Our People - Board of Directors

Our People - Board of Directors

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Arunas A. Chesonis, Chairman of the Board Arunas A. Chesonis, Chairman of the Board
Arunas A. Chesonis has served as Chairman of the Board, President and Chief Executive Officer of PAETEC Holding since August 2006. Mr. Chesonis has served as Chairman of the Board, President and Chief Executive Officer of PAETEC Corp., of which he was the founder, since its formation in May 1998 and as Chairman of the Board, President and Chief Executive Officer of a principal operating subsidiary, PaeTec Communications, Inc., since July 1998.

Mr. Chesonis was appointed as President of ACC Corp. in February 1994 and was elected to its board of directors in October 1994. Mr. Chesonis joined ACC in May 1987 as Vice President of Operations for the U.S. business unit and was named President of ACC Long Distance Corp. in January 1989. Mr. Chesonis also served as President of ACC’s Canadian operations and Managing Director of ACC’s U.K. enterprise. Before he joined ACC, Mr. Chesonis held several positions within Rochester Telephone Corporation, now known as Frontier Communications Corporation, a subsidiary of Citizens Communications Company.
Richard T. Aab, Vice Chairman and Director Richard T. Aab, Vice Chairman and Director
Richard T. Aab has served as Vice Chairman of the Board of PAETEC Holding, a director position, since February 2007. Mr. Aab co-founded US LEC Corp. in June 1996 and served as its Chairman of the Board from June 1996 to February 2007, when US LEC was acquired by PAETEC Holding.

In 1982, Mr. Aab co-founded ACC Corp. Between 1982 and 1997, he held various positions with ACC, including Chairman of the Board, Chief Executive Officer, President and director. Also during that period, he served as Chairman and director of ACC’s international subsidiaries in Canada, ACC TelEnterprises, Ltd., and the United Kingdom, ACC Long Distance UK Ltd. Mr. Aab is a member of the boards of trustees of the University of Rochester, the University of Rochester Medical Center and Rochester Institute of Technology, and is a director of several corporate businesses, including E-chx, Inc., a nationwide payroll processing company, of which he serves as Chairman. From May 2007 to May 2008, Mr. Aab served on the board of directors of Medifast, Inc.
Shelley Diamond, Director Shelley Diamond, Director
Shelley Diamond was appointed to the PAETEC Holding board of directors on March 6, 2009. She has served since December 2009 as the Global Managing Partner for Young and Rubicam, or “Y&R,” an advertising agency, responsible for several large, multinational clients. In this role, she oversees all services rendered by Y&R to these clients around the world. She is also a member of the Y&R board of directors.

From July 2007 until December 2009, she served as the Managing Director of the New York office of Y&R, in which role she led the day-to-day operations of the agency, formulating and implementing strategic direction, attracting talent, expanding the office’s new media and digital capabilities, and cultivating new business from both existing and new clients. Ms. Diamond served in various other roles at Y&R since joining the firm in 1991, including Director of Client Services. Before joining Y&R, Ms. Diamond held various positions at Ted Bates Advertising, at Grey Advertising and at Foote Cone and Belding, an advertising agency.
H. Russell Frisby, Jr., Director H. Russell Frisby, Jr., Director
H. Russell Frisby, Jr. has served as a director of PAETEC Holding since February 2007 and as a director of PAETEC Holding’s predecessor company, PAETEC Corp., since January 2007. Mr. Frisby is a partner in the Energy and Telecommunications Group of Stinson Morrison Hecker LLP, a law firm. Mr. Frisby’s legal practice focuses on regulatory and corporate matters affecting entities in the communications, energy and technology areas, and for over 20 years he has represented clients in a wide variety of proceedings before the Federal Communications Commission, state utility commissions and federal courts.

Before joining Stinson Morrison Hecker in July 2009, Mr. Frisby was a partner with the law firms Fleischman and Harding LLP from March 2006 to July 2009 and Kirkpatrick & Lockhart Nicholson Graham LLP from March 2005 to March 2006. From February 1998 to March 2005, Mr. Frisby was the President, Chief Executive Officer and Acting Chief Legal Officer of the Competitive Telecommunications Association (CompTel). Before his service in that position, he served as Chairman of the Maryland Public Service Commission.
Tansukh V. Ganatra, Director Tansukh V. Ganatra, Director
Tansukh V. Ganatra has served as a director of PAETEC Holding since February 2007. Mr. Ganatra co-founded US LEC in June 1996, served as a director of US LEC from June 1996 to February 2007 and served as interim Chief Executive Officer of US LEC from November 2006 to February 2007. He served as Chief Executive Officer and Vice Chairman of the board of directors of US LEC from July 1999 until his retirement in December 2001.

