The Institute offers three main grades of membership – Associate, Member and Fellow. New members must generally complete an Entry Course after which they enter the Institute as an Associate. Those with a greater level of arbitral knowledge can then move on to qualify as a Member and then a Fellow. There are currently over 15,000 members in over 133 countries worldwide. They are supported by an international network of 39 branches, of which East Asia Branch is the largest.

Although the Institute headquarters is based in the UK, membership is international, with 12,000 members representing 110 different countries and approximately half of the total membership being based outside the UK.

The membership represents a wide variety of professions including Accountancy, Banking, Construction, Engineering, Insurance, IT, Law, Medicine, Property and Shipping.

The Institute also offers a student affiliateship scheme for university or other higher education students with an interest in alternative dispute resolution. For further details, please visit:

For further information about membership, please visit:

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