American Express

American Express is a multinational financial services company specializing in payment cards and banking, headquartered in New York City with roughly 76,800 employees and about 141.2 million cards in circulation worldwide.

The company generated $72.23 billion in revenue in 2025 and ranks as the fourth-largest card network globally by transaction volume, and has expanded into travel services, dining reservations through Resy and Tock, small business financial solutions, and airport lounge access for cardholders.