What is NES?

NES is cooperation among a group of countries and organizations to facilitate the practical use of electronic collaboration in the procurement chain, based on available international standards. The initiative comprises representation from both government and industry.


The main aim of NES is to facilitate the establishment of a common platform for e-procurement among its members, and through this to

  • facilitate interoperability and practical use of e-procurement in both domestic and cross border trade
  • harmonization of different types of e-procurement documents
  • contribute to the development and use of an international standard for e-procurement.

NES Specifications

The first version of the northern European implementation of UBL 2.0, that shows how the participating countries plan to apply UBL, was made available on March 23, 2007.


Following the publication of NES version 2 in 2007 a new workshop was launched by the European Committee for Standardisation (CEN) under the workshop name Business Interoperability Interfaces (BII). The BII workshop adopted the NES deliverables and model architecture and further evolved it as a semantic specification of electronic message processes that is syntax neutral and can consequently be implemented by using different syntax. The scope of the project was also expanded to include pre award public procurement as well as adding new profiles various other specification to the list of deliverables.

As of december 2012 the BII workshop has completed two deliverables. BII1 released in late 2009 and BII2 released in early 2013.


The NES project recommends that those planning new implementations should consider implementing the BII deliverables instead of NES since the BII deliverables represent later versions of NES.

For further information on BII refer to

No further publications or updates are planned by the NES project itself.


As a matter of principle the NES project itself is not directly involved in any implementation. Actual implementations and the coordination of implementation in the various markets is defined as the responsibility of the participating countries. Based on local market needs, the participating countries have defined their own priorities and strategies for implementation of the NES deliverables.


All of the material from NES is published under the Creative Commons License.


NES would like to thank GEFEG for providing tools and support in the production of the NES deliverables.