Jeffrey D Dintzer

A leading attorney both in California and nationwide, Jeffrey Dintzer represents energy, manufacturing, and defense industry clients in complex environmental, toxic tort, land use, and class action litigation. Over the course of his 37-year career, Jeffrey has played a prominent role in precedent-setting cases affecting the way industries do business in California. His deep expertise in hydrogeology, toxicology, epidemiology, and other life sciences helps his clients navigate ecological personal injury and property damage claims, particularly those involving emerging chemicals such as PFAS and perchlorate. As one of the deans of the environmental bar in California, Jeffrey represents California’s major oil and gas interests on upstream matters, helping them navigate the growing complexity of the state regulatory landscape and the challenges of increasingly litigious nongovernmental organizations.

Former law clerk, Judge Alice-Marie Stotler, C.D. California; Daily Journal, “Top 100 Lawyers in California” for 2019, 2020, and 2024.