Our Story

Third Security's story actually begins in the early 1980s, when our founder, R.J. Kirk, was a young attorney in Southwest Virginia.

From his initial investments, including the formation of General Injectables & Vaccines, Inc. (GIV) in 1984, Mr. Kirk quickly distilled the principles that became the foundation of Third Security's management model.

GIV was sold to a major competitor in 1998; and shortly thereafter, Mr. Kirk and a handful of associates launched Third Security in 1999 to help manage their personal investments and affiliated entities.

Third Security employees use their experience and expertise to attempt to guide the investments of our Affiliated Investment Funds toward category dominance.

As we follow our global strategy to unlock value through patient investment management, Third Security maintains the highest standards of professional conduct, combining an effective management team with operational acumen and solid research.

About Third Security

Third Security, LLC ("Third Security") is a venture capital firm characterized by an expanding global perspective and a distinctively patient approach.

On behalf of our Affiliated Investment Funds, Third Security evaluates opportunities in a wide range of industries, but principally focuses on emerging through late-stage investments in life-sciences companies.


The Governor Tyler
1881 Grove Ave
Radford, Virginia 24141

Phone: (540) 633-7900
Fax: (540) 633-7939

735 Market Street
3rd Floor
San Francisco, CA 94103

Phone: (415) 644-5365
Fax: (415) 344-0677

222 Lakeview Avenue
Suite 1400
West Palm Beach, FL 33401

Phone: (561) 410-7099
Fax: (561) 410-7003