['08 rank - #5]
Even amidst the financial meltdown of 2008 and the ongoing recession, energy is still a huge concern for many Americans and a topic that is still the focus of intense public and media scrutiny. As the world's largest publicly traded energy company, ExxonMobil is constantly in the middle of that ongoing conversation, and it's Cohen's job to ensure that the company's position on everything from gas prices to global warming is properly communicated. With the Obama administration devoting significant resources to finding alternative energy sources, companies such as ExxonMobil will only be further thrust into the spotlight. Cohen's experience and status within the company will be a tremendous asset as it moves forward to address new challenges. He also serves as the chairman of the ExxonMobil Foundation.