Board of Directors


Corey Mulloy

Chairman of the Board

Corey M. Mulloy has served as a member of our Board of Directors since January 2010, and as Chairman of the Board commencing March 2013. Since 1997, he has served in several roles at Highland Capital Partners and has been a general partner since 2005. From 1995 to 1997, Mr. Mulloy worked at Robertson, Stephens & Company. Mr. Mulloy holds a B.A. degree from Swarthmore College and a M.B.A. degree from Harvard Business School.


Paul Hooper

CEO of Gigamon

Paul A. Hooper is the CEO of Gigamon and has served as a member of our Board of Directors since December 2012. He previously served as Gigamon’s Vice President of Marketing and Product Management. Paul is a networking and high tech industry veteran who joined Gigamon from Extreme Networks where he held numerous executive positions including Chief Marketing Officer, Vice President and General Manager for the Volume Products Group, and Chief Information Officer. Paul has held a broad range of leadership positions in marketing, product development, business management, and information technology within a range of organizations including Extreme Networks, myCFO, Inc., JDS Uniphase, Netscape Communications, and Sun Microsystems.


Arthur (Art) W. Coviello, Jr.

Member of Board of Directors

Arthur (Art) W. Coviello, Jr., has served as a member of our Board of Directors since April 2017, bringing to the role his extensive financial and accounting background and considerable cyber security experience. From 2011 to 2015, Mr. Coviello served as Executive Vice President of EMC Corporation and Executive Chairman of RSA and, from 2006 to 2011, as Executive Vice President/President, RSA Security Division of EMC Corporation. Prior, he also held various executive positions at RSA Security, Inc., including President and CEO from 2000 to 2006 and President from 1999 to 2000. Currently, Mr. Coviello serves on the Boards of Directors at EnerNOC, Inc., Cylance, Inc., and Bugcrowd, Inc.; and, previously, served at AtHoc, RSA Security, Inc., and Sana Security, Inc. Mr. Coviello received a B.B.A. in Accounting from the University of Massachusetts.


Joan Dempsey

Senior Partner and Executive Vice President of Booz Allen Hamilton

Joan is an Executive Vice President and Senior Partner at Booz Allen Hamilton with a leading market role in the firm’s defense and intelligence group.  She concurrently leads the Consulting Functional Service Organization (FSO), responsible for driving capability and talent development for the 8100 staff aligned to this foundational functional.  Previously Joan led three of the firm’s largest defense managed labor and intelligence accounts and was responsible for strategic development, execution, and day-to-day operations in each account. As a Senior Partner, she chairs the firm’s Sensitive Risk Review Board. For nearly a decade, Joan led the firm’s participation in the Aspen Ideas Fest where she continues as a frequent panelist on defense issues, cybersecurity and cyber operations, and women in leadership panels.

During a 25-year career in the federal government, Joan held political appointments twice: first, in President Bill Clinton’s Administration where upon Senate Confirmation, she served as the Deputy Director of Central Intelligence for Community Management; and, in President George W. Bush’s Administration, as the Executive Director of the President’s Foreign Intelligence Advisory Board.


Ted Ho

Member Of Board of Directors

Ted C. Ho has served as a member of our Board of Directors since August 2014. Mr. Ho co-founded our company in 2004 and previously served as a member of our Board of Directors from inception until his resignation in March 2013, and also served as our chief executive officer from February 2008 until his resignation in December 2012. Prior to founding our company, Mr. Ho served as vice president of engineering at Network Associates, Inc. (which later became McAfee, Inc.), from January 2001 to May 2003. From May 1998 to January 2001, Mr. Ho served as a director of engineering at McAfee. Mr. Ho holds a B.S. degree in Civil Engineering from the National Cheung-Kung University in Taiwan and an M.S. degree in structural engineering and computer engineering from the University of Southern California.


John Kispert

Chief Executive Officer and Member of the Board of Directors of Spansion, Inc

John H. Kispert has served as a managing partner of Black Diamond Ventures, a venture capital firm, since March 2016. 

Prior to Black Diamond Ventures, Mr. Kispert served as President and Chief Executive Officer and a Director of Spansion, Inc., a manufacturer of flash memory products, from February 2009 until March 2015.

Mr. Kispert serves on the Board of Directors of Gigamon Inc., a provider of network traffic visibility solutions, TriNet Group, Inc., a cloud-based professional employer organization for a small and medium-sized businesses, and Barracuda Networks, a security and storage solution provider.

