Lloyd Blankfein became CEO and chairman of Goldman Sachs in 2006, after 25 years at the company. Blankfein's tenure hasn't exactly been an easy one. He guided Goldman Sachs through the 2009 financial crisis and weathered charges that the investment firm helped mask the severity of Greece's national debt for over a decade. Mr. Blankfein continues to maintain employees' confidence. In 2015, he garnered an approval rating of 95 percent, placing him seventh on Glassdoor's list.

Gary Cameron/Reuters/File
Goldman Sachs Chairman and CEO, Lloyd Blankfein, waits to speak at the 10,000 Women/State Department Entrepreneurship Program at the State Department in Washington, in this March 9, 2015, file photo.