wikis
(2)
Jay Sullivan
Jay Sullivan is the CEO of Fandom, the world's largest fan platform with 350 million monthly visitors spanning wikis, gaming, movies, TV, and pop culture. A Yale-trained applied mathematician turned product visionary, Sullivan built his career shepherding the open web at Mozilla—where he served as SVP of Product, COO, and Interim CEO—before stints driving product at Groupon, Facebook's Reality Labs AI team, and Twitter's consumer and revenue products. Co-inventor of three US patents and co-founder of PhoneSpots (acquired 2007), he has spent two decades building platforms at mass scale. Since joining Fandom in February 2026, he is steering the company from a Google-traffic-dependent reference destination toward a real-time, AI-powered fan engagement platform.
Sirasom Si
Sirasom Si is the Chief Executive Officer of Fandom, the world's largest fan platform and wiki hosting service headquartered in San Francisco. With over 350 million monthly visitors, Fandom hosts tens of thousands of fan communities spanning gaming, TV, movies, anime, and pop culture. Based in Bangkok, Thailand, Si leads a company that has raised over $239 million in funding and generates approximately $175 million in annual revenue, sitting at the intersection of community-driven content, entertainment media, and digital advertising.