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A company that collects and sells personal data about people with whom it has no direct relationship. Data brokers supply much of the third-party audience market and are subject to registration laws in California, Vermont, Texas, and Oregon, and to the California Delete Act's one-stop deletion mechanism from 2026.

Cite this entry: Agency Echelon. "Data Broker." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/data-broker/

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Reviewed September 23, 2026. Reference text is licensed CC BY 4.0. Privacy