| A2LA | American Association for Laboratory Accreditation | In English | → Associations |
| AALA | American Association for Laboratory Accreditation | In English | → Associations |
| AARC | Assassination Archives and Research Center (www.aarclibrary.org) | In English | → Criminology |
| ACEL | Air Crew Equipment Laboratory | In English | → Aeronautics, aircraft |
| ACIAR | Australian Center for International Agriculture Research | In English | → Agricultural sciences |
| ADL | Advanced Development Laboratory | In English | |
| ADL | Avionics Development Laboratory | In English | → Spaceflight engineering, astronautics |
| ADLNB | Association of Designated Laboratories and Notified Bodies | In English | → Associations |
| AETL | Approved Engineering Test Laboratory | In English | |
| AFAL | Air Force Avionics Laboratory | In English | → 358 → Spaceflight engineering, astronautics |
| AFAL | Air Force Astronautics Laboratory | In English | → 358 → Spaceflight engineering, astronautics |
| AFAPL | Air Force Aero Propulsion Laboratory | In English | → 358 → Aeronautics, aircraft |
| AFATL | Air Force Armaments Test Laboratory | In English | → 358 → Military engineering |
| AFFDL | Air Force Flight Dynamics Laboratory | In English | → 358 → Aeronautics, aircraft |
| AFGL | Air Force Geophysics Laboratory | In English | → 358 → Geophysics |
| AFML | Air Force Materials Laboratory | In English | → 358 → Military engineering |
| AFRPL | Air Force Rocket Propulsion Laboratory | In English | → 358 → Spaceflight engineering, astronautics |
| AFWAL | Air Force Weapons Analysis Laboratory | In English | → 358 → Military engineering |
| AFWAL | Air Force Wright Aeronautical Laboratory | In English | → 358 → Aeronautics, aircraft |
| AFWL | Air Force Weapons Laboratory | In English | → 358 → Military engineering |
| AFWPAL | Air Force Wright-Patterson Aeropropulsion Laboratory | In English | → 358 → Aeronautics, aircraft |
| AIL | Avionics Integration Laboratories | In English | → Spaceflight engineering, astronautics |
| ALL | Alkalmazott Logikai Laboratórium = ALL | Applied Logic Laboratory | In English |
In Hungarian | → Computer science |
| ALL | Applied Logic Laboratory = (look above) |
In English | → Computer science |
| ALL | Airborne Laser Laboratory | In English | |
| AMAL | Aviation Medical Acceleration Laboratory | In English | → Medicine → Transport and postal services |
| AMAL | Aeronautical Medical Acceleration Laboratory | In English | → Medicine → Aeronautics, aircraft |
| AMFL | Aeromedical Field Laboratory | In English | → Medicine → Aeronautics, aircraft |
| APL | Applied Physics Laboratory | In English | → Physics |
| ARRI | Automation and Robotics Research Institute | In English | |
| ASC | African Studies Centre | In English | → Language, linguistics, literature → Geography, biography, history |
| ASPSL | ASPP Sortie Laboratory | In English | |
| ATL | Advanced Technology Laboratories | In English | |
| ATL | Avionics Test Laboratory | In English | → Aeronautics, aircraft |
| ATLAS | Atmospheric Laboratory for Applications and Science | In English | → Meteorology, climatology |
| AVL | Avionics Verification Laboratory | In English | → Aeronautics, aircraft |
| BfEL | Bundesforschungsanstalt für Ernährung und Lebensmittel (www.bfel.de) | In German | → Nutrition → Beverage industry → Food technology |
| BII | Bioinformatics Institute | In English | → Computer science → Building |
| BRL | Ballistic Research Laboratory | In English | → Military engineering |
| BTI | Bautechnisches Institut | In German | → Civil engineering → Building |
| BVFS | Bautechnische Versuchs- und Forschungsanstalt Salzburg | In German | → Civil engineering → Building |
| CAL | Cornell Aeronautical Laboratory | In English | → Aeronautics, aircraft |
| CALST | Cornell Aeronautical Laboratory Shock Tunnel | In English | → Aeronautics, aircraft |
| CAPS | Compilation, Architectures Parallèles et Systèmes | In French | → Computer science |
