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Mark Nielsen Email & Phone Number

Adjunct Faculty at Columbia Law School
Location: New York City Metropolitan Area, United States, United States 10 work roles 2 schools
1 work email found @ftr.com 3 phones found area 203 and 800 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 86%

Contact Signals · 1 work email · 3 phones

Work email m****@ftr.com
Direct phone (203) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Adjunct Faculty
Location
New York City Metropolitan Area, United States, United States

Who is Mark Nielsen? Overview

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Quick answer

Mark Nielsen is listed as Adjunct Faculty at Columbia Law School, based in New York City Metropolitan Area, United States, United States. AeroLeads shows a work email signal at ftr.com, phone signal with area code 203, 800, and a matched LinkedIn profile for Mark Nielsen.

Mark Nielsen previously worked as Chief Legal & Regulatory Officer at Frontier Communications and Associate General Counsel and Chief Complaince Officer at Praxair. Mark Nielsen holds Doctor Of Law (J.D.) from Harvard Law School.

Company email context

Email format at Columbia Law School

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{first}.{last}@ftr.com
86% confidence

AeroLeads found 1 current-domain work email signal for Mark Nielsen. Compare company email patterns before reaching out.

Profile bio

About Mark Nielsen

Mark D. Nielsen is Chief Legal & Regulatory Officer of Frontier Communications. He is a member of Frontier’s Executive Committee and participates in the operational management and strategic planning of the Company.From 2004 to 2007, Mr. Nielsen worked for Massachusetts Governor Mitt Romney, first as Chief Legal Counsel and then as Chief of Staff. As Chief Legal Counsel, he provided advice on legal aspects of policy decisions, drafted legislation and executive orders, and served as the Governor’s principal advisor on judicial appointments. As Chief of Staff, he was responsible for the Administration’s policy and legislative initiatives, as well as overseeing the daily operations of state government.Prior to joining Frontier in 2014, Mr. Nielsen held in-house legal positions at Raytheon Company and Praxair Inc.Mr. Nielsen began his legal career in 1990 as an associate with the Hartford law firm of Murtha Cullina LLP. He also served three two-year terms in the Connecticut Legislature: One term in the House (1993-1995) followed by two terms in the Senate (1995-1999).Mr. Nielsen is an honors graduate of Harvard College and Harvard Law School. He serves on the adjunct faculty of Columbia Law School.

Current workplace

Mark Nielsen's current company

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Columbia Law School
Columbia Law School
Adjunct Faculty
New York, NY, US
AeroLeads page
10 roles · 37 years

Mark Nielsen work experience

A career timeline built from the work history available for this profile.

Chief Legal & Regulatory Officer

Current

Dallas, Texas, US

Executive with leadership responsibility for legal and regulatory affairs, facilities and real estate, and public relations for telecommunications company with 2019 revenues of $8.1 billion.

Mar 2014 - Present

Associate General Counsel And Chief Complaince Officer

Danbury, CT, US

Responsible for all transaction and regulatory matters for services subsidiary. Led SEC compliance and corporate secretarial functions. Chaired ethics and compliance program.

2009 - 2014 ~5 yrs

Vice President And Assistant General Counsel

Arlington, VA, US

Prepared all SEC filings and annual Corporate Responsibility Report. Coordinated disclosure review in connection with quarterly financial closing process.

2007 - 2009 ~2 yrs

Chief Of Staff (2006-2007) And Chief Legal Counsel (2004-2006)

Office Of Massachusetts Governor Mitt Romney

Responsible for the administration's policy and legislative initiatives, as well as overseeing the daily operations of Massachusetts state government. Advised Governor on all legal aspects of policy decisions, provided advice and representation on ethics compliance matters, and served as principal advisor on over 75 judicial appointments.

2004 - 2007 ~3 yrs

Legal Consultant

Independent Legal Consultant

Business and real estate real estate practice.

1993 - 2003 ~10 yrs

State Representative (1993-95) And State Senator (1995-99)

Connecticut State Legislature

Represented constituents in the Greater Danbury area. Served on the Appropriations, Energy & Technology, and Human Services Committees.

1993 - 1999 ~6 yrs

Associate Attorney

Hartford, Connecticut, US

Associate attorney in litigation department of top-five Connecticut law firm. Worked directly with firm's co-founding partner in representing a state agency in a major labor arbitration. Attorney on a Connecticut Supreme Court appeal establishing a frequently cited construction-law precedent (Okee Industries v. National Grange Mutual Insurance Co., 225.

1990 - 1993 ~3 yrs

Law Clerk To Justice Neil Lynch

Massachusetts Supreme Judicial Court
1989 - 1990 ~1 yr
2 education records

Mark Nielsen education

Doctor Of Law (J.D.)

Harvard Law School

A.B., Government

Harvard University
FAQ

Frequently asked questions about Mark Nielsen

Quick answers generated from the profile data available on this page.

What company does Mark Nielsen work for?

Mark Nielsen works for Columbia Law School.

What is Mark Nielsen's role at Columbia Law School?

Mark Nielsen is listed as Adjunct Faculty at Columbia Law School.

What is Mark Nielsen's email address?

AeroLeads has found 1 work email signal at @ftr.com for Mark Nielsen at Columbia Law School.

What is Mark Nielsen's phone number?

AeroLeads has found 3 phone signal(s) with area code 203, 800 for Mark Nielsen at Columbia Law School.

Where is Mark Nielsen based?

Mark Nielsen is based in New York City Metropolitan Area, United States, United States while working with Columbia Law School.

What companies has Mark Nielsen worked for?

Mark Nielsen has worked for Columbia Law School, Frontier Communications, Praxair, Raytheon, and Office Of Massachusetts Governor Mitt Romney.

How can I contact Mark Nielsen?

You can use AeroLeads to view verified contact signals for Mark Nielsen at Columbia Law School, including work email, phone, and LinkedIn data when available.

What schools did Mark Nielsen attend?

Mark Nielsen holds Doctor Of Law (J.D.) from Harvard Law School.

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