Mark Jacobstein is a Visiting Partner based in San Francisco. In 1994, Mark founded Small World Sports, the world’s first online fantasy sports company, and Small World Software, NYC's first web agency. He co-founded Digital Chocolate with Trip Hawkins, co-led loopt with Sam Altman, and led mobile startup iSkoot through acquisition. More recently, he led business growth at both Guardant Health (through its IPO) and Immunai (as it raised $300M), co-founded Jimini Health, and co-founded Near Horizon.