| CARE | Centre d'Anthropologie Religieuse Européenne (http://care.ehess.fr) | In French | → Religion, theology → Anthropology |
| CATIE | Centro Agronómico Tropical de Investigación y Enseñanza (www.catie.ac.cr) | In Spanish | → Agricultural sciences |
| CBS | Centraalbureau voor Schimmelcultures (www.cbs.knaw.nl) | In Dutch | → Biological sciences |
| CDC | Computer Development Center | In English | → Computer science |
| CDIAC | Carbon Dioxide Information Analysis Center | In English | → Meteorology, climatology |
| CDSL | Computer Data System Laboratory | In English | → Data |
| CEA | Commissariat à l'Énergie Atomique | In French | → Nuclear, atomic, and molecular physics → Energy economics → Engineering, technology |
| CEBTP | Centre Expérimental du Bâtiment et des Travaux Publics | In French | → Civil engineering → Building |
| CEDEM | Centar za demokratiju i ljudska prava = CEDEM | Center for democracy and human rights | In English |
In Serbian | → Democracy → Fundamental rights |
| CEDEM | Center for democracy and human rights = (look above) |
In English | → Democracy → Fundamental rights |
| CEDIM | Centre d'Études sur le Droit International et la Mondialisation (www.cedim.uqam.ca) = CEDIM | Centro de Estudios sobre Derecho Internacional y Mundialización | In Spanish |
In French | → Trade → International law |
| CEDIM | Centro de Estudios sobre Derecho Internacional y Mundialización (www.cedim.uqam.ca) = (look above) |
In Spanish | → Trade → International law |
| CEEETA | Centro de Estudos em Economia da Energia, dos Transportes e do Ambiente | In Portuguese | → Nature → Energy economics → Applied sciences, technology |
| CEGELY | Centre de Génie Électrique de Lyon | In French | → Electrical engineering |
| CEIAS | Centre d'Études de l'Inde et de l'Asie du Sud | In French | → Area studies |
| CEMEF | Centre de Mise en Forme des Matériaux (www-cemef.cma.fr) | In French | → 620 |
| CEMS | Centre d'Étude des Mouvements Sociaux | In French | → Sociology |
| CEPMMT | Centre Européen de Prévision Météorologique à Moyen Terme (www.ecmwf.int) = ECMWF | European Centre for Medium-Range Weather Forecasts | In English |
In French | → Meteorology, climatology |
| CERB | Centre de Recherches Biologiques (www.cerb.fr) | In French | → Biological sciences |
| CERIB | Centre d'Études et de Recherches de l'Industrie du Béton | In French | → Civil engineering → Building |
| CESCM | Centre d'Études Supérieures de Civilisation Médiévale (www.mshs.univ-poitiers.fr/cescm) | In French | → History |
| CETU | Centre d'Études des Tunnels | In French | → Civil engineering |
| CHAR | Centre d’Histoire de l’Art de la Renaissance | In French | → History |
| CHAVI | Center for HIV-AIDS Vaccine Immunology | In English | → Immunology and allergy → Infectious diseases |
| CICESE | Centro de Investigación Científica y de Educación Superior de Ensenada (www.cicese.mx) | In Spanish | → Research policy → Higher education, universities |
| CICP | Cambodian Institute for Cooperation and Peace (www.cicp.org.kh) | In English | → Democracy → Internal policy → International relations |
| CIDEC | Centro Interdisciplinario de Estudios Culturales | In Spanish | → Civilization, culture, progress |
| CIESIN | Center for International Earth Science Information Network | In English | → Earth sciences |
| CIHAM | Centre Interuniversitaire d'Histoire et d'Archéologie Médiévales | In French | → Archeology → History |
| CIHEAM | Centre International des Hautes Études Agronomiques Méditerranéennes (www.ciheam.org) | In French | → Agricultural sciences |
| CIHR | Canadian Institutes of Health Research (www.cihr.ca) = IRSC | Instituts de recherche en santé du Canada | In French |
In English | → Biological sciences → Medicine |
| CIMR | Cambridge Institute for Medical Research | In English | → Medicine |
| CINVESTAV | Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (www.cinvestav.mx) | In Spanish | → Specialized or (poly)technical colleges |
| CIRED | Centre International de Recherches sur l'Environnement et le Développement | In French | → Nature → Agricultural sciences |
