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Jonathan Katz - New Haven, CT

350 Orange Street New Haven, CT 06511 - 6403

Super Lawyers®


Updated: 02/18/2024

New Haven Plaintiff's Personal Injury Lawyer


Jonathan Katz is widely recognized as one of Connecticut's most effective civil litigators. He has been selected by his peers for membership in The Best Lawyers in America® in three categories: personal injury, professional malpractice and business litigation from 2013 to the present. He was named a Connecticut Super Lawyer® by Connecticut Magazine in Personal Injury-Medical Malpractice from 2006 to 2015...

Jonathan Katz is widely recognized as one of Connecticut's most effective civil litigators. He has been selected by his peers for membership in The Best Lawyers in America® in three categories: personal injury, professional malpractice and business litigation from 2013 to the present. He was named a Connecticut Super Lawyer® by Connecticut Magazine in Personal Injury-Medical Malpractice from 2006 to 2015. Jonathan focuses his practice in two areas: representing clients seriously injured by medical malpractice or in accidents; and business litigation, including the break-up of closely held corporations. He enjoys unusual cases and has spent a fair amount of time over the past decade litigating about a pharmaceutical, invented in Branford, Connecticut, which is now a widely used prescription medicine for treating lung cancer in the People’s Republic of China.

Jonathan graduated from the University of Connecticut (B.A. 1975) and received his legal education at Northeastern University School of Law in Boston, Massachusetts (J.D., 1979). Northeastern requires students to perform four quarters of full time cooperative legal work experience. Jonathan joined the predecessor firm, Jacobs, Jacobs & Grudberg, P.C. as a co-op student in March 1979. He became a member of that firm in 1987, its President in 2004 and is presently the managing partner of Jacobs & Dow, LLC.

Jonathan has tried civil cases in the state courts and United States Tax Court, has tried many arbitrations and has argued appeals before the Connecticut Appellate Court and the Connecticut Supreme Court. He has also represented parties before local and state administrative agencies. He has served as an Attorney State Trial Referee and a Fact finder/Arbitrator for the Judicial District of New Haven. He has enjoyed a broad-based civil practice including securities litigation, securities arbitration, environmental litigation, and business dissolution matters. He was a member of the Connecticut Judicial Branch Civil Division Task Force from 1993 to 2004. Jonathan is a member of the Connecticut Trial Lawyers Association, where he has served on its medical malpractice committee and its strategic budget committee. He is a member of the Connecticut Bar Association, and the American Association for Justice. Jonathan is admitted to practice before the courts of the State of Connecticut, the United States District Court for the District of Connecticut, the United States Tax Court, the United States Court of Appeals for the Second Circuit, and the United States Supreme Court. Outside the office Jonathan has served as Chair of the Branford Clean Energy Task Force, and as a member of the Branford Conservation Commission. He also has served four terms (12 years) as a member of the Board of Directors of the Branford Land Trust.

About Jonathan Katz

Practice Areas

  • Plaintiff's Personal Injury
  • Professional Malpractice
  • Business Litigation


  • 100%

Representative Clients

  • Coregis Ins. Co. v. Goldstein, 32 F. Supp. 508, 1998, D. Conn.
  • Shirvani v. Capital Investing Corporation, 112 F.R.D. 389, 1986, D. Conn.
  • Samperi v. West Haven Inland Wetlands Agency, 226 Conn. 579, 628 A.2d 1286, 1993
  • Samperi v. Planning & Zoning Comm'n, 40 Conn. App. 840, 674 A.2d 432, 1996
  • Van Dyck Printing Company v. Johnson Graphics, Ltd., 15 Conn. App. 119, 543 A.2d 1349, 1988
  • Zanker Group LLC v. Mintz Levin Cohn Ferris Glovsky and Popeo, PC and Scott Meza, WL 2756876, 2008, D. Conn.
  • In re Star Gas Securities Litigation, 241 F.R.D. 428 D. Conn.
  • Prims v. Ciccarelli, WL 3088071, 2007
  • Faile v. Zarich, WL 2967045, 2008
  • Faile v. Zarich, WL 2036786, 2009
  • In re Publication Paper Antitrust Litigation, 2005 WL 2175139 D. Conn.
  • Monson v. The Whitby School, 2010 WL 3023873 D. Conn.
  • Westbrook Technologies, Inc. v. Wesler, 2010 WL 2826280
  • Shao v. Beta Pharma, Inc., 2016 WL 11795041 D. Conn.
  • Shao v. Beta Pharma, Inc., 2017 WL 1138124
  • Knapp v. American Cruise Lines, 2018 WL 3117543
  • Shao v. Beta Pharma, Inc. 2018 WL 1882855


Bar Admissions

  • Connecticut, 1979
  • U.S. District Court District of Connecticut, 1979
  • U.S. Court of Appeals 2nd Circuit, 1981
  • U.S. Tax Court, 1981
  • U.S. Supreme Court, 1990

Other Affiliations

  • Attorney State Trial Referee, 1991 - Present
  • New Haven County Bar Association (Member)
  • American Association for Justice (Member)
  • Connecticut Trial Lawyers Association (Member, Medical Malpractice Committee)


  • Northeastern University School of Law, Boston, Massachusetts, 1979
  • University of Connecticut, Storrs, Connecticut, 1975
    Honors: magna cum laude
    Honors: With Honors
    Honors: Phi Beta Kappa
    Major: Political Science

Office Information


350 Orange Street New Haven, CT 06511 - 6403


  • 203-772-1691

Office Hours

Monday-Friday: 9am-5pm; Saturday-Sunday: Closed


Other Sources of Feedback About Jonathan Katz

Included on the 2023 Connecticut list

Past Lists

  • 2022 Connecticut Super Lawyers list
  • 2021 Connecticut Super Lawyers list
  • 2020 Connecticut Super Lawyers list
  • 2019 Connecticut Super Lawyers list
  • 2018 Connecticut Super Lawyers list
  • 2017 Connecticut Super Lawyers list
  • 2016 Connecticut Super Lawyers list
  • 2015 Connecticut Super Lawyers list
  • 2014 Connecticut Super Lawyers list
  • 2013 Connecticut Super Lawyers list
  • 2012 Connecticut Super Lawyers list
  • 2011 Connecticut Super Lawyers list
  • 2010 Connecticut Super Lawyers list
  • 2009 Connecticut Super Lawyers list
  • 2008 Connecticut Super Lawyers list
  • 2007 Connecticut Super Lawyers list
  • 2006 Connecticut Super Lawyers list

View the profile for Jonathan Katz on Super Lawyers

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