Venrock

Venrock, a compound of "Venture" and "Rockefeller", is a venture capital firm formed in 1969 to build upon the successful investing activities of the Rockefeller family that began in the late 1930s. It has offices in Palo Alto, California, New York City, and Boston, Massachusetts.
History.
Venture capitalist Laurance S. Rockefeller (1910–2004) was the fourth of the six children of John D. Rockefeller, Jr. In January 1946 he formed Rockefeller Brothers, Inc., one of the first postwar venture-capital operations, starting with a capitalization of $1.5 million. There were eight partners in all, the five brothers and their sister, Abby, and two non family members Harper Woodward and MIT scientist, Ted Walkowicz. In 1969, the firm became known as Venrock. Laurance S. Rockefeller became an investor in enterprises based on science and technology. His investment interests included the fields of aviation, aerospace, electronics, high temperature physics, composite materials, optics, lasers, data processing, thermionics, and nuclear power.
Venrock closed its seventh fund in July 2014 with 8 partners and its eighth fund in January 2017 with 15 partners, each fund totalling $450 million.
Investments.
Venrock invested more than $2.5 billion in more than 440 companies, resulting in 125 initial public offerings. Venrock focuses its investments on early-stage and start-up companies in information technology, healthcare and emerging technologies. These include: Intel, Apple, AppNexus, StrataCom, Check Point Software, Dapper Labs, DoubleClick, 3Com Corporation, Mosaic, PGP, Itek, Digex, Shape Security, Phoenix, Second Rotation (gazelle), RedSeal and CTERA Networks, Juno Therapeutics. It also has a significant venture in the nascent nanotechnology field, with early funding of Nanosys and the nanotech division of Du Pont. Others include BioTime.
In the healthcare sector with partners such as Bryan Roberts, Venrock has invested in athenahealth, Grand Rounds, HealthSouth Corporation, MedPartners, Inc., Castlight Health, Caliper Technologies Corporation, Centocor, Geron, senolytic startup [NITY Biotechnology, Genetics Institute, Idec Pharmaceuticals Corporation, Illumina, Millennium Pharmaceuticals, Sirna Therapeutics, and Sugen.