Българска академия на науките

Mathematical Sciences

• Institute of Mathematics and Informatics
• Institute of Mechanics
• Central Laboratory for Parallel Processing
• National Laboratory of Computer Virology

Physical Sciences

• Institute for Nuclear Research and Nuclear Energy
• Institute of Electronics
• Institute of Astronomy
• National Astronomical Observatory - Rozhen
• Astronomical Observatory Belogradchik
• Central Laboratory of Solar Energy and New Energy Sources
• Central Laboratory for Applied Physics - Plovdiv
• Central Laboratory of Optical Storage and Processing of Information

Chemical Sciences

• Institute of General and Inorganic Chemistry
• Institute of Organic Chemistry with a Center of Phyto-Chemistry
• Institute of Physical Chemistry
• Institute for Catalyses
• Central Laboratory for Electrochemical Power Sources
• Institute of Chemical Engineering
• Central Laboratory for Photoprocesses
• Institute for Polymers

Biological Sciences

• Institute of Molecular Biology
• Institute of Genetics
• Institute of Physiology
• Institute of Plant Physiology
• Institute of Microbiology
• Institute of Experimental Morphology and Anthropology
• Institute of Botany
• Institute of Zoology
• Forest Research Institute
• Institute of Experimental Pathology and Parasitology
• Institute of Biology and Immunology of Reproduction
• Institute of Biophysics
• National Museum of Natural History
• Central Laboratory of Biomedical Engineering
• Central Laboratory of General Ecology

Earth Sciences

• Geological Institute
• Geophysical Institute
• National Institute of Meteorology and Hydrology
• Central Laboratory for Geodesy
• Central Laboratory of Mineralogy and Crystallography
• Institute of Oceanology
• Geographical Institute
• Space Research Institute
• Central Laboratory of Solar - Terrestrial Influences
• Central Laboratory for Seismic Mechanics and Earthquake Engineering
• Institute of Water Problems

Engineering Sciences

• Institute of Metal Science
• Central Laboratory of Physico-Chemical Mechanics
• Institute of Computer and Communication Systems
• Institute of Information Technologies
• Institute of Control and System Research
• Central Laboratory of Mechatronics and Instrumentation

Humanities

• Institute of Bulgarian Language
• Institute of Literature
• Institute of History
• Institute of Thracology
• Institute of Archeology with Museum
• Institute of Balkan Studies
• Ethnographic Institute with Museum
• Institute of Art Studies
• Institute of Folklore Studies
• Cyrillo Methodian Research Center
• Center for Architectural Studies

Social Sciences

• Institute of Sociology
• Institute of Legal Studies
• Institute of Economics
• Center for Science Studies and History of Science
• Institute of Psychology
• Institute of Demography
• Institute of Philosophical Studies

Specialized and Supporting Units

• Central Library of BAS
• Sofia Sky Archive Data Center
• Academic Publishing House "Prof. Marin Drinov"
• Botanical Garden
• National Centre on Nanosciences and Nanotechnology
• Social - Utility Service
• Center for National Security Research
• Ph.D. Research Career Development Center