Attorney Sean P. Moynihan is the founder and principal of The Moynihan Group.  He is a 1992 cum laude graduate of Providence College and a 2001 cum laude graduate of Suffolk University Law School’s evening division program.  He was admitted to the Massachusetts Bar in January of 2002.  He has a dynamic record of professional experience in the insurance, financial services, non-profit, and public sectors of the economy.  

Mr. Moynihan spent over a decade in the public service arena.  He served in various positions within the Massachusetts House of Representatives including Counsel to the House Ways and Means Committee, Counsel to the Office of the House Majority Leader, and Legislative Director.  During his time in the Ways and Means Committee and the Office of the House Majority Leader, Attorney Moynihan worked on a myriad of significant public policy issues – in particular - energy and the environment, life sciences/biotech, education, labor, and the administration of justice in the Commonwealth.  

Attorney Moynihan, who holds dual citizenship with the United States and Ireland, has worked with international organizations, in particular those located in Ireland and Northern Ireland.  The Moynihan Group has co-sponsored and organized the "Gateways to Tomorrow / Boston - Northwest Ireland" conferences held in Boston since October 2009.  Moynihan's efforts in establishing links between his home state of Massachusetts and Ireland was the subject of this article published by the Irish Echo.   

Attorney Moynihan serves as Chairman/President of Irish Network Boston (IN Boston) and as Vice President for Global Partnerships of the Boston Irish Business Association [BIBA].  He also serves on the Irish International Immigrant Center's (IIIC) Internship Advisory Panel.  His past volunteer efforts include serving as a "Connector" with the former Boston World Partnerships (BWP) non-profit organization and as a trustee of the Irish Pastoral Centre.

Mr. Moynihan is a former Chairman of the Northboro Democratic Town Committee of Northboro, MA.  He has managed and worked on numerous municipal, state legislative, congressional, and presidential campaigns.         


Attorney Moynihan has been recognized for his efforts during his educational and professional careers.  In February of 2009 he was named one of the Irish Echo’s top 40 under 40 award recipients and was recognized as 1 of 5 to receive the "Outstanding Young Leader Award" from the Irish Echo and the Presidents' Club of Belfast, Northern Ireland.  In 2012, The Moynihan Group, LLC was named to the "Irish Small Business Top 50".    

During his first year of law school, Mr. Moynihan was recognized as Best Oral Advocate.  His firm grasp of the legislative process and his ability to effectuate productive relationships was recognized in 1995 when he was named Freshman Legislative Aide of the Year by the House Majority Leader and in his subsequent promotions to higher level staff positions within the Massachusetts House of Representatives.  

Attorney Moynihan resides in Hingham, MA with his wife Lynn and their children Maeve and Declan. He can be reached at  

The Moynihan Group, LLC; 11 Beacon Street, Suite 615; Boston, MA 02108
T. (617) 778-0384, F. (617) 778-0385; M. (617) 529-5899