ECMWF aims to achieve both quality and value for money in the procurement of goods and services.

What we buy

The type of goods and services required by ECMWF vary depending on the needs of the organisation at any one time. Past tenders have included procurement of servers and desktops, cabling and infrastructure, provision of temporary office space, and the remodelling of our library.  ECMWF is currently issuing Invitations to Tender (ITTs) for Copernicus services (see below).  Copernicus ITTs are available on ECMWF's eProcurement portal.  Other (non Copernicus) procurements are listed below on this web page with the relevant documents.


Please refer to the lists of current tenders and requests for proposal to see if there are goods or services you can offer us.

As an international organisation, we are governed by our Convention and its associated financial regulations.

Tendering process

We use an open tender process in accordance with our financial regulations.

ECMWF may use its eprocurement portal for non Copernicus tenders as well. Information on how the process works for each ITT or Request for Proposal will be included in the published documentation.

To respond to ECMWF RFPs/ITTs published through ECMWF's eProcurement Portal, suppliers should register at or by clicking on the following direct link The registration process is free of charge and is managed by the Portal provider (Proactis / Due North).

Suppliers should note that ECMWF ITTs/RFPs are composed of a set of documents which can be accessed through the portal. The adverts published in the portal will contain the main document(s) of the ITT/RFP as attachments. “Online questionnaire” is the step where all documents are provided and where tenderers prepare their responses by answering questions and uploading documents in accordance with the instructions therein. Suppliers will need to “register interest” in an ITT/RFP in order to access the online questionnaire (Registering interest is a step to access the ITT/RFP and does not commit the suppliers to respond.). After registering interest please click “start/edit response” to access the online questionnaire where all documents can be found as attached to relevant questions.

Frequently asked questions for the Portal are answered here:

Please refer to the PDF iconECMWF eProcurement Portal Guidance for suppliers on how to access the ITT documents and submit a response.

If you have any questions about specific procurements, you should follow the instructions in the published documents to submit your questions.  If the procurement has been advertised in the portal you will need to express interest in the procurement in the portal and then submit your question through the portal. Please read through what we are looking for before contacting us.

Current ECMWF Copernicus tenders

Copernicus is the European Union (EU) flagship programme monitoring the earth's environment using satellite and in-situ observations. ECMWF is operating two services on behalf of the EU: the Copernicus Atmosphere Monitoring Service and the Copernicus Climate Change Service.

We publish Contract Notices in the Official Journal of the European Union (OJEU).  We have also published Prior Information Notices in the OJEU for procurements for Copernicus Services.   Other Notices and ITT's will be added from time to time so see Copernicus procurement for the latest updates.

Current non Copernicus ECMWF procurements

Current open procurement procedures (Requests for Information (RFI), ITTs or Requests for Proposal (RFPs)) are shown in the table below. Note that some of these procurement opportunities are not available in ECMWF's portal.

RFI/RFP/ITT reference RFI/RFP/ITT title Published date Closing date


Corrigendum Notice

Provision of Audit Services to ECMWF for Third Party Agreements

PRO_001 Volume I (Instructions and Conditions)

PRO_001 Volume IA (Amended Timetable)

PRO_001 Volume II (Specification of Requirements)

Note that this ITT process is conducted via ECMWF's eProcurement Portal

26 July 2023

31 August 2023, 16:00 (CEST)

14 September 2023, 16:00 (CEST)


Provision of Web content architecture and UX support

RFP_358 Request for Proposal

ECMWF_RFP_2023_358 Clarifications_02102023.pdf


15 September 2023 12 October 2023, 12:00 (UK time)

Procurement debriefing and review procedure

After you have received notification of the results of the evaluation of your bid you may request a debriefing from ECMWF.  Information about this will be included in your notification letter.

PDF iconECMWF's Procurement Debriefing and Review Procedure