Jack Dorsey

X Corp. is a global platform for public self-expression and conversation in real time. It provides a network that connects users to people, information, ideas, opinions and news. The company's services include live commentary, live connections and live conversations. Its application provides social networking services and micro-blogging services through mobile devices and the Internet. The company can also be used as a marketing tool for businesses. Its products and services include Promoted Tweets, Promoted Accounts and Promoted Trends. Twitter was founded by Jack Dorsey, Christopher Isaac Stone, Noah E. Glass, Jeremy LaTrasse and Evan Williams on March 21, 2006, and is headquartered in San Francisco, CA.

Exploratorium engages as a museum of science, art and human perception activities . It creates tools and experiences that help people to become an active explorer. The firm includes film creenings workshops for life long learners as well as culture of learning through innovative environments, programs and tools that help people nurture their curiosity about the world around them. The company was founded in 1969 and is headquartered in San Francisco, CA.

Thing Daemon, Inc. offers online retail services. Its scrapbooking and shopping site allows a user to create a catalog of their favorite things around the web and around the world. The company’s users can curate a collection of things they love, receive updates on favorite brands and stores and share their discoveries all in one place. Thing Daemon was founded by Joseph Einhorn and Jack Einhorn in 2009 and is headquartered in New York, NY.