White Plains
New York City
San Francisco

Mark T. Caron

Mark T. Caron

Director, New York
Bentley College, B.S.
University of Maine School of Law, J.D.

Email: mcaron@gmgconsulting.com
Phone: (415) 227-2405

Mark has almost 40 years of experience as a tax professional and leader. He recently joined the firm to provide consulting and advice to corporate and partnership clients, with particularly deep knowledge of the issues facing the utility industry.

Mark’s lengthy career as a leader of a Fortune 100 company positions him to provide advice informed by years of working with company leadership to integrate tax solutions with financial accounting impact and company internal considerations.

His career began at Arthur Andersen in Houston in 1981. He joined Tenneco in Houston in 1985 as a Senior Tax Attorney, then Tax Counsel, followed shortly thereafter by a promotion to be the Director of Tax for the Tenneco Gas division.

In 1992, he joined Pacific Gas and Electric Company (“PG&E”) as Director of Research, Planning and Audits. In 1998, he joined PwC as the Midwest Regional Utility Tax Director, first in St. Louis, then in Chicago. In 2002, Mark rejoined PG&E in Bethesda, Maryland as head of Tax in its non-regulated subsidiary National Energy Group and then returned to PG&E. He was promoted to be Vice President of Tax and to lead the Department in 2007. He retired at yearend 2019.

Mark held a number of leadership roles in the utility industry. In 2010, he was Chairman of the EEI Tax Committee. He was co-chair of the Tax Analysis and Research Subcommittee (TARS), the group responsible for evaluating law and regulatory proposals and recommending appropriate strategies for the industry, for two cycles, 2011-2012 and 2016-2017. He is the first person to hold that position twice. Mark was also co-chair of the EEI Tax Reform subcommittee during the years leading up to the TCJA.

Mark holds a BS in Accounting from Bentley College. J.D. from the University of Maine School of Law.  He is a Texas CPA and a member of the Texas Bar.


  • Edison International
  • Food Lion
  • Bed Bath & Beyond
  • Bosch
  • Amazon
  • AT&T