| CIRHAC | Centre Inter-universitaire de Recherche en Histoire de l’Art Contemporain | In French | → History |
| CITI | Centre d’Innovation en Télécommunications et Intégration de services | In French | → Telecommunications |
| CITIC | Centro Andaluz de Innovación y Tecnologías de la Información y las Comunicaciones (www.citic.es) | In Spanish | → Computer science → Telecommunications |
| CLAEH | Centre Latino-Américain d'Économie Humaine (www.claeh.org.uy) = CLAEH | Centro Latino-Americano de Economía Humana | In Spanish = CLAEH | Centro Latino-americano de Economia Humana | In Portuguese |
In French | → Economics |
| CLAEH | Centro Latino-Americano de Economía Humana (www.claeh.org.uy) = (look above) |
In Spanish | → Economics |
| CLAEH | Centro Latino-americano de Economia Humana (www.claeh.org.uy) = (look above) |
In Portuguese | → Economics |
| CLGE | Central Laboratory of General Ecology | In English | → Ecology |
| CMM | Centre for Molecular Medicine | In English | → Medicine |
| CMM | Center for Molecular Medicine | In English | → Biochemistry, biophysics → Medicine |
| CMSRSC | Maritime Silk Roads Study Centre | In English | → Transport and postal services |
| CNG | Centre National de Génotypage (www.cng.fr) | In French | → Genetics |
| CNRL | Communications and Navigation Research Laboratory | In English | → Telecommunications |
| CRA | Centro Ricerche Astronomiche di Lecce (www.cralecce.net) | In Italian | → Astronomy |
| CRAHM | Centre de Recherches Archéologiques et Historiques Médiévales (www.unicaen.fr/crahm/) | In French | → Archeology → History |
| CRAPE | Centre de Recherche sur l'Action Politique en Europe | In French | → Sociology → Politics |
| CRC | Cytology Research Centre | In English | → Cytology |
| CRCIL | Centre de Recherche Cardiovasculaire INSERM-Lariboisière | In French | → Blood and circulatory system → Cardiology |
| CREATIS | Centre de Recherche et d'Application en Traitement de l'Image et du Signal | In French | → Graphical processing → Image processing |
| CREM | Centre de Recherche en Économie et Management | In French | → Economics → Management |
| CRIM | Centre de Recherche en Ingénierie Multilingue (www.crim.fr) | In French | → Language, linguistics, literature |
| CRIN | Centre de Recherche en Informatique de Nancy | In French | → Computer science |
| CRL | Communication Research Laboratory | In English | → Telecommunications |
| CRPCC | Centre de Recherches en Psychologie, Cognition et Communication | In French | → Psychology → Sociology |
| CRPL | Cosmic Ray Physics Laboratory | In English | → Astronomy → Physics |
| CSCI | Centre for the Study of Contemporary Islam | In English | → Islam |
| CSCS | Centre for the Study of Culture & Society | In English | → Civilization, culture, progress → Social sciences |
| CSDL | Charles Stark Draper Laboratory | In English | |
| CTL | Canoga Test Laboratory | In English | |
| CTL | Component Test Laboratory | In English | |
| CTP | Centre Technique du Papier (www.webctp.com) | In French | → Paper and board industry |
| DECL | Direct Energy Conversion Laboratory | In English | → Energy economics |
| DKFZ | Deutsches Krebsforschungsinstitut | In German | → Oncology |
| DRL | Double-Rack Laboratory | In English | |
| DTSL | Data Transfer Systems Laboratory | In English | → Data → Telecommunications |
| EAL | European Accreditation of Laboratories | In English | → Quality management |
| ECMWF | European Centre for Medium-Range Weather Forecasts (www.ecmwf.int) = CEPMMT (look above) |
In English | → Meteorology, climatology |
| EDL | Engineering Development Laboratory | In English | → Engineering, technology |
| EIfER | European Institute for Energy Research (www.eifer.uni-karlsruhe.de) | In English | → Energy economics → Electrical engineering |
| EL | Equipment Laboratory | In English | |
| EMBL | European Molecular Biology Laboratory | In English | → Biochemistry, biophysics |
