O. Thomas Johnson, Jr. was a partner in the law firm of Covington & Burling LLP from 1980 until just before becoming a Judge of the Iran-United States Claims Tribunal in April 2012. Mr. Johnson’s practice focused on international commercial arbitrations, arbitrations between States and foreign investors, and land and maritime boundary disputes between States. He also advised clients concerning the application of the United States Foreign Corrupt Practices Act and similar laws of other States. From 2002 until 2009, Mr. Johnson was a member of the ICSID Panel of Arbitrators, appointed by the United States. Since 2010, he has been an adjunct professor at the Columbia Law School, where he teaches International Investment Law.

Before entering the private practice of law, Mr. Johnson served as Special Assistant to the Legal Adviser of the United States Department of State. He received both his bachelor’s and law degrees from Stanford University.