Cadio Zirpoli

  • Biography
  • Key Cases
  • Accolades & Awards

Cadio Zirpoli is a proud member of the San Francisco legal community, with roots going back generations. Cadio does his heritage proud with a reputation for tenacity, an unrivaled work ethic, and the skill to bring numerous high-profile cases to conviction.

Cadio’s relationships with firm founder Joseph Saveri and partners Steven Williams and Ronnie Seidel Spiegel go back decades, when all were at separate firms and worked on many cases together, sometimes as co-counsel, others in tandem but representing separate classes or clients. As their personal lives and legal careers diverged, the group found themselves working together on the landmark Capacitors case. Traveling together to Tokyo, Cadio and Joe discovered a synergy that proved electric as their joint efforts resulted in multi-million-dollar settlements for their clients. As it became evident that they all worked well together, the natural progression resulted in Cadio joining the firm.

Cadio’s work ethic has always been strong; he worked full time and attended law school at night as but one early example. This work ethic informs his legal career and how he approaches client service. After graduating with honors from the University of San Francisco School of Law, Cadio 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.

At his former firm, Saveri & Saveri, Inc., Cadio specialized in complex civil and class action litigation in both federal and state courts, focusing primarily on antitrust suits. His work covered various industries, including electronics, pharmaceuticals, banking, financial institutions, paper products, agriculture, travel, transportation, insurance, and the protein market. He has been instrumental in resolving some of the largest electronics antitrust cases, 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.

Cadio is not resting on his laurels. He is currently at the forefront of the “protein” cases, a series of price-fixing investigations, and collusion in the meat industry, such as broiler chickens and pork. He actively takes executives’ depositions, bringing his renowned investigative mind to the table.

Cardio 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.

In addition to his impressive court record, Cardio is an AV Preemininent-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.

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. Additionally, he has served as a Ferry Passenger Advisory Committee member.


  • In re Capacitors Price-Fixing Antitrust Litigation
  • “Protein Cases”
    • In re Pork Antitrust Litigation, No. 18-cv-01776-JRT-HB (D. Minn.)
    • In re Broiler Chicken Antitrust Litigation, No. 16-cv-08637 (N.D. Ill.)
  • In re DRAM Antitrust Litigation, MDL No. 1486, Case No. M:02-1486 PJH (N.D. Cal.)
  • In re Cathode Ray Tube (CRT) Antitrust Litigation, MDL No. 191, Case No. cv-07-5944 JST (N.D. Cal.)
  • In re Optical Disk Drive Products Antitrust Litigation, MDL No. 2143, Case No. 3:10-md-2143 RS (N.D. Cal.)
  • In re Lithium Ion Batteries Antitrust Litigation, MDL No. 2420, Case No. 13-md-02420-YGR (N.D. Cal.).
  • Bozzio v. EMI Grp. Ltd., 811 F.3d 1144 (9th Cir. 2016)
  • In re Managed Care Litigation, MDL No. 1334, Case No. 00-1334-MD (S.D. Fla.)
  • In re Static Random Access Memory (SRAM) Antitrust Litigation, MDL No. 1819, Case No. 07-MD-1819 (N.D. Cal.)
  • In re Generic Pharmaceuticals Pricing Antitrust Litigation
  • Cameron v. Apple Inc., No. 19-cv-03074-YGR (N.D. Cal.)
  • American Antitrust Institute: Honoree for Antitrust Enforcement Awards for “Outstanding Antitrust Litigation Achievement in Private Law” for key role in Cameron v. Apple Inc. (2022)

  • Martindale Hubbell: AV Preeminent Peer Rated Attorney

  • Super Lawyers: Super Lawyers Northern California - Antitrust Litigation (2010, 2014-present); Super Lawyers Top 100: Northern California (2018-present)