Trevor O’Brien

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.

Projector Factory, Inc. develops creative tools for visual storytelling. The firm engages in building a set of collaborative tools for creating and sharing visual communications including presentations, reports, print materials and social media graphics. The company was founded by Jeremy Gordon and Trevor O’Brien in 2017 and is headquartered in San Francisco, CA.

A Medium Corp. operates as a publishing platform. It enables users to share stories, ideas and unique perspectives. The company was founded by Evan Williams in 2012 and is headquartered in San Francisco, CA.