaway.