Tomaž Petek is a geodesy engineer and a university graduate in organisation and management of information systems. He has many years of experience in the Surveying and Mapping Authority in the field of real estate registration, spatial management, and geoinformatics. 

His first term as Director-General of the Surveying and Mapping Authority runs from 2019 to 2024. In June 2024, the Government of the Republic of Slovenia appointed him for a second term in this post. Prior to his appointment as Director-General of the Surveying and Mapping Authority, he performed various tasks within the Surveying and Mapping Authority in the field of topographic and cartographic system, geoinformatics, and national borders. From 2006 to 2009, he was Director of the Regional Geodetic Office in Ljubljana. While working on Surveying and Mapping Authority projects and setting up spatial data infrastructure, he also gained experience in the field of European Cohesion Policy and working on projects funded by international and European funds. In the field of international activities of the Surveying and Mapping Authority, in the past years he has served as a member of the standing committee for Infrastructure for Spatial Information (INSPIRE) at the European Commission and as a member of the European Commission's Geographic Information Working Group within the framework of the ISA2 programme. He has been a member of the Committee of Experts on Global Geospatial Information Management (UN GGIM Europe) of the United Nations (UN) since 2015 and Chair from 2018 to 2023. From 2000 to 2019, he chaired the Slovenian delegation to the commissions on the national borders with Austria, Italy and Hungary. He was a member of the Board of Directors of EuroGeographics, the organisation representing Europe's National Mapping, Cadastral and Land Registration Authorities, from 2011 to 2015 and was elected President of the Board of Directors of EuroGeographics in 2024.