General information

The official language of the ITER Organization is English. Contracts and purchase orders concluded by the ITER Organization shall be in writing, concluded and normally drawn up in Euros. 

Suppliers Registration 

New suppliers interested in doing business with the ITER Organization shall first register on- line: please refer to the Supplier Registration page for guidance..

Registration is needed for any supplier willing to reply to Tenders through our digital procurement tool. 

Tenderers from the following ITER Member states are eligible for tendering:

• European Union (EURATOM Members and Switzerland as from 1st January 2026)
• Republic of India
• Japan
• People's Republic of China
• Republic of Korea
• Russian Federation
• United States of America

ITER Organization reserves the right to broaden the eligibility to other countries if deemed appropriate.

Supplier Database 

The ITER Organization is introducing its new Supplier Database (SDB) on 16 November 2026.

When a supplier holds a contract or purchase order directly with the ITER Organization, this supplier may be requested to complete and maintain information in the Supplier Database.

The Supplier Database is a new digital tool designed to provide a centralized and up-to-date view of the companies contributing to the ITER Project and of the supply chains associated with ITER contracts. It will strengthen visibility, traceability and oversight of ITER's contractual supply chain, while centralizing key supplier, contract and supply-chain information. 

What does this mean for you as a prime contractor?

When your company holds a contract or purchase order directly with the ITER Organization, you may be requested to complete and maintain information in the Supplier Database.

The process starts with the ITER Procurement Responsible Officer (PRO), who reviews the initial contract information before transmitting the record to the prime contractor for completion. 

When action is required from your company, your designated prime supplier contact will receive a notification inviting them to access the SDB. Please note that the contact must have an active ICP4 account in order to receive the notification.

You will then be asked to:

• verify and complete your company information, including relevant contacts and certificates;
• review and complete the information relating to your ITER contract;
• declare the supply chain associated with the contract, including relevant subcontractors at the different supply-chain levels and the activities they perform;
• submit the completed information for ITER review and validation; and
• keep this information accurate and up to date throughout contract execution, particularly when changes occur in your supply chain. 

The SDB will also support the electronic management of requests concerning additional subcontractors. 

Training and guidance

Training and step-by-step guidance are available to help Prime contractors become familiar with the new tool and complete the required information. Please refer to the following link Supplier Database (SDB) User Manual - ICP4 Knowledge Base - Science & Integration Department (Please note that you must have an active ICP4 account in order to access the page). 

Need help?

Several support channels will be available to you should you need to access the database (details will be communicated to the Prime Contractor upon receipt of the contract or purchase order).

Thank you for your cooperation 

The active contribution of ITER's suppliers is essential to maintaining a complete, accurate and up-to-date view of the supply chain supporting the ITER Project.

We thank all contractors and suppliers for their cooperation in the deployment of the new Supplier Database.

For general information or questions, please contact: @email.