| Organization name | Address | First registered nodes | Current registered nodes |
|---|---|---|---|
| Rico Leenarts | --- | 1 | 0 |
| Paolo Tentori | --- | 1 | 0 |
| Mohamed Hussein Sayed | --- | 1 | 0 |
| Lloyd Smith | --- | 1 | 0 |
| Marc Swanson | --- | 1 | 0 |
| Lallemand Johann | --- | 1 | 0 |
| Progressive Health Services | 6300 Wilson Mills Rd Box W31 Mayfield Village, OH 44143 United States (the) |
1 | 0 |
| Verheijen Ron | --- | 1 | 0 |
| Bastian Jerry | --- | 1 | 0 |
| NDANATCHE Essowèmlou Geraud | --- | 1 | 0 |
| Donsbach Douglas | --- | 1 | 0 |
| Sylvester Chen | --- | 1 | 0 |
| Yuichi Uchida | --- | 1 | 0 |
| Birkner Andreas | --- | 1 | 0 |
| Andrew van Tonder | --- | 1 | 0 |
| Cotton Steve | --- | 1 | 0 |
| Hart Christopher | --- | 1 | 0 |
| Sébastien Durand | --- | 1 | 0 |
| Reece Joyner | --- | 1 | 0 |
| Sergey Randitskiy | --- | 1 | 0 |
| Dunford Simon | --- | 1 | 0 |
| Rice Gerry | --- | 1 | 0 |
| Grillo Pete | --- | 1 | 0 |
| Christenson Mark G. | --- | 1 | 0 |
| Connexin Software | 5 Walnut Grove Drive Suite 240 Horsham, PA 19044 United States (the) |
1 | 0 |
| Karlsson Jonas | --- | 1 | 0 |
| Rossi Bruno | --- | 1 | 0 |
| captainyuming | Shenyang City, Liaoning Province, China | 1 | 0 |
| Young Christine | --- | 1 | 0 |
| Fabio Vallino | --- | 1 | 0 |
| Nerone Mike | --- | 1 | 0 |
| Voigt Kai | --- | 1 | 0 |
| Paul Mailes | --- | 1 | 0 |
| Hegg Paul | --- | 1 | 0 |
| FELIZIANI GUGLIELMO | --- | 1 | 0 |
| Paul Milliken | --- | 1 | 0 |
| Madan Anil | --- | 1 | 0 |
| C.Neufend | --- | 1 | 0 |
| Denneny Ryan | --- | 1 | 0 |
| California Immunization Registry | California Dept. of Public Health, Immunization Branch 850 Marina Bay Parkway Building P, 2nd Fl Richmond, CA 94804-6403 United States (the) |
5 | 0 |
| Venkat Girish | --- | 1 | 0 |
| ETHAN GARTRELL | --- | 1 | 0 |
| Alexander Iliev | --- | 1 | 0 |
| Verhs Istvn | --- | 1 | 0 |
| Case Jeff | --- | 1 | 0 |
| Barry James | --- | 1 | 0 |
| Jeff Doyle | --- | 1 | 0 |
| Communication and Electronics Security Group (CESG) | Government Communications Headquarters PO Box 144 Cheltenham GL52 5UE United Kingdom of Great Britain |
1 | 0 |
| Magellan Health Services | 14100 Magellan Plaza Maryland Heights, MO 63043 United States (the) |
1 | 0 |
| Delaware Divsiion of Public Health | 417 Federal St Dover, DE 19901 United States (the) |
1 | 0 |