10 Eversource legal leaders
Deputy general counsel, associate general counsel and assistant general counsel for federal regulatory matters are current titles held by these ten Eversource legal leaders. A reader can learn how legal leaders work at Eversource Energy from people who have held the role.
Professionals to explore
Angela Ruggiero
LinkedInExperience: Associate General Counsel · Eversource Energy
Angela Ruggiero has been Associate General Counsel at Eversource Energy since April 2026 and has also held the title Principal Counsel there since January 2024. Angela Ruggiero was Senior Counsel - Labor, Employment, and Benefits at Eversource Energy from 2016 to 2023 and Manager - Regulatory Relations there from 2013 to 2016.
Daphne Vayos
LinkedInExperience: Assistant General Counsel · Eversource Energy
Daphne Vayos has been Assistant General Counsel at Eversource Energy since October 2006, based in Berlin, Connecticut. The profile describes Daphne Vayos as a transactional attorney with national law firm training and broad in-house experience in contractual and transactional, intellectual property and data protection matters.
Duncan MacKay
LinkedInExperience: Deputy General Counsel & Chief Compliance Officer · Eversource Energy
Duncan MacKay has been Deputy General Counsel & Chief Compliance Officer at Eversource Energy since March 2013 and has also held the title Deputy General Counsel there since June 2008. Duncan MacKay was Assistant General Counsel at Northeast Utilities from 2004 to 2008, Senior Counsel at Northeast Utilities from 1996 to 2004 and Counsel at Robinson+Cole from 1988 to 1996.
Elizabeth M.
LinkedInExperience: Deputy General Counsel · Eversource Energy
Elizabeth M. has been Deputy General Counsel at Eversource Energy since July 2022. Elizabeth M. was Assistant General Counsel Competitive Businesses at Eversource Energy from 2019 to 2022, Assistant General Counsel there from 2015 to 2022, Senior Counsel there from 2013 to 2015 and Director, Corporate Procurement & Supply Chain Support there from 2012 to 2013.
Greg Butler
LinkedInExperience: Executive VP and General Counsel · Eversource Energy
Greg Butler has been Executive VP and General Counsel at Eversource Energy since August 2003, based in Glastonbury, Connecticut. Greg Butler was VP, General Counsel and Secretary at Eversource Energy from 2001 to 2003, VP, Governmental Affairs there from 1997 to 2001 and VP, Federal Affairs at NEES from 1995 to 1997.
Ken Collette
LinkedInExperience: Associate General Counsel · Eversource Energy
Ken Collette has been Associate General Counsel at Eversource Energy since May 2026, and the profile describes a focus on environmental, real estate and regulatory matters. Ken Collette was Principal Counsel at Eversource Energy from 2023 to 2026, Senior Counsel there from 2022 to 2023 and Commissioner's Designee at CT Siting Council in 2022.
Kerry Tomasevich
LinkedInExperience: Assistant General Counsel and Assistant Secretary · Eversource Energy
Kerry Tomasevich has been Assistant General Counsel and Assistant Secretary at Eversource Energy since May 2014. Kerry Tomasevich was Senior Counsel, Corporate and Finance at Eversource Energy from 2007 to 2014, Partner at Tyler Cooper & Alcorn from 2005 to 2007 and Partner at Palmer & Dodge LLP from 1996 to 2003.
Mary Grover
LinkedInExperience: Assistant General Counsel, Federal Regulatory · Eversource Energy
Mary Grover has been Assistant General Counsel, Federal Regulatory at Eversource Energy since July 2021, based in Boston, Massachusetts. Mary Grover was Senior Counsel at Eversource Energy from 1994 to 2021 and Planning Engineer at Eversource Energy from 1987 to 1994, and the profile headline gives the same current title.
Phyllis Lemell
LinkedInExperience: Assistant General Counsel - Federal Regulatory · Eversource Energy
Phyllis Lemell has been Assistant General Counsel - Federal Regulatory at Eversource Energy since January 2002, based in Berlin, Connecticut, and the profile headline gives the title as Assistant General Counsel at Eversource Energy. Phyllis Lemell was Assistant Attorney General at the Connecticut Attorney General's Office from 1982 to 1992.
Vincent Pace
LinkedInExperience: Assistant General Counsel · Eversource Energy
Vincent Pace has been Assistant General Counsel at Eversource Energy since June 2019 and has also held the title Associate General Counsel there since November 2016. Vincent Pace was Senior Counsel at Eversource Energy from 2007 to 2016, Counsel there from 2003 to 2007 and Associate at Day Pitney LLP from 1999 to 2003.
Choose the right perspective
Pick the person whose own legal area is closest to your question, since federal regulatory, corporate and finance, labor and employment, environmental and transactional work each give a different view. Check the dates on each role to see how current the experience is.
Questions to take into the conversation
- 01What took most of your time in your current legal role, and how did you decide what to handle yourself?
- 02How did you balance regulatory proceedings against day-to-day advice to the business?
- 03What did you carry over from earlier roles that changed how you lead legal work?
Reaching Eversource legal leaders
How can I contact one of these Eversource legal leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: Eversource Energy, based on profile data retrieved on October 19, 2026. Being listed here doesn't mean someone has agreed to take calls.
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Can an AI agent ask one of these Eversource legal leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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