Geological Institute
Performs principal geological science research, includes brief history, departments, research, and periodicals.
http://www.geology.bas.bg/
Geophysical Institute
Conducts research in the fields of seismology, geomagnetism, gravimetry, physics of the atmosphere, ionosphere and geospace.
http://www.geophys.bas.bg/
National Institute of Meteorology and Hydrology
Gives for more than 134 years its humble information and scientific contribution to the mastering and studying of the problems related to the climate change, weather and water resources.
http://www.meteo.bg/
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