Yelp

Established in 2004 by Jeremy Stoppelman and Russ Simmons, Yelp hosts an online database of user reviews of local businesses. It provides reviews on businesses, including but not limited to restaurants, boutiques, salons, dentists, mechanics, and plumbers.

Headquartered in San Francisco, the company provides an array of advertising solutions for consumers, including online business accounts, search advertising, and Yelp Deals. Operating in the online content market in the United States, Yelp mainly generates revenue from the sale of advertising on its website and mobile app to businesses.

Consumers can post and access product and service reviews, tips, photos, and videos. In addition, the platform enables buyers to directly transact with businesses through its platform. The listings are sorted by business type, and the search results are filtered by geographical location, price range, and features like outdoor seating, delivery service, and the ability to accept reservations.