Sean C. Koehler


Sean is an Associate in the Litigation Department, where he represents clients in civil, criminal, and regulatory matters.

As a member of the firm's International Trade Compliance Practice Group, Sean counsels clients on compliance with the International Traffic in Arms Regulations (ITAR), the Export Administration Regulations (EAR), the Foreign Trade Regulations (FTR), and U.S. trade sanctions regulations administered by the Office of Foreign Assets Control (OFAC). His experience in this area includes conducting over eighty internal investigations into potential export violations; authoring numerous voluntary self-disclosures and directed disclosures to the U.S. government; program management of enterprise-wide compliance programs; developing corrective actions designed to address and prevent export violations; training and advising compliance personnel and in-house investigators; and performing quality control on voluntary self-disclosures prepared by in-house personnel. 

Sean recently designed and managed the implementation of a best-in-class EAR and OFAC compliance program at a global electronics company, which led to the dismissal of a federal criminal investigation. Sean has also been seconded to a leading aerospace and defense contractor, where he conducted investigations, oversaw junior in-house investigators, and developed and implemented compliance enhancements as part of the company’s continuous improvement program.

As a litigator, Sean has successfully represented indigent defendants charged with federal criminal offenses and prisoners whose civil rights were violated while incarcerated. Sean has also advised many clients about compliance with Connecticut Consumer Protection laws and regulations, including Connecticut’s medical marijuana program.

Before joining Wiggin and Dana, Sean was a judicial law clerk to Judge Alvin W. Thompson of the U.S. District Court for the District of Connecticut, an intern for Chief Judge Loretta A. Preska of the U.S. District Court for the Southern District of New York, and a research assistant to Professor John Pfaff. He received his J.D. magna cum laude from Fordham University School of Law and was presented with the Adele Monaco Memorial Award, which honors a member of the graduating class who “made a positive impact on the lives of evening division students through the demonstration of compassion, courage, determination and commitment to public service.” 

Before law school, Sean earned a B.A. in Economics and English from Cornell University and an M.A. in Quantitative Methods from Columbia University, while working full-time as a technology manager for Columbia Law School’s law clinics.

Sean is on the Public Outreach Committee for the U.S. District Court for the District of Connecticut, which works with New Haven Public School students to put on trial simulations before federal judges. He is a member of the New Haven Public Schools’ Anti-Bias, Anti-Racism (ABAR) organization and is trained in Undoing Racism.


  • Fordham University School of Law  (J.D., 2012)
    • magna cum laude
  • Columbia University  (M.A., 2007)
  • Cornell University  (B.A., 2003)

Bar Admissions

  • Connecticut
  • New York