Mr. Kispert holds a B.S. degree in political science from Grinnell College and an M.B.A. degree from the University of California, Los Angeles.


Paul Milbury

Member Of Board of Directors

Paul Milbury has served as a member of our Board of Directors since January 2014. Mr. Milbury served as vice president of operations and chief financial officer of Starent Networks, Corp., a provider of mobile network solutions, from January 2007 until its acquisition by Cisco Systems, Inc., a networking and telecommunications company, in December 2009. From December 2009 to July 2010, Mr. Milbury played a key role in integrating Starent Networks into Cisco to create the Mobile Internet Technology Group. From December 2000 to March 2007, Mr. Milbury served as vice president and chief financial officer of Avid Technology, Inc., a digital media creation, management and distribution solutions company. Mr. Milbury currently serves on the board of directors of Infinera Corporation, an optical networking equipment provider. Mr. Milbury also serves on the boards of directors of several privately-held companies. Mr. Milbury holds a B.B.A. in business and economics and an M.B.A. from the University of Massachusetts, Amherst.


Michael C. Ruettgers

Retired Chairman of the EMC Board of Directors

Michael C. Ruettgers has served as a member of our Board of Directors since December 2010. He is Retired Chairman of the EMC Board of Directors. During his tenure as Chairman, which began January 1, 2004 and served until December 31, 2005, Ruettgers led all facets of EMC's proactive corporate governance, with a special focus on shaping the composition and expertise of EMC's independent and fully engaged Board. Prior to that, he served as Executive Chairman of EMC's Board for three years and completed his tenure in that position in December 2003. 

Ruettgers joined EMC in 1988, and served as CEO from 1992 until January 2001, leading the company in a decade-long trajectory of accelerating profitable growth. From his arrival through year-end 2000, EMC's revenues grew from $120 million to nearly $9 billion. During his term as CEO, Ruettgers was named one of the "World's Top 25 Executives" by BusinessWeek. Ruettgers spent much of his early career with Raytheon, where he played a key role in the Patriot Missile Program. He is the Lead Director on the Board of Directors of the Raytheon Company and is also Chairman of the Board of Wolfson Microelectronics, a global leader in the supply of high- performance, mixed signal chips for the digital consumer market. Mr. Ruettgers sits on the Board of Orvis and Lahey Clinic. Ruettgers holds a BS from Idaho State University and an MBA from Harvard Business School.


Robert E. (Bob) Switz

The Chairman, President and Chief Executive Officer of ADC

Robert E. (Bob) Switz has served as a member of our Board of Directors since June 2015. He served as the chairman, president and chief executive officer of ADC Telecommunications, Inc., a supplier of broadband network equipment and software, from August 2003 until its acquisition by Tyco Electronics Ltd. (now TE Connectivity Ltd.) in December 2010. From 1994 until August 2003, he served in various senior management positions at ADC, including chief financial officer, executive vice president and senior vice president. Mr. Switz served as a director of ADC from August 2003 until December 2010 and was appointed chairman of the board of directors in June 2008. Prior to ADC, Mr. Switz was employed by Burr-Brown Corp., a semiconductor solution for wired and wireless communications, most recently as vice president, chief financial officer and director, ventures and systems business. Mr. Switz currently serves on the boards of directors for Broadcom Corporation, Cyan Inc., Micron Technology Inc., and GT Advanced Technologies Inc. Mr. Switz holds a B.S. degree in business administration from Quinnipiac University and an M.B.A. degree from the University of Bridgeport.


Dario Zamarian

Member of Board of Directors

Dario Zamarian has served as a member of our Board of Directors since February 2017. Mr. Zamarian is a senior technology executive with broad experience in the IT industry focusing on cloud software, networking, information security, systems management and IT services. His operational experience spans Fortune 100 companies, Private-Equity firms and VC-backed start-ups. He is currently an Operating Advisor with The Blackstone Group, a private equity and alternative asset management firm and serves as a Director in multiple companies. Prior to Blackstone, Mr. Zamarian was Dell's Global Vice President and Worldwide General Manager of the Enterprise Systems & Solutions and the Networking Divisions, where he was responsible for strategy and operations. Prior to Dell, Mr. Zamarian was Vice President and General Manager at Cisco in its security and routing divisions. Mr. Zamarian has an M.S.E.E. from Polytechnic of Turin, Torino, Italy and an M.B.A from INSEAD (European Institute of Business Administration), Fontainebleau, France.