Geronimo Gutierrez IV

About Geronimo Gutierrez IV

Geronimo Gutierrez IV is the founder and chief counsel of Poseidon Defense A.P.C. in Fullerton, California, a criminal defense firm representing people facing misdemeanor and felony charges in state and federal court throughout Southern California. Before founding the firm in 2025, he defended felony cases as a Deputy Public Defender with the Los Angeles County Public Defender and spent nearly three years as a criminal defense attorney at The Matian Firm in Los Angeles. During law school he worked with the San Diego County Office of the Public Defender, including its major cases and conflicts units, and with a San Diego defense firm. He earned his J.D. from Thomas Jefferson School of Law, where he was editor-in-chief of The Jeffersonian, and his B.A. in Political Science from California State University, Fullerton. He is admitted in California state courts and the Central, Eastern and Southern Districts of California, and is fluent in Spanish.

Where Geronimo Gutierrez IV practices

Practice areas

Credentials

Bar admissions

California State Bar No. 336371 (Active admitted 2021-01-29)