Mark A. Floyd is a Venture Partner at TDF Ventures. Previously, Mark was the Chairman and CEO of Cyan Inc. (NYSE: CYNI), a global leader in software defined networking and packet optical solutions for carrier and enterprise networks. Mr. Floyd joined Cyan’s board in 2007 and as CEO in 2013. Ciena has announced that they have enter into a definitive agreement to acquire Cyan for approximately $400 million.


From May 2009 to May 2011, Mr. Floyd was the CEO of SafeNet, Inc., a global leader in information security protecting communications, digital identities and intellectual properties.


From August 2002 until February 2007, Mr. Floyd was president and CEO of Entrisphere, Inc., a company focused on broadband solutions, including gigabit passive optical networking (GPON), for large wireline carrier networks. Entrisphere was acquired by Ericsson in February 2007.


Prior to Entrisphere, Mr. Floyd served as president and CEO of Siemens Information and Communications Networks U.S. (ICN US) until February 2002. He was responsible for managing a $6.5 billion business consisting of Siemens’ North American enterprise and telecommunications business and it’s global broadband access business.


From 1993 to 2001, Mr. Floyd was Chairman, president and CEO of Efficient Networks, Inc. Mr. Floyd co-founded this broadband access start-up company that focused on digital subscriber line (DSL) customer premise equipment (CPE). Efficient Networks went public in 1999 and became the global leader in DSL CPE. Efficient Networks was acquired by Siemens in April 2001 for $1.7 billion in cash representing one of the largest telecommunication M&A transactions in 2001.


From 1991 until 1993 Floyd was Chief Financial Officer, Chief Operating Officer and a Director of Networth, Inc., a provider of local area networking products which was acquired by Compaq Computer Corporation for $372 million in 1994 after going public in 1992.


Earlier positions included Executive Vice President, Chief Financial Officer, and Director of Interphase Corporation (1984-1991), a provider of enterprise server connectivity solutions, and Chief Financial Officer, Senior Vice President, and Director of Scott Instruments Inc. (1981-1984), a speech recognition company. Before that, Floyd was at Texas Instruments, Inc. (1978-1981) where he was responsible for the financial operations of the consumer products division.


Mr. Floyd was the recipient of the 2001 Ernst & Young Entrepreneur of the Year award and El Dorado Ventures Entrepreneur of the Year award for 1999. He served as a senior advisor to Ericsson, Siemens, 3COM, Azure Capital, Crosspoint Venture Partners, El Dorado Ventures, and SR Funds. Mr. Floyd has also served on the board of directors of Carrier Access Corp. (NASDAQ: CACS), (acquired by Turin Networks), Occam, Inc., Riverbed Technology, Inc. (NASDAQ: RVBD) SafeNet Inc., Siemens ICN, Sonoma Systems, Inc. (acquired by Nortel), Strix Systems, SyChip, Inc. (acquired by Murata), and as chairman of NetSocket Inc. and Tekelec Inc. (NASDAQ: TKLC).


Floyd has a BBA in finance from the University of Texas at Austin and an honorary Doctorate of Science in Business from Southeastern University. Additionally, Mr. Floyd was elected to the Board of Regents of Southeastern University in 2007.