The Federation of Technical and Scientific Societies – MTESZ – was established in 1948. Its aim was to coordinate the work of the founder fourteen professional societies of that time, to help their collaboration and to protect their interests. Now there are forty societies in the federation; almost all Hungarian professional-scientific organizations belong to MTESZ. These organizations have approximately 70,000 members altogether, mainly engineers, researchers, agrarian, financial experts and of natural sciences, economists.