American Express Credit Card

American Express, often abbreviated as Amex, is a multinational financial services corporation headquartered in New York City. Founded in 1850, it is renowned for its charge card, credit card, and traveler's cheque businesses. The company's iconic Blue Box logo, introduced in 1974, features the brand name in bold blue uppercase lettering with thick white outlines on a blue square background. In 2018, American Express unveiled a redesigned version of its logo, created by Pentagram, which removed the radial gradient effect and made subtle typographic adjustments for improved legibility across digital platforms. (pentagram.com) As of 2025, American Express remains an independent company, with no known subsidiaries owning the brand locally.