Cadio Zirpoli

  • Biography
  • Key Cases
  • Accolades & Awards

Cadio Zirpoli is a distinguished member of the San Francisco legal community, with roots tracing back generations. He has built his career on tenacity and the ability to bring numerous high-profile cases to positive results for his clients.

Cadio’s relationships with firm founder Joseph Saveri and partner Ronnie Seidel Spiegel stem from when both were at separate firms and worked on many cases together, sometimes as co-counsel, others in tandem but representing separate classes or clients. In recent years, they converged on the landmark Capacitors case, which resulted in settlements totaling $604.55 million and breakthroughs in antitrust law. As a result of these successful collaborations, in 2022, Cadio left his former firm, Saveri & Saveri, Inc., to join the firm.

Throughout his legal career, Cadio has specialized in complex civil and class action litigation in both federal and state courts, focusing primarily on antitrust suits. His work covers various industries, including electronics, pharmaceuticals, banking, financial institutions, paper products, agriculture, travel, transportation, insurance, and the protein market. He has played a significant role in resolving some of the largest electronics antitrust cases on record, including In re DRAM Antitrust Litigation, In re Cathode Ray Tube (CRT) Antitrust Litigation, In re Optical Disk Drive Products Antitrust Litigation, and In re Lithium Ion Batteries Antitrust Litigation.

At the firm, Cadio plays a key role in developing and coordinating its timely Generative AI Litigation. These novel, cutting-edge cases are on behalf of classes of artists, coders, and authors who allege their creative work is being illegally appropriated by defendants’ artificial intelligence and machine learning technology without consent, credit, compensation, or transparency. These cases have drawn considerable legal and international press attention and have been the subject of a July 2023 Senate Judiciary Committee subcommittee hearing, at which Cadio attended and advised his testifying client.

Also, prior to and while at the firm, Cadio has been actively involved in prosecuting the “protein” cases: a series of price-fixing investigations, and collusion in the meat industry, such as broiler chickens and pork.

Cadio argued and won an appeal before the Ninth Circuit Court of Appeals in Bozzio v. EMI Grp. Ltd., 811 F.3d 1144 (9th Cir. 2016), a breach of contract case raising issues of first impression in the Ninth Circuit.

Working full time and attending law school by night, Cadio graduated with honors from the University of San Francisco School of Law. He then joined the San Francisco District Attorney’s Office, distinguishing himself by working under a federal grant to prosecute repeat offenders of domestic violence, elder abuse, and child abuse.

In addition to his impressive court record, Cadio is an AV Preeminent-rated lawyer on Martindale-Hubbell. In 2022, he was honored by the American Antitrust Institute for "Outstanding Antitrust Litigation Achievement in Private Law Practice" for his role in Cameron v. Apple Inc., No. 4;19-cv-03074 (N.D. Cal.). He has been named to Northern California Super Lawyers 2010 and 2014-present, and named to the Top 100: Northern California Super Lawyers since 2018. In 2023, he was honored by Lawdragon as one of its 500 Leading Litigators and 500 Leading Plaintiff Financial Lawyers.

Outside of his legal practice, Cadio is deeply committed to the community, serving as a volunteer judge with the YMCA Marin County Youth Court, an alternative to the traditional juvenile justice system based on restorative justice principles. 



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