Facebook Facebook Facebook, Inc. is an American social media and technology company based in Menlo Park, California. It was founded by Mark Zuckerberg, along with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes, originally as TheFacebook.com—today's Facebook, a popular global social networking website. Facebook is one of the world's most valuable companies. It is considered one of the Big Five technology companies along with Microsoft, Amazon, Apple, and Google. Facebook offers other products and services. It acquired Instagram, WhatsApp, and Oculus, and independently developed Facebook Messenger, Facebook Watch, and Facebook Portal.