As America prepares to celebrate its 250th birthday, a handful of its largest companies are marking a different kind of milestone: histories that stretch back nearly to the nation’s founding—or even before it existed.
Among the recently-released 2026 Fortune 500—a ranking of the largest U.S. corporations based annual revenue—several firms trace their roots to the 18th century. The Bank of New York (BNY) traces its roots to 1784, while Cigna Group and State Street Corporation followed in 1792, as the newly formed republic was beginning to build its financial and corporate systems.