| 100006 | PortalPrimary | BioPORT Registry | biomedical computing | http://pds.biomedicalcomputing.net/bioport | Valid | Valid |
| 100008 | PortalPrimary | BrainWatch Registry | brain imaging informatics | http://pds.brainwatch.net/brainwatch | Valid | Valid |
| 100107 | PortalPrimary | CTGaming Registry | clinical diagnostic and therapeutic telegaming | http://pds.clinicaltelegaming.net/ctgaming | Valid | Valid |
| 100005 | PortalPrimary | GeneScene Registry | genetic medicine and science | http://pds.genescene.net/genescene | Valid | Valid |
| 100009 | PortalPrimary | GTG Registry | registry of resource agents at GTG Registrar | http://pds.telegenetics.net/gtg-portal | Valid | Pending |
| 100004 | PortalPrimary | ManRay Registry | radiopharmaceuticals and nuclear medicine | http://pds.nucmedlib.net/manray | Valid | Pending |
| 100116 | PortalPrimary | MeSH2010 Thesaurus | PDS PORTAL Registry implementation of NLM MeSH2010 Thesaurus | http://pds.portaldoors.net/mesh2010 | Valid | Valid |
| 100002 | PortalRoot | PDS PORTAL Root | PORTAL Registries network root | http://pds.portaldoors.org/npds/portal | Valid | Pending |