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Mark Nielsen (born 1964) is an American business executive, former elected official, and attorney.

Mark Nielsen.

Nielsen's current position is Executive Vice President and Chief Legal Officer of Frontier Communications Corporation (NASDAQ: FTR), at the company's headquarters in Norwalk, Connecticut. With 2017 revenues of $9.1 billion, Frontier is America's fourth largest ILEC telephone company providing wireline voice, data and video services in 29 states.

Nielsen started his legal career in 1990 as an associate lawyer at the Hartford law firm of Murtha, Cullina, Richter & Pinney, concentrating on federal and state litigation.

Nielsen's public roles have included Republican State Representative in Connecticut (1992 to 1994), Republican State Senator in Connecticut (1994 to 1998), and staff member to Mitt Romney when Romney was Governor of Massachusetts. Nielsen served as Romney's Chief Legal Counsel from 2004 to 2006, and his Chief of Staff from 2006 to 2007, succeeding Beth Myers in that position.[1]

In his public roles, Nielsen earned a reputation for being fair-minded and willing to work across party lines. In his memoir, In My Time, Vice President Dick Cheney acknowledges that he was initially angered by Nielsen’s favorable comments about Cheney's opponent in the 2000 election, Senator Joe Lieberman, but that, upon reflection, he couldn’t disagree with what Nielsen had said about Lieberman.[2][2]

Nielsen is a graduate of Harvard College and Harvard Law School. His brother Steven Nielsen is CEO of Dycom Industries, Inc. (NYSE: DY).[3]


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  2. ^ Cheney, Dick (2012). In My Time: A Personal and Political Memoir (1st ed.). New York, NY: Threshold Editions. p. 275. ISBN 978-1-4391-7619-1.
  3. ^ Missing or empty |title= (help)
Connecticut House of Representatives
Preceded by
Lawrence Anastasia
Connecticut state representative for the One Hundred and Thirty-Eighth District
Succeeded by
David Cappiello
Connecticut Senate
Preceded by
James H. Maloney
Connecticut Senator from the Twenty-Fourth District
Succeeded by
David Cappiello
Party political offices
Preceded by
Gary A. Franks
Republican Party Nominee for the 5th Congressional District of Connecticut
1998 (lost), 2000 (lost)
Succeeded by
Nancy L. Johnson