The Statistical Office co-operates with the OECD, where - due to active co-operation in various international statistical institutions and some joint Eurostat/OECD projects from the field of statistics as well as good methodological harmonisation with international statistical standards - in July 2006 Slovenia obtained the status of a permanent observer in the OECD Committee on Statistics, which was in 2007 followed by the invitation to start membership negotiations. On 10 May 2010 the OECD Council invited Slovenia, Estonia and Israel to become members of the Organisation. The signing of the Accession Agreement on Slovenia’s accession to the OECD, which took place on 1 June 2010, marked the end of the accession process and the beginning of the active work of Slovenia as a full member of the OECD also in the area of statistics.

The Statistical Office has established a good co-operation with other national statistical institutes and, on the basis of memorandums on statistical co-operation, it offers help in the field of statistics within twinnings and other international projects.

The Statistical Office co-operates with international scientific associations in the field of statistics, among them the International Statistical Institute (ISI) and its section the International Association for Official Statistics (IAOS). Ms Irena Križman, Director-General of the Statistical Office of the Republic of Slovenia, was elected President of the IAOS Executive Committee for the 209-2011 period.