Mark Jacobstein is an Investor 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.