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)
- 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)
  Dean / Deputy Dean (OKZ: 5501)
  
  Faculty Management (OKZ: 5502)
  
  Administrative Bodies and Committees (OKZ: 5503)
  
  Department of Archaeology (OKZ: 5511)
  
  Department of Asian and African Studies (OKZ: 5512)
  
  Department of Education Studies (OKZ: 5513)
  
  Head of Department (OKZ: 551301)
  
  Sections / Chairs (OKZ: 551310)
  
  Education Studies (OKZ: 551311)
  
  Empirical Research on Learning and Instruction with a Special Focus on Migration-Related Diversity (OKZ: 551312)
  
  History of Education (OKZ: 551313)
  
  Comparative and International Education (OKZ: 551314)
  
  Educational Research Methods (OKZ: 551317)
  
  Education Studies (OKZ: 551318)
  
  Schulpädagogik (OKZ: 551322)
  
  System-related School Research (OKZ: 551323)
  
  Elementary School Education Specializing in the Teaching of German (OKZ: 551324)
  
  Elementary School Education Specializing in the Teaching of Mathematics (OKZ: 551325)
  
  Elementary School Education with Focus on General Studies (Sachunterricht) (OKZ: 551326)
  
  Teaching and Didactics in Primary Step (OKZ: 551327)
  
  Educational Psychology (OKZ: 551328)
  
  Educational Psychology (Learning, Instruction and Evaluation) (OKZ: 551329)
  
  Economics Teaching (OKZ: 551331)
  
  German Teaching and Didactics in Primary Step (OKZ: 551332)
  
  Higher Education Research (OKZ: 551333)
  
  Adult and Continuing Education (OKZ: 551334)
  
  Conditions and Constellations of Adult Learning (OKZ: 551335)
  
  Mathematics Teaching and Didactics in Primary Step (OKZ: 551337)
  
  Media Education in Primary, Secondary and Higher Education (OKZ: 551338)
  
  General Elementary School Education (OKZ: 551339)
  
  Historical Educational Research (OKZ: 551343)
  
  Gender and Diversity in Education Science (OKZ: 551344)
  
  Historical Educational Research with a Focus on Digital Humanities (OKZ: 551345)
  
  Technical Support and Services (OKZ: 551390)
  
  Department of Cultural History and Theory (OKZ: 5514)
  
  Department of Art and Visual History (OKZ: 5515)
  
  Department of Musicology and Media Studies (OKZ: 5516)
  
  Department of Rehabilitation Sciences (OKZ: 5517)
  
  Department of Social Sciences (OKZ: 5518)
  
  Department of Sports Sciences (OKZ: 5519)
  
  additional Scientific Units (OKZ: 5580)
- 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)