Visualising and analysing public procurement data


This project is an innovation action, meaning that the majority of work is focused on the implementation of novel approaches and technologies in the public procurement data accessibility and analysis. Website:

What problem is the project is addressing?

The project’s original objective was to make the procurement processes in Europe more accessible. Throughout the project, we successfully developed technologies for the automatic collection and normalisation of tenders and awards data. This effort culminated in the creation of a comprehensive European Procurement Knowledge Graph, containing millions of detailed contract and tender data from various countries. To facilitate widespread access, we standardised the data in the OCDS format and engineered several tools for the analysis and visualisation of the collected data. Successful testing of these tools across various business cases validated their effectiveness and reliability.

How is it solving the problem?

We created an online toolkit to explore public spending and tender data in order to make public procurement more efficient and transparent. We developed an online anomaly detection platform that uses procurement data from the project’s Knowledge Graph and Slovenian financial transactions data that automatically identifies anomalies in both public tenders and financial transactions, contributing to a more transparent and efficient public procurement landscape.

What is the logic of the data in the project?

Our platform integrates diverse data sources encompassing information on procurements and companies from various countries. This data undergoes an automated process of collection, normalisation, and storage within the TBFY Knowledge Graph. The compiled data is then imported into our anomaly detection platform where it is analysed and visualised.
Who are the partners and what data will they provide?
The majority of data powering TBFY services is sourced through our partners, OpenOpps, which contributes procurement data that includes planning, tender, and award releases, and OpenCorporates, which provides comprehensive data on companies.

Tangible results

The TheyBuyForYou Platform offers a comprehensive suite of resources, including data (TBFY Knowledge Graph and Documents repository), schemas (TBFY ontology incorporating OCDS and euBusinessGraph ontologies), tools (Harvester, R4R for RESTful services, KG data ingestion pipeline, SPARQL GUI, and OptiqueVQS), and APIs (a set of core APIs developed or used in the project).

The data is published and openly licensed and accessible through a SPARQL endpoint, API, and as a data dump at An online toolkit for anomaly detection is also available at

Additionally, the European Union Innovation Radar recognizes our project as an innovation, designating our organisation as a ‘Key Innovator’ in the development of this groundbreaking initiative.


International Research Centre
on Artificial Intelligence (IRCAI)
under the auspices of UNESCO 

Jožef Stefan Institute
Jamova cesta 39
SI-1000 Ljubljana


The designations employed and the presentation of material throughout this website do not imply the expression of any opinion whatsoever on the part of UNESCO concerning the legal status of any country, territory, city or area of its authorities, or concerning the delimitation of its frontiers or boundaries.

Design by Ana Fabjan