| R. Jaarsma MSc. | PhD student | Structural Biology |
| Annika Jacobsen MSc. | PhD student | Integrative Bioinformatics |
| Chimed Jansen MSc. | PhD student | Medicinal Chemistry; Target and Systems Biochemistry |
| Ing. Elwin Janssen | Technician | Synthetic & Bio-organic Chemistry; Synthetic Chemistry |
| Guido Janssen MSc. | PhD student | Synthetic & Bio-organic Chemistry; Synthetic Chemistry |
| Dr. Wouter Jong | Post-doctoral researcher | Molecular Microbiology |
| Ing. Bas de Jong | Technician | Synthetic & Bio-organic Chemistry; Synthetic Chemistry |
| Willem Jonker MSc. | PhD student | Analytics of Biomolecular Interactions; Biomolecular Analysis |
| Dr M Joost | Post-doctoral researcher | Synthetic & Bio-organic Chemistry; Synthetic Chemistry |
