Institution
- Deavitt Laboratories1
- Department of Energy (Argentina) 1
- Department of Energy and Natural Resources (Canada)1
- Derbyshire County Library1
- Dexter Chemical Corporation1
- Diagnostic Products Corporation 1
- Diamond Shamrock Corporation1
- Displaytech Corporation1
- District of Columbia. Court of Appeals1
- Diva Systems Corporation1
- Diversa Corporation1
- Dixie Mercerizing Company1
- Don Clay Associates, Inc.1
- Douglas Aircraft Company1
- Douglass College1
- Dow AgroSciences LLC1
- Drexel Institute of Technology1
- Drug Royalty Inc.1
- Dutchess Community College1
- E.I. du Pont de Nemours & Co., Experimental Station1