In 2015, Natko co-authored the first book on professional lobbying in Croatia, A Professional Lobbyist – An Interest Advocacy Manual. Natko regularly contributes to the government relations and business communities, evident from his role as a founding member of the Croatian Society of Lobbyists and serving in numerous key roles since then. It is safe to say that Natko has pioneered the lobbying business in Croatia and the Western Balkans. Natko also held the position of Untitled Governor at AmCham Croatia and was a two-term external member of the Croatian Parliament’s European Affairs Committee. In 2005, he co-founded the Croatia-EU Business Council.