Observe · Regulate · Protect — since 2007. 19th OIMAP General Assembly: Singapore, 10–12 June 2026. Programme
Arbitration

List of arbitrators

142 arbitrators of 48 nationalities: directory, specialisms and appointment procedure of the OIMAP Arbitral Tribunal.

Updated : October 28, 2026· 3 min read

Pages in this section

Choosing one's judges

The Calumny of Apelles, Giorgio Ghisi (1560)
The Calumny of Apelles, Giorgio Ghisi (1560)

What is distinctive about arbitration is that the parties choose those who will decide their dispute. The TAO list brings together 142 arbitrators selected for their competence, independence and international experience.

It is public and updated every quarter. Each entry states languages, specialisms, cases already handled and availability. The parties may choose from the list or, with the president's agreement, outside it.

This section presents the directory, the specialisms and appointment.

  • Arbitrators
  • List
  • Independence

List of arbitrators in figures

142Arbitrators listed
48Nationalities
41%Share of women
11Languages spoken

Source: Registry of the OIMAP Arbitral Tribunal.

Three pages

Breakdown

Europe42%
North America20%
Asia-Pacific17%
Middle East and Africa13%
Latin America8%

Origin of the arbitrators.

Portrait of Sandford Peacocke, William Wood (1801)
Portrait of Sandford Peacocke, William Wood (1801)
Woman Sitting Reading , Georges Lemmen (1905)
Woman Sitting Reading , Georges Lemmen (1905)
Portrait Bust of a Man (27 BCE–14 CE)
Portrait Bust of a Man (27 BCE–14 CE)

A living list

The list is reviewed every five years: each arbitrator must show activity, availability and continuing training. Arbitrators who have received no appointment in three years are contacted to confirm that they wish to remain listed.

New names are added each year, after a call for applications and review by the council. Diversity of legal traditions and experience is an explicit selection criterion.

How to read an entry

Each entry includes the arbitrator's photograph, languages, career, specialisms, number of cases handled, availability and any publications. A section flags declared links with market operators.

Entries contain neither assessment nor ranking: the tribunal does not publicly evaluate its arbitrators, but the parties may give feedback to the quality committee.

Mandatory list or free choice

The parties are not obliged to choose from the list. They may propose an outside arbitrator, who must be confirmed by the president and sign the declaration of independence and the code of ethics. In practice, 88% of appointed arbitrators come from the list.

Failing agreement by the parties, the tribunal's council appoints the arbitrator from the names on the list, taking account of languages, specialism and availability.

Contact with an arbitrator before appointment

A party may question a prospective arbitrator about availability, experience and any links. It may not discuss the merits of the case. The Registry arranges a short exchange, in the presence or with the knowledge of the other party, to guarantee equality.

These rules aim to avoid any suspicion of partiality. A non-compliant contact may lead to the arbitrator's exclusion.

The list in figures

Statistics of the list
IndicatorValue
Arbitrators listed142
Nationalities48
Women41%
Cases per arbitrator per year1.2 on average

Milestones

  1. First arbitrators

    60 names.

  2. Passing the 100 mark

    Opening to new regions.

  3. Parity

    Target of 40%.

  4. 142 arbitrators

    Latest update.

The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530)
The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530)
Self-Portrait, John I Smart (1802)
Self-Portrait, John I Smart (1802)
High Class Students and Teachers at Bishop Cotton School, Shimla (verso), Raja Deen Dayal (c. 1882–87)
High Class Students and Teachers at Bishop Cotton School, Shimla (verso), Raja Deen Dayal (c. 1882–87)

Availability

Arbitrator from the list or outside arbitrator

The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855)

List

Listed
  • Code of ethics already accepted
  • Availability displayed
  • Simple choice

Usual method.

Portrait of a Man, Louis Lafitte (1793)

Outside

Proposed by a party
  • Particular knowledge
  • Confirmation by the president
  • Additional time

Special case.

Choosing an arbitrator

  1. Define

    Needs: language, field.

  2. Search

    Directory.

  3. Check

    Links and availability.

  4. Propose

    Inform the other party.

  5. Confirm

    Validation by the council.

Selection criteria

An arbitrator

Bookplate:  Boylston Medical Library, George Girdler Smith (1806–39)
« What the parties expect from an arbitrator is above all that he or she listens with equal attention to both sides. »
Pr. Isabelle Cornet, arbitrator

Vocabulary of arbitrators

Directory
Detailed list of arbitrators.
Specialism
Field of expertise.
Appointment
Appointment of an arbitrator.
Declaration of independence
Written statement of any links.

Frequently asked questions

Is the list public?

Yes.

When is it updated?

Every quarter.

May I contact an arbitrator?

Not directly: go through the Registry.

Where can I see the specialisms?

Useful documents

Contacts

Eighteen Views of Rome: The Piazza Farnese (recto), Lievin Cruyl (1664)
Eighteen Views of Rome: The Piazza Farnese (recto), Lievin Cruyl (1664)
Registry of the Arbitral Tribunal (TAO)Paris — Head Office+33 1 00 00 04 00greffe.tao@oimap.exampleMonday to Friday, 9 a.m. – 5 p.m.

Consult the directory

Portrait of a Woman, Corneille de Lyon (c. 1540)

Search for an arbitrator.

Directory
Image credits (22)
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