PREVAC is intended to provide advance equipment for professionals around the world to state-of-the-art research and development in the field of nanoscience and nanotechnology. We would like to promote the latest products, equipment, technology solutions and innovations for the photoelectron spectroscopies field. Few selected PES systems will be presented for study of important topics, including new materials, topological insulators, surface alloys, superconductors and others phenomena. Details technical descriptions from the systems and subsystems will presented for the laboratory and synchrotron research. Also, it will be displayed some new development of the cry manipulators and various types of the photoelectron spectroscopy components.