The Swedish particle physics research activities are centered at universities, with groups working on e.g. the ALICE, ATLAS, and LDMX experiments, as well as astroparticle experiments like XENON, IceCube, Hyper-Kamiokande, as well as substantial activities in theory and phenomenology research. Many groups are very involved in outreach activities with PhD students, postdocs, and faculty members organizing events at museums, giving guided tours at CERN, Masterclasses for high school students, etc. Our goals is to communicate why particle physics research is important, how it is done, and what benefit it brings to society on both the shorter and the longer time scales.

In the Netherlands, (astro)particle physics is coordinated by Nikhef, which is a collaborations between the NWO-I institute for subatomic physics and six universities. Within Nikhef, ~75 technicians and engineers, ~185 physicists and ~25 support staff work together which enables the institute to engage in the design and building of detectors, the analysis of the data from these detectors, and the development of scientific theories. Nikhef has a long history in outreach, with participation in Masterclasses, open days, high school visits, etc. These events are organised by the Nikhef scientists and the communications department. Nikhef was the first organisation signing the IPPOG MoU in 2016.

NRF-iThemba LABS (Laboratory for Accelerator Based Science)

At the tip of Africa lies the largest particle accelerator facility in the Southern Hemisphere and the only cyclotron facility of its kind on the African continent.
iThemba Laboratories for Accelerator Based Science (LABS), a research facility of the National Research Foundation (NRF), operates from sites located in Cape Town and Johannesburg offering applied and fundamental research capacity and infrastructure for accelerator-based sciences.
iThemba LABS has been producing radioisotopes for both the local and international market according to current Good Manufacturing Practice (cGMP) in specialised facilities and supplied for clinical application, for more than 30 years.

The Pierre Auger Observatory, located in the Mendoza province of Argentina, is the largest experiment in the world dedicated to the study of ultra-high-energy cosmic rays.

In Montenegro, high energy physics takes place at University of Montenegro. University of Montenegro has been a full member of several international scientific collaborations in particle physics: H1 collaboration at DESY institute in Hamburg, CMS collaboration at CERN in Geneva as well as RD50 collaboration at CERN. Scientists from University of Montenegro had participated to several other experiments during their scientific specializations. Faculty of Natural Sciences and Mathematics of University of Montenegro is devoted to rather diverse outreach activities ranging from Masterclasses to lectures for general audience during science promotion events.

México participates in several HEP laboratories around the world: CERN, Fermilab, KEK,DESY, GSI, etc., as well as some world class experiments as HAWK, Pierre Auger Labotarory, etc.
We participates in CERN´s Master Class activities, congress, workshops and several outreach activities as: Muon Day, Women Day, "Noche de las Estrellas", among others.

Greece has a long tradition in HEP since it has been one of the founding members of CERN. HEP research is carried out in Athens (both in the National and Kapodistrian as well as in the National Technical University), Aegean, Crete, Ioannina, Thessaloniki and in the National Research Centre “Democritos”. Experimental groups from Athens, Aegean, Ioannina and Thessaloniki participate in ALICE, ATLAS and CMS experiments.
Groups from Athens, Crete and Thessaloniki have been participati

The Spanish particle physics community invests a sizable effort in science outreach and promotion. Most research institutions and universities in this field carry out numerous activities, both at local level and national level. The coordination of national activities is a responsibility of the National Center for Particle, Astroparticle and Nuclear Physics (CPAN) which centralizes and manages outreach initiatives.
Both from CPAN and from the centers themselves, there is a steady participation in all the important European events and activities such as the Science Week, the European Night of Researchers, and various IPPOG masterclasses, as well as other initiatives such as "The CPAN in High Schools” a series of seminars in high schools from which thousands of students throughout Spain benefit every year.

The particle physics community in Romania is centred around CERN collaborations, carried out by physics institutes and major universities in the country (mainly: Bucharest, Cluj, Iasi, Timisoara).
The promotion of physics, of exact sciences and communication with society are important missions of these entities.
"Particle Physics Masterclasses" is the most prestigious action we do for high school students and offers us excellent feedback.