John Grinnan

John Grinnan is a trial lawyer at Arnold & Itkin LLP in Houston, Texas, where he represents clients in cases of catastrophic injury and wrongful death across the entire state. His focus is on delivering the most favorable outcomes for his clients by representing them against large corporations throughout the United States.

With a background deeply rooted in Texas, Mr. Grinnan was raised in Dallas and educated at Jesuit College Preparatory School of Dallas before moving to Austin to study government at The University of Texas at Austin. He then relocated to Houston for his legal studies at South Texas College of Law Houston. During his time there, he excelled in the Moot Court Program and achieved high academic honors, graduating cum laude in the top 15% of his class. He is admitted to practice by the State Bar of Texas.

Mr. Grinnan's dedication to his clients is reflected in his approach to litigation, marked by both aggression and creativity. Before joining Arnold & Itkin LLP, Mr. Grinnan spent nearly a decade handling product liability and mass tort cases, taking on and triumphing over some of the world's largest corporations. Notably, he played a pivotal role in the transvaginal mesh trials against Boston Scientific Corporation, which led to significant settlements after jury verdicts awarded millions in damages.

Mr. Grinnan's career is also marked by substantial settlements in personal injury cases, such as achieving a multimillion-dollar settlement for a worker severely injured during pipeline construction. His legal acumen and determination have earned him recognition, including being listed among the Top 10 Jury Verdicts in Texas by TopVerdict.com in 2023.