Ross Hoffman

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.

Part of Cards Parents LP, Goldin Auctions LLC is a leading marketplace for trading cards, sports memorabilia, and other collectibles. The private company is based in Runnemede, NJ, and is dedicated to offering collectors the best collectible treasures through their auction platform. Goldin Auctions sets records for the most expensive trading cards and memorabilia ever sold and is trusted by lifelong collectors and new hobbyists due to its professional authentication process. The company is the official auction partner of prestigious organizations such as the Naismith Memorial Basketball Hall of Fame and the Babe Ruth Birthplace and Museum. The company, founded in 2012 by Ken Goldin, has sold over $1 billion in memorabilia from renowned figures in sports, history, and pop culture. The CEO of Goldin Auctions is Ross Hoffman. Goldin Auctions was acquired by Cards Parents LP on April 23, 2021.