- Croatian Academy of Sciences and Arts - Information about departments, education, activities and history.
- Histria - The main idea of this web site is making a place on the web in order to spread knowledge about history and medical history in Southern Istria.
- Hydrographic Institute of the Republic of Croatia - Nautical charts and publications, hydrographic survey, sailing directions, notices to mariners, Morse's signals, radio service, hydrography and oceanography.
- Institute of Physics - Devoted to basic research in the fields of physics of atoms, molecules and plasma and solid state physics including surface science.
- Neandertals from Husnjakovo hill in Krapina - This archaeological find is among the richest resources of Neanderthal artifacts in the world. Includes photos and descriptions of archaeological finds.
- Ruder Boskovic Institute, Zagreb - The premier Croatian scientific institution. Site include informations about RBI, structure, news and site map.
