Paul Kleist’s practice focuses on international arbitration and litigation, and he has a wide variety of experience before both international arbitration tribunals and domestic courts.

Paul has represented multinational corporations and sovereign States in complex international arbitrations conducted under the rules of the leading institutional and ad hoc arbitration regimes, including the International Chamber of Commerce (ICC), London Court of International Arbitration (LCIA), Singapore International Arbitration Centre (SIAC), UNCITRAL, and the International Centre for the Settlement of Investment Disputes (ICSID).

He also has significant experience in relation to the application of U.S. discovery rules in cross-border litigation, including the discovery statute 28 U.S.C. § 1782.

Paul became a partner in 2026. He previously was resident in the New York office from 2016-2018; prior to joining the firm, he completed a two-year federal appellate clerkship.

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Notable Experience

  • A leading technology company in connection with disputes arising from a World Bank-funded development project in Bangladesh, including an ongoing UNCITRAL arbitration and English court proceedings.

  • The Hellenic Republic in an ICSID arbitration brought by a Cypriot bank for alleged violations of the Cyprus-Hellenic Republic bilateral investment treaty arising out of the sovereign debt crisis, including in relation to complex damages issues involving expert evidence and testimony.

  • A North American automotive supplier in connection with U.S. discovery applications related to a DIS arbitration under German law.

  • The Bank of Spain in connection with claims asserted against the Kingdom of Spain in consolidated ICSID and UNCITRAL proceedings brought by shareholders in Banco Popular.

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