F. Mario Trujillo


Office: Washington, DC

Phone: (202) 706-5204

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Mario’s practice focuses on litigation, counseling, response to third-party subpoenas, and government investigations. In litigation, he has represented clients through motion practice, discovery, mediation, and appeals.

Mario represents and counsels clients on a wide range of privacy and consumer protection laws. These include state biometric laws (like BIPA and CUBI), federal and state telemarketing laws (like TCPA and FTSA), federal privacy and consumer protection laws (like ECPA, VPPA, and the FTC Act), and comprehensive state privacy laws.

Prior to joining ZwillGen, Mario clerked for a federal magistrate judge in the U.S. District Court for the Southern District of Texas. Mario received his J.D. from the Georgetown University Law Center, where he was a survey editor for the American Criminal Law Review as well as a research assistant for the Institute for Technology Law & Policy. During law school, Mario spent his summers working with the Electronic Privacy Information Center and the Federal Communications Commission’s Media Bureau.

Before becoming a lawyer, Mario worked as a technology policy reporter for The Hill newspaper. He majored in Journalism and Philosophy at the University of New Mexico.



Georgetown University Law Center, J.D., 2019, cum laude


Clerk to Honorable Magistrate Judge Diana Song Quiroga, U.S. District Court for the Southern District of Texas


District of Columbia