Startup Spotlight: Regbase searches the regulatory sources legal databases miss

Founders Natalie Aresta-Katz and Ethan Shea built Regbase to retrieve rules, grants and government documents from poorly indexed, local and non-English sources.

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Primary source: Y Combinator

Why it matters

Regbase is testing whether source discovery can become the defensible layer in legal AI, where a fluent summary has little value if the underlying rule was never retrieved. Its founders bring direct experience with both the manual research problem and the search infrastructure needed to automate it.

A modern laptop displaying abstract data visualizations sits on a desk next to traditional legal documents and law books.

Natalie Aresta-Katz and Ethan Shea are building Regbase, a New York regulatory research platform that searches for laws, proposals, grants and agency guidance across countries, languages and the less accessible corners of government websites.…

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