Still On Top: Eight Of The Longest-Serving CEOs

Being a company's chief executive officer can be a very mixed blessing. Along with the power comes not only the burden of responsibility, but the realization that, in most cases, your position at the top depends on ensuring continued profits, prosperity and achievement.

"The length of CEOs' terms often correlates with their level of success,” Dr. Leslie Gaines-Ross, with the global public relations firm Weber Shandwick, said several years ago. A study by Weber Shandwick noted that, in North America, the average tenure of a departing CEO was eight and a half years – compared to 6.5 years for European CEOs and four years, three months for CEOs in the Asia Pacific.

Given those figures, here are eight CEOs who are remarkable – not only for their accomplishments, but for also holding on to their jobs for a decade or, in some cases, much longer: