Weight Watchers is a public company that is traded on the New York Stock Exchange. Operated out of offices in New York City, New York, the company was founded in 1963. Weight Watchers is a service that helps people lose weight through a combination of a special diet and a support group. Meetings are held in locations throughout the United States as well as in more than 25 countries around the world. The company also offers Weight Watchers Online, an online diet program. Those who pay for the service get access to apps to help them plan meals and achieve their weight loss goals.