Regbase appears in Y Combinator's company directory in the Spring 2026 batch, listed 2026-04-13. Automating Corporate Compliance, Worldwide.
Regbase is a Y Combinator company in the Spring 2026 batch. Its directory entry describes it as: Automating Corporate Compliance, Worldwide. The founders listed are Natalie Aresta-Katz (Founder/CEO), Ethan Shea (Founder/CTO) (Y Combinator directory entry, April 13, 2026).
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Regbase is a regulatory horizon scanning and grant availability tracking tool, designed for lawyers, researchers, and companies that sell to the government. We track AI, Employment, ESG, CPG, and any other legal topic.
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Natalie Aresta-Katz
Founder/CEO
Prior to Regbase, Natalie was the founder of Saponify. Between the ages of 16 and 22, Natalie sold over $1M of soap base on Amazon.
She was the first sustainable business major at NYU Stern, and has an MBA from Columbia.
Natalie also spent 3 years as a regulatory researcher at the law firm Paul, Weiss, which is where she got the idea for Regbase.
Ethan Shea
Founder/CTO
Founder/CTO at Regbase- Automating Corporate Compliance Worldwide
Previously I was a staff engineer at Vercel, where I built the observability backend and the first Vercel Agent. Before that I worked at Citadel where my team maintained the firm's master list of everything that can be traded. I grew up in Seattle and went to the University of Washington.
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