Petrarch

Petrarch is the first market maker for specialized data

Petrarch operates a marketplace for proprietary datasets that sit inside enterprises and legacy industries, buying and licensing that data to AI companies that need training material beyond what the open web offers. According to the company's own description, it sources enterprise-facing datasets from distressed businesses and legacy industries, clears and anonymizes them, then brokers them to AI companies building for the physical world. Early transactions have included construction plans, autonomous driving recordings, and codebases, which points at buyers working on robotics, self-driving, and code generation models. The launch matters because the training data supply story has shifted. Frontier labs have largely exhausted the open internet, and the next wave of gains depends on domain-specific corpora that live in private hands, from CAD files to sensor logs to internal software repositories. Petrarch is positioning itself as the intermediary that finds these assets, handles the legal and privacy work to make them sellable, and matches them with labs willing to pay. The team is Ian Lee, Samuel Hahn, and Sudhish Swain, three Harvard dropouts with prior experience at Scale and Meridian AI. Petrarch is part of Y Combinator's Summer 2026 batch, works with YC partner Vivian Midha Shen, and is based in San Francisco with a team of three.

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