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Judith Estrin

Judith "Judy" L. Estrin is an Internet pioneer and American business executive. Former colleague Richard A. Karp credits Estrin as one of the key people in the development of Internet when they worked together with Vint Cerf on the initial TCP-project at Stanford.[1]

She is now CEO of JLabs [2](formerly called Packet Design Management Company), a privately held company focused on furthering innovation in business, government and non-profit organizations.[3] Estrin is the author of "Closing the Innovation Gap: Reigniting the Spark of Creativity in a Global Economy" (McGraw-Hill; Hardcover, September 2008), a general interest book that challenges national, academic and business leaders to work together to make USA competitive again.[4] Estrin is a serial entrepreneur who co-founded eight technology companies.[5] She was the CTO of Cisco Systems from 1998 to 2000.[3] Estrin served on the boards of FedEx Corporation (1989-2010),[3] Rockwell Automation and Sun Microsystems,[6] as well as on the Board of Directors of the Walt Disney Company for fifteen years.[5] She also serves on the advisory boards of Stanford’s School of Engineering and Bio-X interdisciplinary program, and is a member of the University of California President’s Science and Innovation Advisory Board.[7] She also served on the America Compete's Innovation Advisory Board in 2011.[8]


Estrin received a bachelor's degree in mathematics and computer science from UCLA and a master's degree in electrical engineering from Stanford University (1977).[7]


Estrin's high tech family includes Deborah Estrin, a professor of Computer Science [9] and parents, Thelma and Gerald Estrin, who were both computer scientists at UCLA.[10] Her son, David Carrico, is also a tech entrepreneur, who founded EvntLive, which later Estrin joined as CEO.[11]

Business career

While at Stanford, Estrin worked with the research group headed by Vint Cerf, a computer science pioneer often called the "Father of the Internet". Cerf's team developed the TCP/IP specification which forms the underlying technology of the Internet.[1]

After Stanford she worked at Zilog Corporation, where she contributed to the design of the Z8 and Z8000 microprocessors [12] and led the team that developed one of the first commercial local area network systems [13] called Z-net.[14]

In 1981, Estrin co-founded Bridge Communications — a network router, bridges, and communications servers company that went public in 1985 and merged with 3Com in 1987. In 1988 she joined the founding team of Network Computing Devices (NCD) as Executive Vice President, later becoming President and CEO in 1993. [15]

In 1995, she co-founded Precept Software, Inc., a developer of networking software company, and served as President and CEO until its acquisition by Cisco Systems in 1998,[16] when she became its CTO and Senior Vice President of Cisco Systems until 2000.[17]

In 2000, Estrin co-founded Packet Design, LLC, a networking technology company, with her husband Bill Carrico, with $24 million in funding from the venture firm Foundation Capital and a group of private investors, including Estrin; Carrico; James Barksdale; Bill Joy, and Frank Quattrone.[18] Packet Design later spun out three venture backed start-ups, including Packet Design, Inc.[19] She served as Packet Design, LLC’s CEO until it was dissolved, distributing its assets to investors in late 2007.

She served as a member of the boards of directors of The Walt Disney Company from 1998 until 2014, FedEx Corporation from 1989 until 2010, Sun Microsystems from 1995 through 2003 and Rockwell Corporation from 1994 through 1998. In addition, she sits on the advisory councils of Stanford's School of Engineering.


Estrin has three times been named to Fortune magazine's list of the 50 most powerful women in American business.[20]


  1. ^ a b "Interview with Richard A. Karp". Retrieved 2014-03-04. 
  2. ^ "JLabs". Retrieved 2014-03-04. 
  3. ^ a b c "Forbes Profile". Retrieved 2014-03-04. 
  4. ^ "Diversity in Innovation". Retrieved 2014-03-04. 
  5. ^ a b "Jack Dorsey Elected Walt Disney Company Board". Retrieved 2014-03-04. 
  6. ^ "Judith L. Estrin". Retrieved 2012-04-04. 
  7. ^ a b "Judy Estrin Crunchbase Profile". Retrieved 2014-03-04. 
  8. ^ "Meet the Innovation Advisory Board". Retrieved 2014-03-04. 
  9. ^ "Deborah Estrin". Retrieved 2014-03-04. 
  10. ^ "‘An Excellent Match:’ How Deborah Estrin, First Prof Chosen for CornellNYC Tech, Was Drawn to Roosevelt Island". Retrieved 2014-03-04. 
  11. ^ "‘With $2.3M From Vint Cerf & More, Tech Pioneer Judy Estrin Unveils EvntLive, The Web’s New Interactive Concert Hall". Retrieved 2014-03-04. 
  12. ^ "Oral History Panel on the Development and Promotion of the Zilog Z8000 Microprocessor" (PDF). Retrieved 2014-03-04. 
  13. ^ "Mike Throm's memories of Zilog". Retrieved 2014-03-04. 
  14. ^ "Z-NET a microprocessor based local network by Judy Estrin". Retrieved 2014-03-04. 
  15. ^ a b "2002 Women in Technology Hall of Fame". Retrieved 2014-03-04. 
  16. ^ "Cisco Systems Appoints Judith Estrin as Chief Technology Officer,Cisco Systems press release, March 11, 1998". Retrieved 2014-03-04. 
  17. ^ "Cisco Systems press release, April 3, 2000". Retrieved 2014-03-04. 
  18. ^ "Estrin Startup To Address Infrastructure Concerns". Retrieved 2014-03-04. 
  19. ^ "Packet Design". Retrieved 2014-03-04. 
  20. ^ "Judy Estrin". Retrieved 2014-03-04. 
  21. ^ "Silicon Valley Pioneer Judy Estrin to Receive 2010 GIL (Growth, Innovation and Leadership) Award from Frost & Sullivan". Retrieved 2014-03-04. 
  22. ^ "Ranking The 50 Most Powerful Women FORTUNE'S FIRST ANNUAL LOOK AT THE WOMEN WHO MOST INFLUENCE CORPORATE AMERICA". Retrieved 2014-03-04. 

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