Mr. Ganatra also served as President and Chief Operating Officer of US LEC from June 1996 until July 1999. From 1987 to 1997, Mr. Ganatra held various positions with ACC Corp., an international telecommunications company in Rochester, New York, including service as its President and Chief Operating Officer. Before joining ACC, Mr. Ganatra held various positions during a 19-year career with Rochester Telephone Corporation, now known as Frontier Communications Corporation, a subsidiary of Citizens Communications Company, culminating with the position of Director of Network Engineering.
Michael C. Mac Donald, Director Michael C. Mac Donald, Director
Michael C. Mac Donald has served as a director of PAETEC Holding since February 2007 and as Lead Director since March 2010. Mr. Mac Donald is currently retired.

He served as a director of US LEC Corp., a competitive communications provider, from April 2003 to February 2007, when US LEC was acquired by PAETEC Holding. Before his retirement on December 31, 2009, Mr. Mac Donald held various sales and marketing positions with Xerox Corporation, a provider of document management technology and services, beginning in 1977. These positions included President of Xerox Marketing Operations and, most recently prior to his retirement, Senior Vice President, Operational Effectiveness. Mr. Mac Donald is a director of Medifast, Inc. and of the Jimmy V Foundation.
William R. McDermott, Director William R. McDermott, Director
William R. McDermott has served as a director of PAETEC Holding since February 2007 and as a director of PAETEC Corp. since March 2004. Mr. McDermott is the co-Chief Executive Officer of SAP AG, a provider of business software solutions headquartered in Walldorf, Germany. In this capacity, and also as a member of the Executive Board of SAP, he oversees SAP’s strategic business activities relating to sales, all customer operations and ecosystem activities.

Before joining SAP, Mr. McDermott served as the Executive Vice President, Worldwide Sales & Operations of Siebel Systems, a business software provider, as President of Gartner, Inc., a provider of research and analysis on the information technology industry, and on the boards of directors of two subsidiaries of Xerox Corporation. Mr. McDermott is also a director of Under Armour, Inc. and Ansys, Inc.
Alex Stadler, Director Alex Stadler, Director
Alex Stadler has served as a director of PAETEC Holding since June 2008. Mr. Stadler previously served on the board of directors of McLeodUSA Incorporated, a competitive communications provider, from January 2006 until its acquisition by PAETEC Holding on February 8, 2008.

From 1999 until 2002, he served as Chief Executive Officer of Riodata NV, a data services carrier specializing in private network and Internet access and connectivity for medium-sized companies. A wholly-owned subsidiary of Riodata NV filed for bankruptcy protection under the laws of Germany during the time that Mr. Stadler served as an officer for its controlling shareholder. Before joining Riodata NV, Mr. Stadler served as Chief Operating Officer of Otelo Communications, a competitive local exchange carrier, and as Chief Executive Officer of RWE Telliance AG, a German telecommunications company. Mr. Stadler joined GTE Corporation in 1977, and from 1985 to 1996 served in a variety of senior management positions at GTE’s cellular and telephone subsidiaries and as GTE’s head of mergers and acquisitions. Since 2002, Mr. Stadler has pursued private interests. Mr. Stadler started his career as an Economist at the Reserve Bank of Rhodesia.
Keith M. Wilson, Director Keith M. Wilson, Director
Keith M. Wilson has served as a director and as Executive Vice President and Chief Financial Officer of PAETEC Holding since August 2006. Mr. Wilson has served as Executive Vice President and Chief Financial Officer of PAETEC Corp. and PaeTec Communications, Inc. since January 2001, and as a director of PAETEC Corp. since March 2006.

From June 1999 until January 2001, Mr. Wilson served as Vice President and head of the Telecommunications Finance Group at Union Bank of California, where he focused on sourcing and providing capital for telecommunications services companies in the wireline, wireless and data services markets. From March 1998 until May 1999, Mr. Wilson was a Vice President of Merchant Banking and head of Syndicated Finance for First Dominion Capital, based in New York. Mr. Wilson also held positions with NationsBank from September 1996 until March 1998, Bank of Boston and Fleet Bank. Mr. Wilson serves on the board of directors of the Rochester Philharmonic Orchestra.
Mark Zupan, Director Mark Zupan, Director
Mark Zupan has served as a director of PAETEC Holding since February 2007 and as a director of PAETEC Corp. since May 2006. Mr. Zupan is dean of the William E. Simon Graduate School of Business Administration at the University of Rochester, a position which he has held on a full-time basis since January 1, 2004.

Mr. Zupan previously served as dean and professor of economics at the University of Arizona’s Eller College of Management from 1997 to 2003. Before his University of Arizona appointment, Mr. Zupan taught at the University of Southern California’s Marshall School of Business, where he also served as associate dean of master degree programs. He was a teaching fellow in Harvard University’s Department of Economics while pursuing his doctoral studies at the Massachusetts Institute of Technology, and has been a visiting faculty member at the Amos Tuck School of Business Administration at Dartmouth College. Mr. Zupan is also a director of Constellation Brands, Inc. and served from 2003 to 2005 as a director of StockerYale, Inc.