There are 2 repositories under eprocurement topic.
phase4 - AS4 client and server for integration into existing systems. Specific support for Peppol and CEF eDelivery built-in.
eForms is the notification standard for public procurement procedures in the EU. The eForms SDK is a collection of resources providing the foundation for building eForms applications.
The eProcurement Ontology provides the formal, semantic foundation for the creation and reuse of linked open data in the domain of public procurement in the EU.
Transformation rules and other artefacts for the TED Semantic Web Services
TED Semantic Web Services
model2owl documentation
TED Developer Documentation
Ceasefire contracting module for openprocurement