Warren Buffett and 6 other frat bro CEOs of the Fortune 500 by Benjamin Snyder @FortuneMagazine November 12, 2014, 2:24 PM EST E-mail Tweet Facebook Google Plus Linkedin Share icons Some of the nation’s most powerful men have belonged to fraternities during their school days – business leaders included. For the women, female politicians-in-the-making are no strangers to sororities, although it appears that just two of 26 female CEOs in the Fortune 500 joined the organizations in college. But from Warren Buffett to Douglas Oberhelman, numerous male CEOs in the top 50 companies of Fortune’s elite group of businesses gained leadership skills in fraternities back before achieving business greatness. Here are a few of those stories. The North-American Interfraternity Conference helped provide information for this article.