Jeffrey Simes, a partner in Goodwin’s Business Litigation group and former Chair of its Litigation Department, focuses his practice on complex business litigation, including international and domestic arbitrations, securities and corporate governance disputes, government and internal investigations, and partnership and commercial claims and disputes. Mr. Simes has worked on a wide variety of significant civil cases in federal and state courts at the trial and appellate level throughout the country, as well as in various arbitral forums in the United States and abroad.

Mr. Simes has served on Goodwin’s Management, Executive and Partnership Committees. He maintains an active pro bono practice, with a particular focus on education, homelessness and poverty issues, and has been recognized by the American Bar Association, the New York State Bar, and the Legal Aid Society for his efforts.





Mr. Simes' civil litigation includes both international and domestic arbitration as well as litigation in state and federal courts. Although he practices most frequently in tribunals that address complex business issues (such as New York and Delaware), his practice is international and his clients range from Global 500 companies to emerging technology companies. Mr. Simes regularly handles the gamut of business and corporate litigations and arbitrations including commercial, post-closing and "busted deal" disputes, shareholder derivative actions, partnership disputes and other matters involving allegations of business torts, fraud and breaches of contract or fiduciary duties. He also conducts internal investigations for various clients into diverse issues including alleged accounting improprieties, share and option granting issues and compliance. In addition, Mr. Simes counsels companies, both domestic and foreign, as to investigations and government inquiries.

Mr. Simes has prior experience as a Special Assistant District Attorney for the Middlesex County (MA) District Attorney's Office where he tried numerous criminal cases. In addition to being an experienced trial lawyer, Mr. Simes also has a successful appellate practice.

Representative Matters



  • A global electronics firm and its subsidiaries in the U.S. and Europe in an international arbitration with a major customer
  • A global pharmaceutical company in an international arbitration with a key distributor
  • A major consulting firm against retired partners on three continents
  • A private equity firm in connection with its acquisition of a defense contractor
  • A leading international security and armored car company in connection with its acquisition of an American subsidiary
  • A technology company in a post-closing dispute against its acquirer, a major private equity firm
  • A pharmaceutical company in a derivative lawsuit brought by a major investor
  • A leading health food brand against a major supplier
  • A major electronics manufacturer as to alleged accounting improprieties
  • A European pharmaceutical company in connection with allegations of drug testing irregularities
  • A web-based technology company as to disclosures and stock option granting practices
  • A real estate/hospitality company as to awarding of third party contracts
Professional Activities

With prior experience as a public school teacher in Brooklyn, NY, Mr. Simes has performed significant pro bono work in the area of education. Mr. Simes was lead counsel on behalf of a class of homeless families in Suffolk County seeking to improve homeless children's access to public schooling. Mr. Simes was also involved in litigation to improve public school funding for New York City schools, raised challenges to teacher qualification regulations of the U.S. Department of Education and has successfully represented students with disabilities.

Mr. Simes is also a member of the board of directors of the National Law Center on Homelessness and Poverty as well as the Lawyers' Committee for Civil Rights Under Law, for which he has served as chair of the Education Committee.

Professional Experience

Prior to joining Goodwin, Mr. Simes was an attorney at Simpson Thacher and Bartlett in New York City.

In 2001-02, Mr. Simes was on leave from Goodwin to serve as Special Assistant District Attorney in Middlesex County (MA). In this capacity, he prosecuted numerous crimes in the Cambridge District Court.


Mr. Simes has been awarded the New York State Bar Association Pro Bono Award and the Pro Bono Publico Award of the American Bar Association in recognition of his numerous pro bono efforts. He has also been named a New York Super Lawyer in Business Litigation.

In The News









J.D., 1996
Harvard Law School

(cum laude)

M.P.P., 1996
Harvard Kennedy School

(Kennedy Fellow)

B.A., 1990
Yale University

(summa cum laude)



New York


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Our clients rely on us for world-class advisory services, counsel on complex transactional work and high-stakes litigation. Specializing in matters involving the financial, life sciences, private equity, real estate, and technology industries, we use a collaborative, cross-disciplinary approach to resolve our clients’ most challenging issues. To find out more, please contact us.


Nos équipes interviennent aux côtés de nos clients, industriels, fonds d’investissement, startups, institutions financières et dirigeants, dans le cadre de transactions et de contentieux complexes, et apportent des conseils de tout premier plan dans les secteurs financiers, des Sciences de la Vie, du Private Equity, de l’immobilier et des technologies. Nous traitons les dossiers juridiques de manière intègre, ingénieuse, souple et audacieuse pour répondre efficacement aux enjeux propres à chacun de nos clients, quels que soient la taille de l’opération et le secteur d’activité. Pour en savoir plus, contactez-nous.

Unsere Kunden verlassen sich auf unsere erstklassige Beratung, vor allem im Hinblick auf komplexe Transaktionen und High-Stakes-Prozesse. Spezialisiert auf Angelegenheiten der Finanz-, Life-Sciences-, Private-Equity-, Immobilien-und Technologie-Branchen, verwenden wir einen kooperativen und interdisziplinären Ansatz, um Fragen unserer Kunden auch in extremen Spezialsituationen einer Lösung zuzuführen. Sie wollen mehr erfahren? Kontaktieren Sie uns gerne.

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