PepsiCo, Inc. is an American multinational food, snack, and beverage corporation headquartered in Harrison, New York, in the hamlet of Purchase.

The company has its orgins in the development of the soft drink Pepsi-Cola in 1898 by pharmacist Caleb Bradham (1867-1934), who sold the beverage from his pharmacy in New Bern, North Carolina. Bradham then founded the Pepsi-Cola Company in 1902 and registered a patent for his recipe in 1903. The company was incorporated in 1919. Bradham's company experienced years of success leading up to World War I. However, sugar rationing during the war and a volatile sugar market in the war's aftermath damaged the company's financial health to such a degree that in 1923, Bradham declared bankruptcy and returned to running pharmacies in North Carolina. The company trademark and secret recipe were purchased by Craven Holding Corporation.

In 1931, Wall Street broker Roy Megargel (1877-1935) purchased the Pepsi trademark, business, and goodwill from Craven Holding in association with Charles Guth (1877-1948), president of candy manufacturer Loft, Incorporated. Guth used Loft's labs and chemists to reformulate the Pepsi syrup recipe, and he used his position as president of the company to replace Coca-Cola with Pepsi Cola at Loft's shops and restaurants. Guth also moved the soda company to a location close to Loft's own facilities in New York City.

In 1935, the shareholders of Loft sued Guth for his ninety-one-percent stake of the Pepsi-Cola Company. Loft won the suit and in 1941 formally absorbed Pepsi into Loft, which was then re-branded as the Pepsi-Cola Company that same year. Loft restaurants and candy stores were spun off at this time.

In 1965, the Pepsi-Cola Company merged with Frito-Lay, Inc. to become PepsiCo, Inc. Between the late 1970s and the mid 1990s, PepsiCo expanded via the acquisition of businesses outside of its core focus; however, it exited these non-core business lines largely in 1997, selling some, and spinning off others into a new company that became known as Yum! Brands, Inc. PepsiCo purchased the orange juice company Tropicana Products in 1998, and merged with Quaker Oats Company in 2001.

In 2010, PepsiCo acquired the two largest bottlers of its products in North America: Pepsi Bottling Group and PepsiAmericas, resulting in the formation of a new wholly owned subsidiary, Pepsi Beverages Company. A string of aquisitions has characterized the company's growth in the years since.