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Peter Reinhardt on Building Segment and Charm Industrial

Y Combinator

As a college student, Peter Reinhardt (@reinpk) started a company that stumbled, pivoted, and nearly ran out of money before a small open-source library became Segment—the data layer behind thousands of software companies and was later acquired by Twilio. On the Social Radars with @jesslivingston and @cjoneslevy, he reflects on the panic attacks, pricing mistakes, and how he learned to sell by listening hard to customers. Lessons he now carries into Charm Industrial, where he’s working to remove CO2 from the atmosphere and store it permanently underground. 00:00 – From MIT to YC: The ClassMetric idea 07:02 – When your customers don’t actually care 12:38 – A year in the wilderness building analytics 18:27 – Panic attacks and the lowest point 27:18 – The Hacker News post that saved the company 35:06 – Learning to sell (and asking for 1000x more) 44:52 – Hitting product-market fit the hard way 54:10 – The moment revenue started shrinking 1:02:33 – Selling Segment & starting Charm

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