Rob Barthelmess

Benjamin J sweet attorney 2



Licensed In



United States Court of Appeals for the Ninth Circuit
U.S. District Court – Central District of California



Rob Barthelmess is an associate at Nye, Stirling, Hale, Miller & Sweet. His practice focuses on complex civil litigation and appeals in both state and federal courts, internal investigations, and regulatory matters. Before joining Nye, Stirling, Hale, Miller & Sweet in 2023, Rob was a litigation associate at O’Melveny & Myers in the firm’s downtown Los Angeles office and served as a law clerk to the Honorable Ryan D. Nelson in the United States Court of Appeals for the Ninth Circuit.Rob graduated cum laude from the Georgetown University Law Center in 2017. While in law school, Rob worked as a law clerk at the United States Senate Committee on the Judiciary’s Subcommittee on Antitrust, Competition Policy and Consumer Rights, the United States Securities & Exchange Commission’s Division of Enforcement, and the Santa Barbara County District Attorney’s Office.Born and raised in Santa Barbara, Rob started working as a freelance photojournalist for the Santa Barbara News-Press while in high school and continued until he moved out of town to begin law school. While working as a photographer, Rob volunteered at local elementary schools, where he organized and taught an after-school photography class to students using film cameras donated by members of the community. Rob continues to serve his community as a member of the Board of Directors for a Santa Barbara non-profit serving the developmentally disabled.Rob is a member of the California Bar and is admitted to the bars of the United States District Court for the Central District of California and the United States Court of Appeals for the Ninth Circuit.