American Express Company (American Express) is a global service company. The Company's range of products and services includes Charge and credit card products, Expense management products and services, Consumer and business travel services, Stored value products, such as travelers cheques and other prepaid products, Network services, merchant acquisition and processing, servicing and settlement, and point-of-sale, marketing and information products and services for merchants, and fee services, including market and trend analyses and related consulting services, fraud prevention services, and the design of customized customer loyalty and rewards programs. It operates in four segments: U.S. Card Services, International Card Services, Global Commercial Services (GCS) and Global Network & Merchant Services (GNMS). American Express and its principal operating subsidiary, American Express Travel Related Services Company, Inc. (TRS), are bank holding companies. American Express, also known as AmEx, is an American multinational financial services corporation headquartered in Three World Financial Center, Manhattan, New York City, New York, United States. Founded in 1850, it is one of the 30 components of the Dow Jones Industrial Average. The company is best known for its credit card, charge card, and traveler's cheque businesses. Amex cards account for approximately 24% of the total dollar volume of credit card transactions in the US. BusinessWeek and Interbrand ranked American Express as the 22nd most valuable brand in the world, estimating the brand to be worth US $14.97 billion. Fortune listed Amex as one of the top 20 Most Admired Companies in the World. American Express extended its reach nationwide by arranging affiliations with other express companies (including Wells Fargo – the replacement for the two former companies that merged to form American Express), railroads, and steamship companies.