Paxton AI, Inc.

Paxton AI, Inc. is a legal technology company founded in 2023 and headquartered in Palo Alto, California. The company builds an AI-powered assistant for legal professionals, co-founded by Tanguy Chau.

The platform provides access to more than 10 million legal documents spanning federal and state laws and court rulings, enabling attorneys to conduct contextual legal research, draft documents, analyze contracts, and generate medical chronologies. Paxton supports practice areas including personal injury, family law, employment, criminal law, and corporate law, and features an AI citator for citation verification. The platform was named the 2025 Law.com Innovation Winner.

Paxton AI raised a $22 million Series A round in March 2025. The company employs approximately 30 people as of mid-2025.