Jonathan Rosenfeld

Retired Partner

Jonathan (Jon) Rosenfeld was a partner and member of the Dodd-Frank Whistleblower Working Group. Mr. Rosenfeld has extensive experience in the practice of labor and employment law.


Representing various employers, Mr. Rosenfeld has litigated cases involving discrimination, wrongful discharge, unfair competition and breach of non-competition agreements, employee benefit claims under ERISA and other matters in state and federal courts. He also has represented clients before numerous state and federal administrative agencies, including the National Labor Relations Board; the US Equal Employment Opportunity Commission; the US Department of Labor, Wage and Hour Division; the Massachusetts Department of Labor and Industries; the US Occupational Safety and Health Administration; the US Office of Federal Contract Compliance Programs; and the Massachusetts Commission Against Discrimination. He has also represented clients in collective bargaining negotiations, arbitrations and mediations.

Mr. Rosenfeld counsels clients on a variety of labor and employment issues, including compliance with state and federal labor and employment laws and regulations; hiring, firing, reductions in force; employment practices and policies; structuring the workforce (including the use of independent contractors and leased, part-time and temporary employees); and the labor and employment implications of mergers and acquisitions.

Mr. Rosenfeld has acted as labor and employment counsel to clients in the following industries: financial services, computer, Internet, telecommunications and other high technology, life sciences, pharmaceuticals, motion pictures, theater and entertainment, professional basketball, transportation, warehouse and distribution, manufacturing (including printing, paper, lumber, machinery, rubber and toys), retail (including major department stores), wholesale foods, newspaper publishing, research, education and museums, winery, hospitality, bottling, accounting, insurance, business consulting, construction and healthcare. Learn more about Mr. Rosenfeld's practice and how he can support your startup on

Mr. Rosenfeld is admitted to practice in the Commonwealth of Massachusetts, the state of Connecticut and the state of California. He also is admitted to practice before the federal courts of Massachusetts, Connecticut and the Northern District of California, and the US Courts of Appeals for the First and Ninth Circuits.

Professional Activities

Mr. Rosenfeld lectures frequently and counsels clients on workplace issues and dealing effectively with employees. He is the partner-in-charge of client training and is the co-developer of the revolutionary training program, "Managing and Retaining Employees Through Effective Communication: A Legal-Psychological Perspective."


  • Named to Boston Magazine’s Top Lawyers list in the area of labor and employment (2022–2023)
  • Selected by peers for inclusion in the 2021-2024 editions of the Best Lawyers in America in the area of labor and employment litigation.
  • Recognized as a leader in the area of labor and employment in the 2006–2023 editions of Chambers USA Guide.
  • Named a "Massachusetts Super Lawyer" in the area of employment and labor (2007–2023).

Insights & News


  • Education

    • JD, Boston University School of Law, 1986

    • AB, Brandeis University, 1983

      cum laude
  • Admissions

    • Massachusetts

    • California

    • Connecticut



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