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Leading arbitral institutions of the world

Updated: November 2026
 
An arbitration clause is drafted when the contract is signed and there is no dispute yet. It only comes into focus when a counterparty stops paying or fails to deliver. The chosen institution determines the cost and length of the proceedings, the language, the availability of urgent interim relief and, above all, whether the award can be enforced where the debtor’s assets are.
 
Choosing an institution
There is no universally best institution.
 
The choice turns on a few practical questions:
  • where the counterparty’s assets are. The award must be enforceable in that country. More than 170 states are parties to the Convention on the Recognition and Enforcement of Foreign Arbitral Awards (New York, 1958). Recognition still has its own features in some countries, China among them;
  • the amount in dispute and the cost model. At the ICC, SIAC, CIETAC and the ICAC, arbitrators’ fees depend on the amount claimed; at the LCIA, on time spent. For smaller disputes, an expedited procedure with a sole arbitrator matters;
  • the seat of arbitration. It determines which country’s courts hear any set-aside application and whose procedural law applies;
  • language, timelines, emergency arbitration, and how closely the institution supervises the quality of awards.
Main institutions
  • ICC — International Court of Arbitration of the International Chamber of Commerce, Paris (iccwbo.org). The best-known institution for international commercial disputes. The ICC Court scrutinises draft awards before signature, which strengthens enforceability. New Rules have applied since 1 June 2026. They drop mandatory Terms of Reference, introduce early determination of manifestly unmeritorious claims and a Highly Expedited Arbitration procedure (HEAP). The threshold for automatic expedited procedure rises to USD 4 million for arbitration agreements concluded from that date;
  • LCIA — London Court of International Arbitration (lcia.org). One of the oldest institutions; most parties are not from the UK. Often chosen for finance, corporate and trade disputes;
  • SCC — Arbitration Institute of the Stockholm Chamber of Commerce (sccarbitrationinstitute.se). Traditionally popular in disputes involving Eastern European parties; also hears investment disputes;
  • Swiss Arbitration Centre (swissarbitration.org). Chosen where the parties need a neutral seat;
  • SIAC — Singapore International Arbitration Centre (siac.org.sg). The leading institution in Asia; its 2025 Rules are in force;
  • HKIAC — Hong Kong International Arbitration Centre (hkiac.org). Important for disputes with Chinese counterparties, partly because of the simplified enforcement arrangement with mainland China;
  • CIETAC — China International Economic and Trade Arbitration Commission (cietac.org). The largest Chinese institution. Chinese suppliers often insist on it, and for Ukrainian importers it is frequently the only realistic option;
  • ICDR — International Centre for Dispute Resolution of the American Arbitration Association (icdr.org). Chosen for disputes with US counterparties;
  • VIAC (Vienna, viac.eu), DIS (Germany, disarb.org) and the Court of Arbitration at the Polish Chamber of Commerce (Warsaw, sakig.pl). Regional institutions that suit disputes with Central European counterparties;
  • PCA — Permanent Court of Arbitration, The Hague (pca-cpa.org), and ICSID — International Centre for Settlement of Investment Disputes (icsid.worldbank.org). They hear disputes involving states, including investor-state disputes under bilateral investment treaties.
Ukraine as a seat of arbitration
Ukraine has the International Commercial Arbitration Court (ICAC) and the Maritime Arbitration Commission (MAC) at the Ukrainian Chamber of Commerce and Industry (icac.org.ua).
 
On 21 May 2026, Law of Ukraine No. 4856-IX of 28 April 2026 (in Ukrainian) came into force. It amended the Law of Ukraine “On international commercial arbitration” (in Ukrainian) and brought it closer to the UNCITRAL Model Law:
  • a dispute between two Ukrainian companies can now be international if the subject matter of the contract is connected with more than one state;
  • corporate disputes in companies with foreign investors, and a wider range of foreign trade disputes, have become arbitrable;
  • investment disputes involving the state can now be heard in Ukraine;
  • institutional decisions on the appointment and challenge of arbitrators can no longer be contested in state courts, which closes a common delaying tactic.
For contracts with foreign counterparties, this offers a real alternative to costly foreign institutions where the debtor’s assets are in Ukraine or in countries that recognise Ukrainian awards.