Humboldt University (OKZ: 00)
- President / Vice-Presidents (OKZ: 0100)
- University Administration (OKZ: 02)
- Administrative Bodies and Committees (OKZ: 03)
- Faculty of Law (OKZ: 10)
- Faculty of Life Sciences (OKZ: 21)
  Dean / Deputy Dean (OKZ: 2101)
  
  Administrative Bodies and Committees (OKZ: 2103)
  
  Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences (OKZ: 2111)
  
  Department of Biology (OKZ: 2112)
  
  Head of Department (OKZ: 211201)
  
  Evolutionary Ethology (OKZ: 211211)
  
  Molecular Microbiology (OKZ: 211212)
  
  Cellular Biophysics (OKZ: 211213)
  
  Biology Education (OKZ: 211214)
  
  Experimental Biophysics (OKZ: 211215)
  
  Molecular Cell Biology (OKZ: 211216)
  
  Microbiology (OKZ: 211217)
  
  Molecular Biophysics (OKZ: 211218)
  
  COMPLATn (OKZ: 211220)
  
  Ecology (OKZ: 211222)
  
  Plant Physiology (OKZ: 211223)
  
  Experimental Biophysics (OKZ: 211225)
  
  Biophysical Chemistry (OKZ: 211226)
  
  Theoretical Biophysics (OKZ: 211227)
  
  Neuronal Plasticity (OKZ: 211228)
  
  Behavioral Physiology (OKZ: 211231)
  
  Optobiology (OKZ: 211233)
  
  Computational Neuroscience (OKZ: 211236)
  
  Plant Evolution and Biodiversity (OKZ: 211243)
  
  Botany and Arboretum (OKZ: 211244)
  
  Animal Physiology/Systems Neurobiology and Neural Computation (OKZ: 211245)
  
  Molecular Genetics (OKZ: 211246)
  
  Structural Biology / Biochemistry (OKZ: 211247)
  
  Cognitive Neurobiology (OKZ: 211248)
  
  Computational Neurophysiology (OKZ: 211249)
  
  Physiology of Plant Organells (J) (OKZ: 211251)
  
  Transcriptional Regulation and Genome Architecture (OKZ: 211252)
  
  Paleobiology and Evolution (OKZ: 211253)
  
  Epidemiological Modelling of Infectious Diseases (OKZ: 211254)
  
  Ecology and Evolution molecularly Parasite-Host-Interactions (OKZ: 211255)
  
  Comparative Zoology (OKZ: 211256)
  
  Quantitative Biology of the Eukaryotic Cell (OKZ: 211257)
  
  Molecular Parasitology II (OKZ: 211258)
  
  Cellular and Molecular Biology of Plants (OKZ: 211259)
  
  Endocrinology (OKZ: 211262)
  
  Biodiversity and Public Science (OKZ: 211263)
  
  Molecular Developmental Biology and Oncology (OKZ: 211264)
  
  Cellular Biochemistry (OKZ: 211265)
  
  Paleozoology (OKZ: 211266)
  
  Systems Biology of Gene Regulation (S) (OKZ: 211269)
  
  Development and Evolution (OKZ: 211271)
  
  RNA Biology (OKZ: 211272)
  
  Structure and Dynamics of Biomolecules (OKZ: 211273)
  
  Integrative Biodiversity Discovery (OKZ: 211274)
  
  Decision Circuits (OKZ: 211275)
  
  Complexity Research in adaptive systems (OKZ: 211276)
  
  Collaborative Research Centres / Graduate Colleges / Honorary Academic Staff (OKZ: 211280)
  
  Technical Support and Service (OKZ: 211291)
  
  Senior Professor and Professors retired (OKZ: 211297)
  
  other Employees (OKZ: 211298)
  
  Department of Psychology (OKZ: 2113)
  
  additional Scientific Units (OKZ: 2180)
  
  Institutes "within" the Humboldt Universität zu Berlin and Non-affiliated Units (OKZ: 2199)
- Faculty of Mathematics and Natural Sciences (OKZ: 33)
- Faculty of Humanities (OKZ: 51)
- Faculty of Language, Literature and Humanities (OKZ: 52)
- Faculty of Humanities and Social Sciences (OKZ: 55)
- Faculty of Theology (OKZ: 60)
- Faculty of Economics and Business Administration (OKZ: 70)
- Center for the Science of Materials Berlin (OKZ: 81)
- Centre for British Studies (OKZ: 82)
- Central Institute Professional School of Education (OKZ: 83)
- Hermann von Helmholtz-Centre for Cultural Techniques (OKZ: 84)
- Integrative Research Institutes (OKZ: 85)
- Excellency Cluster (OKZ: 86)
- Humboldt Graduate School (OKZ: 87)
- Interdisciplinary Research Centres (OKZ: 88)
- Other Interdisciplinary Units (OKZ: 89)
- Central Unit - Language Centre (OKZ: 91)
- Central Unit - University Library (OKZ: 92)
- Central Unit - Computer and Media Service (OKZ: 93)
- Central Unit - Sport and Recreation (OKZ: 94)
- additional Central Institutes (OKZ: 96)
- Institutes "within" the Humboldt-Universität zu Berlin and Non-affiliated Units (OKZ: 99)