
Almost 10% of the companies on this year’s Fortune 500—49 in all—have made our list of America’s biggest businesses by revenue every year since its first edition, in 1955. All 49 are highlighted in these graphics, which also show their size relative to other Fortune 500 companies.
The 70-Year Club is nothing if not diverse. (Pfizer, maker of Viagra, meet Hormel, maker of Spam.) But a few themes emerge from a closer look at these corporate endurance athletes. Among them: