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Ana Pirnia's practice focuses on international arbitration, public international law, and anti-corruption. She represents sovereign States in investment treaty arbitrations under the ICSID and UNCITRAL arbitration rules, as well as ad hoc arbitrations. She also advises companies and individuals on investigations and enforcement actions involving the Foreign Corrupt Practices Act (FCPA). Ana maintains an active pro bono practice with a focus on civil rights and immigration.

Ana graduated from Columbia Law School, where she served as the online editor of the Columbia Human Rights Law Review and headed the Columbia Human Rights Law Institute's Human Rights Tracker Project. Ana also worked as a legal intern with the Open Society Justice Initiative, where she authored a chapter of a handbook for designing accountability mechanisms for grave crimes.


  • Global telecommunications company in FCPA investigation involving its activities in Central America.
  • Individual in white collar criminal investigation involving OFAC sanctions.
  • AUE-based owner and developer of luxury hotels in arbitration with branded management company and services provider (LCIA).
  • Republic of Korea in multi-billion dollar investor-state claims concerning bank regulation and tax matters (ICSID).
  • South American natural gas company in a commercial contract dispute (ICC).
  • Republic of Peru in investor-state claim concerning renewable energy project (ICSID).
  • Turkish power company in multi-billion dollar investment claims against the Islamic Republic of Pakistan (ICSID).
  • Large and complex dispute between a minority hedge fund partner with majority partners under several agreements (under ICDR Rules of Arbitration) (applicable laws: New York, Delaware, Cayman Islands, and Connecticut).
  • Dispute between a non-profit providing mental health services and a website provider (under AAA Rules of Arbitration) (applicable laws: Virginia).


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  • J.D., Columbia Law School
  • M.S., Economic Law, Sciences Po Paris
  • B.A., Community Health, International Relations, Tufts University


  • District of Columbia