Our Story

Westlake Village BioPartners is a Los Angeles area-based venture capital firm focused on incubating and building life sciences companies with entrepreneurs that have the potential to bring transformative therapies and technologies to patients. The Westlake model is built on the founding team’s unique experience in successfully identifying and developing breakthrough therapies and building organizations.

Meet the Westlake Team

Our Team

Beth Seidenberg

Dr. Seidenberg is a founding managing director of Westlake Village BioPartners and a general partner at Kleiner Perkins, a leading venture capital firm. A longtime life sciences investor, she has incubated-invested 13 biotech ventures since January 2006, including ARMO, Arresto, Atara, Cell Design Labs, iPierian, Epizyme, Flexus, TESARO and True North.

Dr. Seidenberg has a demonstrated ability to identify and accelerate medically meaningful molecules through development. Her expertise is grounded in her significant senior level industry experience with leadership roles at Amgen, Bristol-Myers Squibb and Merck Research Laboratories. Most recently, at Amgen, Dr. Seidenberg was chief medical officer and head of global development.

Prior to life science investing, Dr. Seidenberg’s career focused on developing new treatments for AIDS, arthritis, asthma, cancer and psoriasis, cardiovascular, metabolic, neurological and renal disorders for over 20 years. During that time, she introduced 10 innovative products to market and achieved over 40 regulatory approvals (including new indications and formulations) on a worldwide scale.

Dr. Seidenberg holds a Bachelor of Science degree in biology and anthropology from Barnard College and attended medical school at the University of Miami School of Medicine. She completed her medical residency at Johns Hopkins University and the George Washington University, and Fellowship at the National Institutes of Health.

Scott Ryles

Mr. Ryles is chief operating officer (COO) of Westlake Village BioPartners and has been the COO of Kleiner Perkins, a leading venture capital firm, since 2014. Mr. Ryles has extensive operational and financial expertise, working with entrepreneurs and emerging companies in digital, green and life science technologies. He’s held chief executive (CEO) roles in asset management, investment banking and insurance, including two Kleiner Perkins portfolio companies.

Mr. Ryles started his career at Merrill Lynch, where he spent 18 years in various investment banking positions including co-head of west coast investment banking, global head of natural resources and global head of technology. Mr. Ryles also served as vice chairman of Cowen and Company. Mr. Ryles has originated and executed more than $100 billion of private placements, IPOs, secondary offerings, convertible securities and mergers and acquisitions for companies in the financial services, utility, natural resources, media and retailing industries, as well as for private and public technology companies in America, Europe and Asia.

Mr. Ryles held numerous senior management and business operations roles throughout his career, including founder and CEO of Epoch Partners, an investment bank backed by Kleiner Perkins and Benchmark Capital. Goldman Sachs acquired Epoch in 2001. Mr. Ryles served as president and CEO of Home Value Protection (HVP), an insurance company also backed by Kleiner Perkins. HVP was acquired by AmTrust in 2012. Mr. Ryles also co-founded and served as CEO of Echelon Capital Strategies, a fixed income hedge fund manager.

Mr. Ryles has served on numerous private and public company boards, including KKR Financial and The Gymboree Corporation.

In the News


3075 Townsgate Road, Suite 140
Westlake Village, CA 91361

Contact Info
Toll Free: (888) 828-6713

Office: (805) 465-9588