John Onopchenko

Synergy Management Company I LLC (Synergy Management Company) is a venture capital firm founded in 2006 by Richard S. Stack, William N. Starling and John Onopchenko. The firm is headquartered in San Francisco, California.

TransEnterix is advancing the field of minimally invasive surgery through exploration, innovation and collaboration. Based in North Carolina's Research Triangle Park, TransEnterix is a rapidly growing medical device company founded in 2006. Since its inception the company has designed, received FDA approval and launched the groundbreaking SPIDER Surgical System, which provides surgeons with enhanced capabilities by creating triangulation via single site access with flexible articulating instruments. The platform enables a whole new class of less invasive surgery - Flexible Laparoscopy - which builds on the proven technologies of laparoscopic surgery and catheter based medical treatments.

Volcano Corp. designs, develops and manufactures a broad suite of intravascular ultrasound products. The company was founded by Olav B. Bergheim and Samuel Ward Casscells and is headquartered in San Diego, CA.

Oraya Therapeutics, Inc. develops and commercializes a non-invasive therapy for wet age-related macular degeneration. The firm delivers a precise dose of radiation non-invasively to the macula using an automated positioning system and a localizing algorithm. The company was founded by Michael E. Gertner in 2006 and is headquartered in Newark, CA.

BaroSense Inc. operates as a medical device company that focuses on the research and development of minimally invasive medical devices for the treatment of obesity. The company was founded by Richard S. Stack and William N. Starling, Jr. in 2001 and is headquartered in Redwood City, CA.

Endologix LLC engages in the research, development, manufacture, and trade of medical devices for the treatment of aortic disorders such as abdominal aortic aneurysms (AAA). Its products include AFX Endovascular AAA System, Nellix and Ovation. The company was founded in March 1992 and is headquartered in Irvine, CA.

TriVascular, Inc. develops and manufactures medical devices. It provides devices and procedures for treating abdominal aortic aneurysms and endovascular grafts. The company was founded by Michael V. Chobotov, Robert G. Whirley, and Joseph W. Humphrey in 1998 and is headquartered in Irvine, CA.

Trivascular Technologies, Inc. operates as a medical device company developing and commercializing technologies to significantly advance minimally invasive treatment of abdominal aortic aneurysms. The company was founded on July 11, 2007 and is headquartered in Santa Rosa, CA.