USPages.com maintains a list of the Fortune 500 companies with a link to a telephone number for each company. The contact information also includes corporate websites, headquarters addresses and stock symbols. Individual corporate websites list preferred methods of contact information, including corporate phone numbers not listed at USPages.com
The Fortune 500 is a list published every year by Fortune magazine of the 500 largest American corporations according to revenue. The list, which contains public and private companies, was first published in 1955. Due to favorable tax structure, more than half of these companies are headquartered in the state of Delaware.