| EPRI | Electric Power Research Institute (www.epri.com) | In English | → Electrical engineering |
| ESI | European Software Institute (www.esi.es) | In English | → Computer science |
| ESTL | Electronic Systems Test Laboratory | In English | → Electronics |
| ETL | Environmental Test Laboratory | In English | |
| EVAL | Earth-Viewing Applications Laboratory | In English | → Earth sciences |
| FCHL | Flight Control Hydraulics Laboratory | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| FSL | Flight Simulation Laboratory | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| FSL | Flight Systems Laboratories | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| FTPH | Forschungsinstitut für technische Physik | In German | → Engineering, technology |
| FTW | Forschungszentrum Telekommunikation Wien (www.ftw.at) | In German | → Telecommunications |
| FZR | Forchungszentrum Rossendorf | In German | |
| GEMPPM | Groupe d'Études de Métallurgie Physique et de Physique des Matériaux | In French | → Physics → Metallurgy |
| GGC | Groupe Génétique et Cancer | In French | → Genetics → Oncology |
| GI | Geophysical Institute | In English | → Geophysics |
| GIS | Genome Institute of Singapore | In English | → Biotechnology |
| GNV | Gruppo Nazionale per la Vulcanologia (http://gnv.ingv.it) | In Italian | → 55121 |
| GPL | General-Purpose Laboratory | In English | |
| GRASS | Groupe d'Analyse du Social et de la Sociabilité | In French | → Sociology |
| GSDL | Ground Software Development Laboratory | In English | → Software |
| GVL | Ground Vibrations Laboratory | In English | → Acoustics |
| HCSL | Hybrid Computation and Simulation Laboratory | In English | → Computer simulation |
| HFA | Holzforschung Austria (www.holzforschung.at) | In German | → Forestry |
| HFCL | Hydraulic Flight Control Laboratory | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| HHI | Heinrich-Hertz-Institut (www.hhi.fraunhofer.de) | In German | → Telecommunications |
| HIPRC | Harborview Injury Prevention and Research Center (http://depts.washington.edu/hiprc/) | In English | → Law, jurisprudence |
| HKI | Hans Knöll Institut (www.hki-jena.de) | In German | → Pathology → Pharmacology, toxicology → Infectious diseases |
| HPOL | High-Power Optics Laboratory | In English | → Optics |
| HSL | Hardware Simulation Laboratory | In English | → Hardware → Computer simulation |
| I3S | (Laboratoire d')Informatique, Signaux et Systèmes de Sophia Antipolis | In French | → Computer science → Telecommunications |
| IACD | Institute of Asian Culture and Development | In English | → Civilization, culture, progress → Area studies |
| IAGC | Institute of Applied Genetics and Cell Biology = IAGZ | Institut für Angewandte Genetik und Zellbiologie | In German |
In English | → Genetics → Cytology |
| IAGZ | Institut für Angewandte Genetik und Zellbiologie = IAGC (look above) |
In German | → Genetics → Cytology |
| IAO | Institut für Arbeitswirtschaft und Organisation (www.iao.fraunhofer.de) | In German | → Labour, labour economics |
| IB | Institut für Bodenforschung (www.boku.ac.at/boden/) | In German | → Agricultural sciences |
| IBA | Institute for Biomedical Aging Research | In English | → Biological sciences → Medicine |
| IBL | Institut de Biologie de Lille | In French | → Biological sciences |
| IBN | Institute of Bioengineering and Nanotechnology | In English | → Biotechnology |
| ICAITI | Instituto Centroamericano de Investigación y Tecnología | In Spanish | → Research policy → Engineering, technology |
| ICARDA | International Center for Agricultural Research in the Dry Areas | In English | → Agricultural sciences |
| ICB | International Centre of Biocybernetics | In English | → Computer science → Electronics |
| ICLP | Institute of Chinese Literature and Philosophy | In English | → Philosophy, psychology → Literature |
| ICPO | Institute of Cytology & Preventive Oncology | In English | → Cytology → Oncology |
| ICTA | Instituts et Centres Techniques Agricoles | In French | → Agricultural sciences |
