I left a16z to go build - by Robin Guo - The Bird's Nest
I came here almost four years ago now off of a cold email. I’ve done many different things: learned consumer investing from some of the best, spun out to establish the games fund, and built out a16z speedrun as part of the founding team from the very beginning. I’ve been an investor, salesperson, invite tsar, software PM, program manager, growth hacker, product advisor, and therapist. It’s been the most challenging and fulfilling way to spend my late 20s. As for what’s next, I’ve been thinking about founding a company for a while and wanted to take the jump. But it wasn’t until recently that I stumbled upon a stellar idea and opportunity, one that fits with my roots and passion for science, consumer, and biotech… where I started my career as a biomedical engineer many years ago. We’ll be in stealth for a while but if you’re building in the bio or consumer health space I’d love to chat. However, the purpose of this essay is to serve less as a memoir and more a source of knowledge. The g
I left a16z to go build Lessons from four years investing at a top VC Robin Guo Nov 19, 2025 54 8 8 Share I left a16z to go build. I came here almost four years ago now off of a cold email . I’ve done many different things: learned consumer investing from some of the best, spun out to establish the games fund, and built out a16z speedrun as part of the founding team from the very beginning. I’ve been an investor, salesperson, invite tsar, software PM, program manager, growth hacker, product advisor, and therapist. It’s been the most challenging and fulfilling way to spend my late 20s. As for w
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