Sam Gerstenzang

Founder of Boulton & Watt. Most recently ran Payment UIs for Stripe, co-founded Umbrella (acquired by Angie’s List), incubated companies for Sidewalk Labs, invested at a16z and so on.

Before I was on Substack, I was on Medium writing things like this:

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Writing and essays from @gerstenzang


Co-founder Boulton & Watt, the world’s slowest incubator. Build products, teams, companies. Formerly Stripe, a16z, Sidewalk Labs, Imgur, Umbrella.