| IDEO | Institut Dominicain d'Études Orientales du Caire | In French | → Roman catholic church → Area studies |
| IDM | Institut für den Donauraum und Mitteleuropa | In German | → International relations → Area studies |
| IDSA | Institute for Defense Studies and Analyses | In English | → Polemology → 355 |
| IEAS | Institute of East Asian Studies | In English | → Area studies |
| IEŚW | Instytut Europy Środkowo-Wschodniej | In Polish | |
| IFEAC | Institut Français d'Études sur l'Asie Centrale | In French | → Area studies |
| IFEAD | Institut Français d'Études Arabes de Damas | In French | → Language, linguistics, literature → Geography, biography, history |
| IFEN | Institut Français de l'Environnement | In French | → Nature → Environment, environmental sciences |
| IFES | Institute of Far Eastern Studies | In English | → Area studies |
| IFK | Internationales Forschungszentrum Kulturwissenschaften (www.ifk.ac.at) | In German | → Civilization, culture, progress |
| IFM | Institut Français de la Mer | In French | → Environment, environmental sciences → Marine research, oceanography |
| IFP | Institut Français du Pétrole | In French | → Earth sciences → Mining → 665 |
| IFR | Institute of Food Research | In English | → Agricultural sciences → Food technology |
| IFRI | Institut Français des Relations Internationales | In French | → International relations |
| IFRTP | Institut Français pour la Recherche et la Technologie Polaire | In French | → Earth sciences |
| IFSH | Institut für Friedensforschung und Sicherheitspolitik | In German | → Polemology |
| IFT | Institute of Food Technologists | In English | → Food technology |
| IGEER | Instituut voor Geschiedenis van de Europese Expansie | In Dutch | → History |
| IGiPZ | Instytut Geografii i Przestrzennego Zagospodarowania (www.igipz.pan.pl) | In Polish | → Geography |
| IGOR | Institut für Gewebe- und Organrekonstruktion (www.igor.at) | In German | → Biotechnology → Medicine |
| IHP | Institute of History and Philology | In English | → Philology → History |
| IHTP | Institut d'Histoire du Temps Présent (www.ihtp.cnrs.fr) | In French | → History |
| IHV | Institute of Human Virology (www.ihv.org) | In English | → Virology |
| II | Instytut Informatyk | In Polish | → Computer science |
| IIAC | Institut Interdisciplinaire d'Anthropologie du Contemporain | In French | → Sociology |
| IIAT | Institut International d'Agriculture Tropicale = IITA | International Institute of Tropical Agriculture | In English |
In French | → Agricultural sciences |
| IIBHG | Institute of Immunobiology and Human Genetics = IIBHG | Institut za Imunobiologija i Humana Genetika | In Macedonian |
In English | → Genetics → Immunology and allergy |
| IISER | Indian Institute of Science and Education Research (www.iiserpune.ac.in) | In English | → Education |
| IITA | International Institute of Tropical Agriculture = IIAT (look above) |
In English | → Agricultural sciences |
| IJM | Institut Jacques Monod (www.ijm.jussieu.fr) | In French | → Biological sciences |
| ILAC | International Laboratory Accreditation Cooperation | In English | |
| ILCA | (Research) Institute for Languages and Cultures of Asia and Africa | In English | → Civilization, culture, progress → Language, linguistics, literature → Area studies |
| ILM | Institut für Laboratoriumsmedizin, Klinische Chemie und Molekulare Diagnostik | In German | → Biochemistry, biophysics → Pharmacology, toxicology → 6160 |
| IMCB | Institute of Molecular and Cell Biology | In English | → Biological sciences |
| IMN | Instytut Metali Nieżelaznych (www.imn.gliwice.pl) | In Polish | → Metallurgy |
| IMP/LMM | Ingénierie des Matériaux Polymères/ Laboratoire Matériaux Macromoléculaires | In French | → 620 → Plastic industry |
| IMS | Institute for Molecular Science | In English | → Biochemistry, biophysics |
| INED | Institut National d'Études Démographiques | In French | → Demography |
| INERIS | Institut National de l'Environnement Industriel et des Risques | In French | → Nature → Engineering, technology |