Seth H. Greenberg

Seth Greenberg is a partner at GBG where he represents labor unions and employees, and their health and welfare funds, in a wide range of labor and employment law matters, including collective bargaining, discipline and discharge, discrimination, wage and hour issues, contract disputes, seniority, and promotion. Seth routinely advises clients concerning Civil Service Law, pension and employee benefits laws, as well as other federal and state laws.

From June 2017 to June 2018, Seth served as the Chair of the New York State Bar Association’s (NYSBA) Labor & Employment Law Section. A long-time member of its Executive Committee, he previously served as co-chair of the Section’s Committee on Continuing Legal Education and, prior to that, chair of the Committee on Public Sector Labor Relations. Seth was the founding administrator and initial contributor to Labor & Employment N.Y. (“LENY”), the Section’s official blog. A member of the American Bar Association (“ABA”), Seth is a participant in the ABA’s Pro Bono Military Project Operation Standby, through which military attorneys seek attorney-to-attorney advice to further assist their service member clients.

Seth has spoken at law conferences, as part of continuing legal education programs, before trade organization meetings, and at in-house client training seminars. He co-presented a lecture on employment laws for Thomson Reuters and was a guest lecturer at Hofstra Law School’s course on collective bargaining. The topics about which Seth has presented are wide-ranging – ethics, labor law, employment law, social media in the workplace, collective bargaining, contract administration, labor arbitration, First Amendment for public employees, etc. Seth has authored several articles appearing in NYSBA’s Labor & Employment Law Journal and he is a contributor to the most recent 2016 edition (and its 2019 update) of the treatise Lefkowitz on Public Sector Labor and Employment Law, where he edited the chapter involving “Employee Rights Under the Taylor Law.”

Prior to graduating St. John’s University School of Law, Seth completed internships at the Manhattan office of the National Labor Relations Board (Region 2) and the Brooklyn office of the New York State Public Employment Relations Board.

Since 2014, Seth has been recognized annually as a “New York Metro Super Lawyer” in the area of Employment and Labor. Becoming a “Super Lawyer” is a peer-nominated honor that is earned by no more than five percent of lawyers in the State each year.

Bar Admissions

  • New Jersey, 2003
  • New York, 2004
  • U.S. District Court, District of New Jersey, 2003
  • U.S. District Court, Eastern District of New York, 2004
  • U.S. District Court, Southern District of New York, 2004
  • U.S. District Court, Northern District of New York, 2012
  • U.S. Court of Appeals for the Second Circuit, 2012


  • St. John’s University School of Law, Jamaica, New York
    J.D. – June, 2003
  • George Washington University, Washington, District of Columbia
    B.A. – May, 2000

Professional Associations and Memberships

  • New York State Bar Association (NYSBA), Member
  • NYSBA Labor & Employment Law Section, Executive Committee & Former Chair
  • American Bar Association, Member, Section on Labor & Employment Law
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