Jason Cyrulnik

Jason is a leading commercial litigator with extensive experience representing clients in a broad range of complex disputes. Repeatedly named one of New York Super Lawyer’s Rising Stars, Jason has successfully led litigation teams in some of his firm’s most complex matters and secured for his client’s outstanding results inside and outside of the courtroom. He has represented both plaintiffs and defendants in federal and state courts, at both the trial and appellate levels and in a variety of arbitrations.

Jason has represented many of the country’s largest energy companies, trade associations, and stakeholders in their most important and highest-stakes matters, where his work helped shape the future of retail and wholesale energy industries across jurisdictions.  He also has successfully represented clients in a diverse range of commercial matters involving high-stakes securities and derivative litigations, complex real estate and contract disputes, and fiduciary conflicts.

He has broad experience in all aspects of the litigation lifecycle and deploys a creative, business-minded approach to litigation strategy and dispute resolution. As an advocate for both plaintiffs and defendants in the courtroom, boardroom, and before regulators, Jason couples a unique brand of creative thinking with a command of the facts and law that allows him to drive exceptional results for his clients.  Clients value his approach to problem-solving and aggressive advocacy, as Jason has quickly and steadily become a key asset for his clients – someone to whom clients turn for guidance and strategic thinking beyond the scope of a legal dispute. 

Jason’s litigation career began early when at Yale Law School, he was selected to brief and successfully argue an appeal before the Connecticut Supreme Court on behalf of an indigent defendant, in conjunction with the Jerome N. Frank Legal Services Organization.

After practicing for 15 years at Boies Schiller Flexner LLP, Jason left the firm in 2020 to lead a litigation boutique.

Jason’s representations include:

  • Defending a multi-billion-dollar company and its executives against allegations of securities fraud and violations of fiduciary duty
  • Defending a public telecommunications company against nine-figure claims alleging contractual rights to the company’s assets
  • Representing a coalition of energy companies seeking to overturn state regulatory efforts to eliminate retail energy choice in New York
  • Representing a partnership in enforcing a decades-old $50 million contract against a high-net-worth estate seeking to evade its obligations
  • Defending leading global investment management firm against commodities manipulation class action filed in federal court in Illinois
  • Representing a prominent condominium developer in litigation in state court seeking to block the developer’s projects
  • Representing a large telecommunications company in litigation in Washington state court against another large telecommunications company concerning an alleged $44 million breach of contract for pre-paid wireless services
  • Appellate attorney for a high net-worth art collector concerning the disputed ownership of his collection
  • Representing the ultimate owner of several hydroelectric facilities in New York in parallel litigation in federal court against the manager/operator of the facilities, and against a security trustee, for mismanagement of the facilities and of the owner’s funds, seeking over $20 million in damages
  • Representing a condominium developer in litigation in federal and state court against the Attorney General of the State of New York and others, concerning the Attorney General’s administrative determinations over real estate contractual rights
  • Representing a software manufacturer in litigation in federal court against two large computer companies concerning the development of the Linux operating system and the ownership of UNIX copyrights. Co-lead attorney in two-week bench trial and three-week jury trial

The matters discussed above include representations at previous employers.


  • Yale Law School, J.D.; Senior Editor, Yale Law Journal
  • Yeshiva University, B.A., summa cum laude, Philosophy; Distinguished Scholar; Editor-in-Chief, The Commentator, official undergraduate newspaper of Yeshiva University


  • New York
  • United States District Court for the Southern District of New York
  • United States District Court for the Eastern District of New York
  • United States District Court for the Northern District of New York


  • Boies, Schiller & Flexner LLP, Partner
  • Law Clerk – Hon. Nicholas G. Garaufis, United States District Court for the Eastern District of New York



Limits on Delaware’s Tooley Standard: A Brief Survey, American Bar Association, Litigation Section, Vol. 28 Issue 4 (July 2018)

Panelist, American Bar Association Section of Environment, Energy, and Resources, 25th Fall Conference (2017)

Case Comment, Overlooking a Sixth Amendment Framework, 114 Yale L.J. 905 (2005)

Identifying a Source: Exercise in Talmudic Reasoning, Yeshiva University’s Talmudic Law Journal, Beth Isaac (2001)