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ERIH PLUS is now erih+

The new websites are designed to offer improved functionality, easier navigation, and a better overall experience. As erih+ makes the transition, some technical issues may occur. We appreciate your patience and understanding while we work to resolve any remaining bugs or errors.

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OPERAS membership.

OPERAS has has over 70 members in 25 countries, and the community is rapidly growing. On this page you will find the information you need about the kinds of memberships provided by OPERAS, and how to apply to become a member.

Last updated: 18. November 2025

OPERAS application process

To become an OPERAS member is easy. Just follow these three steps:

Send in an application

Send the signed Rules of Participation to pierre.mounier@operas-eu.org.

Rules of Participation

Answer a questionnaire

Answer this questionnaire about your organisation.

Questionnaire for you to answer.

Request an interview

Request an interview with OPERAS coordinator and OPERAS-NO. Email this request to pierre.mounier@operas-eu.org.

There are three kinds of memberships in OPERAS.

Ordinary member

Must participate in at least one Special Interest Group (SIG) equivalent to 10% Full-time Equivalent (FTE) commitment in-kind, with voting rights in the Assembly of Commons.

Core member

Must participate in the Assembly of Commons and Executive Assembly, equivalent to 20% FTE commitment in-kind, with voting rights in the Assembly of Commons and the Executive Assembly.
Core members also support OPERAS AISBL by an annual 5,000€ membership fee.

Supporting member

Must participate in the General Assembly.
Support OPERAS AISBL by an annual 10,000€ membership fee.

*Please note that the membership is reserved for organisations and is not open to individuals.