This chapter gives an introduction to regional clustering tendencies of Hungarian automotive and ICT sectors. Regional concentration patterns of these two sectors are shown using various measures (number of firms, number of employees, value added, export value). Regional location quotient is also calculated (LQ) in order to select those regions where clustering might happen and analyse these locations over the first half of the 2000s. The ownership structure is also outlined for every region in the beginning and end of the period. The findings suggest that there is no archetype of clustering tendency in Hungary and that a wide variety of regional dynamics are present in both sectors. One might find that agglomeration economies are strongly affected by the location of foreign-owned companies.