Pages in this section
Directory of arbitratorsSearch for a TAO arbitrator by name, country, language, chamber or availability, and read the entry.›
Arbitrators' specialismsAuthenticity, provenance, restitution, contracts: which arbitrators for which disputes, and how their expertise is verified.›
Appointment of arbitratorsHow arbitrators are appointed: agreement of the parties, list, declaration of independence, challenge and replacement.›
Choosing one's judges

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.
List of arbitrators in figures
Source: Registry of the OIMAP Arbitral Tribunal.
Three pages



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
| Indicator | Value |
|---|---|
| Arbitrators listed | 142 |
| Nationalities | 48 |
| Women | 41% |
| Cases per arbitrator per year | 1.2 on average |
Milestones
- First arbitrators
60 names.
- Passing the 100 mark
Opening to new regions.
- Parity
Target of 40%.
- 142 arbitrators
Latest update.



Availability
Arbitrator from the list or outside arbitrator

List
Listed- Code of ethics already accepted
- Availability displayed
- Simple choice
Usual method.

Outside
Proposed by a party- Particular knowledge
- Confirmation by the president
- Additional time
Special case.
Choosing an arbitrator
- Define
Needs: language, field.
- Search
Directory.
- Check
Links and availability.
- Propose
Inform the other party.
- Confirm
Validation by the council.
Selection criteria
An arbitrator

« What the parties expect from an arbitrator is above all that he or she listens with equal attention to both sides. »
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?
See Specialisms.
Useful documents
Contacts

Consult the directory
Image credits (22)
- Portrait of Georges Arnold Fitzwilliam, Charles Balthazar Julien Fevret de Saint-Mémin (c. 1790–1852) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Man, Italian Painter — The Metropolitan Museum of Art, CC0 1.0
- Portraits of the Qianlong Emperor and His Twelve Consorts, Giuseppe Castiglione (1736–70s) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Man, Nicholas Freese (c. 1795–1800) — Cleveland Museum of Art, CC0 1.0
- The Calumny of Apelles, Giorgio Ghisi (1560) — Cleveland Museum of Art, CC0 1.0
- Portrait Head of a Noble or Official (175–200 CE) — Cleveland Museum of Art, CC0 1.0
- St. Anthony Reading, Albrecht Dürer (1519) — Cleveland Museum of Art, CC0 1.0
- Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815) — Cleveland Museum of Art, CC0 1.0
- Portrait of Sandford Peacocke, William Wood (1801) — Cleveland Museum of Art, CC0 1.0
- Woman Sitting Reading , Georges Lemmen (1905) — Cleveland Museum of Art, CC0 1.0
- Portrait Bust of a Man (27 BCE–14 CE) — Cleveland Museum of Art, CC0 1.0
- The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530) — Cleveland Museum of Art, CC0 1.0
- Self-Portrait, John I Smart (1802) — Cleveland Museum of Art, CC0 1.0
- High Class Students and Teachers at Bishop Cotton School, Shimla (verso), Raja Deen Dayal (c. 1882–87) — Cleveland Museum of Art, CC0 1.0
- The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Man, Louis Lafitte (1793) — The Metropolitan Museum of Art, CC0 1.0
- Bookplate: Boylston Medical Library, George Girdler Smith (1806–39) — Cleveland Museum of Art, CC0 1.0
- Eighteen Views of Rome: The Piazza Farnese (recto), Lievin Cruyl (1664) — Cleveland Museum of Art, CC0 1.0
- Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Woman, Gerard ter Borch (c. 1665) — Cleveland Museum of Art, CC0 1.0
- A Lady Reading, Francis Seymour Haden (1833–1910) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Woman, Corneille de Lyon (c. 1540) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0


Directory of arbitratorsSearch for a TAO arbitrator by name, country, language, chamber or availability, and read the entry.›
Arbitrators' specialismsAuthenticity, provenance, restitution, contracts: which arbitrators for which disputes, and how their expertise is verified.›
Appointment of arbitratorsHow arbitrators are appointed: agreement of the parties, list, declaration of independence, challenge and replacement.›