Jonathan Blackman

Cleary Gottlieb Steen & Hamilton LLP

$ $$$

Liberty Street 1
New York 10006 NY US

Jonathan I. Blackman’s practice focuses on litigation, including international litigation and arbitration, banking, and insurance law.

He has participated in numerous international arbitrations involving both public international law and complex commercial disputes, litigation involving the immunity of foreign states and their agencies under the U.S. Foreign Sovereign Immunities Act, and commercial litigation in a variety of U.S. federal and state courts.

Jonathan joined the firm in 1977 and became a partner in 1985. From 1977 to 2009, he was resident in the New York office. Since then he has been resident in New York and London.


International Arbitration (Treaty and Commercial)

  • Telecom Italia in entirely defeating a $15 billion claim, one of the largest reported commercial arbitration cases, in an ICC arbitration arising from the settlement of disputes over the control of Brasil Telecom.
  • Tatneft in an UNCITRAL arbitration against Ukraine under the Russia-Ukraine bilateral investment treaty, resulting in a nine-figure award in favor of Tatneft.
  • The Russian Federation in an UNCITRAL arbitration under the Italy-Russia bilateral investment treaty, the first-ever case under that treaty, resulting in the dismissal of all claims against it.

Litigation and Arbitration

  • The Republic of Argentina in a case before the U.S. Supreme Court addressing whether discovery in aid of execution on property of a foreign state under the Foreign Sovereign Immunities Act should be limited to property used for commercial activity in the U.S., or can extend to non-commercial assets; and in a case before the U.S. Supreme Court on the scope of review of an arbitral award under a bilateral investment treaty.
  • Vale S.A. in LCIA arbitration seated in London in a dispute arising out of a joint venture agreement related to a West African project governed by English law

International and Other Litigation

  • Republic of Argentina v. NML Capital, 134 S. Ct. 2250 (2014) (U.S. Supreme Court case on scope of discovery under Foreign Sovereign Immunities Act).
  • BG plc v. Republic of Argentina, 134 S. Ct. 1198 (2014) (U.S. Supreme Court case on scope of review of arbitral award under bilateral investment treaty).


  • Harvard Law School, J.D., 1977
  • Harvard College, A.B., 1974


  • New York
  • U.S. Supreme Court
  • U.S. Courts of Appeal, Second, Fifth, Sixth and Tenth Circuits
  • U.S. District Courts, Southern and Eastern Districts of New York, and the Eastern District of Michigan


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Liberty Street 1
New York 10006 NY US
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Lina Stillman

Broadway 42
New York 10006 NY US