Affiliations with the Letter D
- Daiichi Pharmaceutical Co., Ltd. -- Japan
- Daikin Industries, Ltd. -- Japan
- Dalhousie University -- Canada
- Dalian University of Technology -- China
- Danisco Ingredients -- Denmark
- Danish Chemical Society -- Denmark
- Danish National Board of Health -- Denmark
- Danmarks Tekniske Universitet -- Denmark
- Darbari Lal Educational Foundation -- India
- DAV College Managing Society -- India
- David Alker Associates -- United Kingdom
- De La Salle University -- Philippines
- De Montfort University -- United Kingdom
- Deakin University -- Australia
- Debreceni Egyetem -- Hungary
- DECHEMA e.V. -- Germany
- DecrIPt -- United States
- Defence Science & Tech. Org. -- Australia
- Degussa -- Germany
- Délégué Régional à la Recherche et à la Technologie (DRRT) -- France
- Delft Solids Solutions B.V. -- Netherlands
- Delft University of Technology -- Netherlands
- Department of the Army -- United States
- Deutsche Forschungsgemeinschaft (DFG) -- Germany
- Deutscher Zentralausschuss für Chemie -- Germany
- Deutsches Elektronen-Synchrotron DESY -- Germany
- Deutsches Zentrum für Luftund Raumfahrt -- Germany
- Diabetic Association of Bangladesh -- Bangladesh
- Digart, Ltd. -- Switzerland
- Digital Chemistry -- United Kingdom