Ben Siminou | Attorney

Ben Siminou is a certified appellate specialist, and leads our Motion, Writs & Appeals practice group. Mr. Siminou handles law-and-motion and appellate briefing in complex, high-stakes cases in state and federal courts throughout the United States. He has notable wins in the California Supreme Court, Nebraska Supreme Court, Ninth Circuit Court of Appeals, and California Court of Appeal. Between 2020 and 2023, Mr. Siminou defeated dispositive motions in cases with an aggregate value of $100 million.

In 2023, Mr. Siminou received the first ever “Appellate Case of the Year Award” from Consumer Attorneys of San Diego for Ross v. Superior Court, 77 Cal.App.5th 667 (2022), which held that efforts to tamper with a witness in a civil case are admissible at trial as consciousness of guilt, and may justify so-called “apex” depositions of high-ranking government officials.

In 2021, Mr. Siminou received the “XONR8R Award” from the California Innocence Project for his pro bono work in Larsen v. California Victim Compensation Board, 64 Cal.App.5th 112 (2021), which expanded the rights of wrongfully convicted persons to receive compensation for their time spent incarcerated.

In 2018, Mr. Siminou received the “Appellate Advocacy Award” from the National Civil Justice Institute in Washington D.C., which “recognizes excellence in appellate advocacy” nationwide. The award acknowledged Mr. Siminou’s work in T.H. Novartis Pharmaceutical Corp., 4 Cal.5th 145 (2017), a landmark decision by the California Supreme Court that greatly expanded rights for victims of mislabeled drugs.

Super Lawyers recognized Mr. Siminou as a “Rising Star” in 2015, 2016, 2017, 2018, 2019, and a “Super Lawyer” in 2021.

Before entering private practice, Mr. Siminou served as a judicial clerk to the Honorable Michael G. Heavican, Chief Justice of the Nebraska Supreme Court. He then spent nearly a decade with Thorsnes Bartolotta McGuire LLP, before starting Siminou Appeals, Inc., a solo appellate practice.

Mr. Siminou earned a bachelor’s degree from Trinity University with a double major in political science and English. He graduated Order of the Coif with High Distinction from the University of Nebraska College of Law, where he was the editor in chief of the Nebraska Law Review and earned numerous honors and awards, particularly for his legal research and writing.

In 2020, Mr. Siminou joined the Committee on the Appellate Courts, a select, statewide group of appellate lawyers in the public and private sectors that help influence rules and procedure in California’s appellate courts. In 2023, he joined the board of directors for Consumer Attorneys of San Diego.

Mr. Siminou volunteers his time to pro bono cases and as a mentor for The Appellate Project, guiding law students of color or from marginalized groups who are interested in careers in appellate advocacy.

When Mr. Siminou is not writing briefs or consulting with trial lawyers, he can be found at the beach or on a hiking trail with his wife and children, in the gym, or on a racetrack in a car.

Mr. Siminou is admitted to practice in California, Nebraska, and the Second, Third, Fifth, and Ninth Circuit Court of Appeals.