PG

Procter & Gamble Co

A maker of everyday household goods, Procter & Gamble sells brands like Tide, Pampers, Gillette, and Head & Shoulders in about 180 countries through stores and online. It began in 1837 when Cincinnati's candle-maker William Procter and soap-maker James Gamble — who married sisters — merged their rival shops at their father-in-law's urging. Fun fact: a young Thomas Edison once tended the company's telegraph line before he became famous.