Some Notable signatories:

Emphasis and extra info added.

• John Borthwick, Founder/CEO, Betaworks
• Ben Keighran, Entrepreneur; Former Design Lead, Apple
• Josh McFarland, Vice President of Product, Twitter
• Andrew McLaughlin, Head of New Business, Medium; Venture Partner, betaworks
• Dustin Moskovitz, Co-Founder, Asana; Co-Founder, Facebook
• Alexis Ohanian, Co-Founder, Reddit
• Pierre Omidyar, Founder, eBay
• Mark Pincus, Executive Chairman and Founder, Zynga
• Kim Malone Scott, CEO, Candor, Inc; Former Director, Google
• Katie Stanton, CMO, Color Genomics; Former VP of Global Media, Twitter
• Margaret Stewart, Vice President of Product Design, Facebook
• Jimmy Wales, Founder of Wikipedia
• Ev Williams, Founder/CEO, Medium; Co-Founder Twitter, Blogger
• Steve Wozniak, Co-Founder, Apple
• Andrew Yang, Founder/CEO, Venture for America
• Arielle Zuckerberg, Partner, Kleiner Perkins Caufield & Byers [(Sister of Mark Zuckerberg)]

Special notes:

Zynga Chairman and Founder, Mark Pincus, deserves a special note because of the recent find from anons regarding Regina Dugan, who has ties to DARPA, Google and Facebook, along with having joined the Board of Zynga 2 years after a class action lawsuit against and investigation into them began, regarding insider trading - the case was settled for $23 million in 2015.

Venture partner at Betaworks, Andrew McLaughlin, along with Betaworks' founder and CEO, John Borthwick, deserve a special note because of Geraldine Laybourne's connection to Betaworks.