The main information portal is available at stat.gov.pl consists of 22 separate projects, linked together by a common CMS system into one big, well-functioning system. We were responsible for the analysis of the existing CSO website and its traffic, then we designed a functional and graphical system for their new services. The main part of our work was to prepare a complete set of portals and additional thematic services. The implementation also included the migration of data and content, preparation of integration mechanisms from held data sources by the Central Statistical Office as well as providing training for CSO employees. Thanks to the portal, various websites and databases which are publically available are visited by nearly 6 million unique usersannually. They generate more than 12 million connections and take nearly 44 TB of data in the form of collected documents. To ensure the smooth operation and high performance, Ideo designed and implemented a network of servers that support the CMS platform and services which are operating on the Edito CMS, an advanced content management system which was tailored to the client's individual requirements and fully meets their needs.