About Karen Barth
Karen Barth Menzies is a attorney specializing in mass tort litigation, particularly in cases involving women's health and defective products. She founded KBM Law in January 2023, focusing on representing survivors of sexual abuse and challenging industries that enable such misconduct. Prior to establishing KBM Law, Menzies was a partner at Gibbs Law Group LLP from July 2016 to January 2023. During her tenure, she played a pivotal role in significant mass tort cases, including the Taxotere Hair Loss Litigation and the Zoloft Birth Defect Litigation. Before joining Gibbs Law Group, she was a partner at Robinson Calcagnie, Inc. from 2007 to 2016, and at Baum Hedlund Aristei & Goldman from 1995 to 2007. Menzies earned her Juris Doctor from the University of California, Davis, School of Law in 1995 and a Bachelor of Arts from Colorado State University in 1989. She is admitted to practice in California and holds memberships in the American Association for Justice, Consumer Attorneys of California, American Bar Association, Women's Lawyers Association of Los Angeles. The National Association of Public Justice. In June 2025, Justice Law Collaborative announced a merger with KBM Law, expanding its reach with a new West Coast office led by Menzies. Menzies is also a member of the National Crime Victim Bar Association. She is fluent in English — Her office is located at 6701 Center Drive West, Suite 1400, Los Angeles, CA 90045-7504. For inquiries, she can be reached at (310) 363-0030 or via email at kbm@kbmlaw.com. Her license status is active, and she has been a member of the State Bar of California since December 1, 1995. Menzies has been appointed to leadership positions in several large pharmaceutical and device mass tort cases, including the Taxotere Hair Loss Litigation and the Zoloft Birth Defect Litigation. She has also been involved in cases such as Schmitz v. Sanofi S.A. et al in the Northern District of California.
In 2022, she founded KBM Law to provide a female-led law firm representing women in their pursuit of justice. Menzies is dedicated to advocating for women's health causes and representing survivors of sexual assault, taking on powerful pharmaceutical companies and individuals in the music entertainment industry. She has been recognized for her contributions to mass tort litigation, particularly in cases involving women's health and defective products. Menzies is committed to amplifying women's voices and supporting their efforts to champion justice issues that matter most to them. She is fluent in English. Her office is located at 6701 Center Drive West, Suite 1400, Los Angeles, CA 90045-7504. For inquiries, she can be reached at (310) 363-0030 or via email at kbm@kbmlaw.com. Her license status is active, and she has been a member of the State Bar of California since December 1, 1995. Menzies has been appointed to leadership positions in several large pharmaceutical and device mass tort cases, including the Taxotere Hair Loss Litigation and the Zoloft Birth Defect Litigation. She has also been involved in cases such as Schmitz v. Sanofi S.A. et al in the Northern District of California. In 2022, she founded KBM Law to provide a female-led law firm representing women in their pursuit of justice. Menzies is dedicated to advocating for women's health causes and representing survivors of sexual assault, taking on powerful pharmaceutical companies and individuals in the music entertainment industry. She has been recognized for her contributions to mass tort litigation, particularly in cases involving women's health and defective products. Menzies is committed to amplifying women's voices and supporting their efforts to champion justice issues that matter most to them. She is fluent in English. Her office is located at 6701 Center Drive West, Suite 1400, Los Angeles, CA 90045-7504.
For inquiries, she can be reached at (310) 363-0030 or via email at kbm@kbmlaw.com. Her license status is active, and she has been a member of the State Bar of California since December 1, 1995. Menzies has been appointed to leadership positions in several large pharmaceutical and device mass tort cases, including the Taxotere Hair Loss Litigation and the Zoloft Birth Defect Litigation. She has also been involved in cases such as Schmitz v — Sanofi S.A. et al in the Northern District of California. In 2022, she founded KBM Law to provide a female-led law firm representing women in their pursuit of justice. Menzies is dedicated to advocating for women's health causes and representing survivors of sexual assault, taking on powerful pharmaceutical companies and individuals in the music entertainment industry. She has been recognized for her contributions to mass tort litigation, particularly in cases involving women's health and defective products. Menzies is committed to amplifying women's voices and supporting their efforts to champion justice issues that matter most to them. She is fluent in English — Her office is located at 6701 Center Drive West, Suite 1400, Los Angeles, CA 90045-7504. For inquiries, she can be reached at (310) 363-0030 or via email at kbm@kbmlaw.com. Her license status is active, and she has been a member of the State Bar of California since December 1, 1995. Menzies has been appointed to leadership positions in several large pharmaceutical and device mass tort cases, including the Taxotere Hair Loss Litigation and the Zoloft Birth Defect Litigation. She has also been involved in cases such as Schmitz v. Sanofi S.A. et al in the Northern District of California. In 2022, she founded KBM Law to provide a female-led law firm representing women in their pursuit of justice. Menzies is dedicated to advocating for women's health causes and representing survivors of sexual assault, taking on powerful pharmaceutical companies and individuals in the music entertainment industry.
She has been recognized for her contributions to mass tort litigation, particularly in cases involving women's health and defective products. Menzies is committed to amplifying women's voices and supporting their efforts to champion justice issues that matter most to them. She is fluent in English. Her office is located at 6701 Center Drive West, Suite 1400, Los Angeles, CA 90045-7504. For inquiries, she can be reached at (310) 363-0030 or via email at kbm@kbmlaw.com. Her license status is active, and she has been a member of the State Bar of California since December 1, 1995. Menzies has been appointed to leadership positions in several large pharmaceutical and device mass tort cases, including the Taxotere Hair Loss Litigation and the Zoloft Birth Defect Litigation. She has also been involved in cases such as Schmitz v. Sanofi S.A. et al in the Northern District of California. In 2022, she founded KBM Law to provide a female-led law firm representing women in their pursuit of justice. Menzies is dedicated to advocating for women's health causes and representing survivors of sexual assault, taking on powerful pharmaceutical companies and individuals in the music entertainment industry. She has been recognized for her contributions to mass tort litigation, particularly in cases involving women's health and defective products. Menzies is committed to amplifying women's voices and supporting their efforts to champion justice issues that matter most to them. She is fluent in English. Her office is located at 6701 Center Drive West, Suite 1400, Los Angeles, CA 90045-7504.
