| Organization name | Address | First registered nodes | Current registered nodes |
|---|---|---|---|
| Marc Balmer | --- | 2 | 0 |
| McClain Byron | --- | 1 | 0 |
| Hsieh Harvey | --- | 1 | 0 |
| Bright Kenny | --- | 1 | 0 |
| Horn Helmut | --- | 1 | 0 |
| Daniel Wolfram | --- | 1 | 0 |
| Schmaedicke Ptere | --- | 1 | 0 |
| Roach Mike | --- | 1 | 0 |
| System Administrator | --- | 10 | 0 |
| Damien Degois | --- | 1 | 0 |
| Søren Friis Skovsen | --- | 1 | 0 |
| Christoph Müller | --- | 2 | 0 |
| Fluidsignal Group Engineering Department | --- | 1 | 0 |
| Dan Rothstein | --- | 1 | 0 |
| Michael Helm | ESnet/Lawrence Berkeley National Lab 1 Cyclotron Rd Berkeley CA 94720 United States (the) |
3 | 2 |
| Bart-Jan Vrielink | --- | 1 | 0 |
| Masashi Kodama | --- | 1 | 0 |
| Mulrooney Matthew | --- | 1 | 0 |
| Children's Hospital of Philadelphia | 34th St & Civic Center Blvd. Philadelphia, PA 19104 United States (the) |
1 | 0 |
| Livingston HealthCare | 504 So 13th Street Livingston Mt 59047 United States (the) |
1 | 0 |
| Food and Drug Administration Data Standards Council | Food and Drug Administration 10903 New Hampshire Ave WO32-Room 4152 Silver Spring MD 20993-0002 United States (the) |
1 | 0 |
| Carsten Schaub | --- | 1 | 0 |
| HENRY Christophe | --- | 1 | 0 |
| Champ Sean | --- | 2 | 0 |
| Pawel Szmidt | --- | 1 | 0 |
| Georgy Dudukalov | --- | 1 | 0 |
| McGrane Bill | --- | 1 | 0 |
| Lakeland Community Connect | 1234 Napier Ave St. Joseph, MI 49085 United States (the) |
31 | 0 |
| Elk Regional Health System | 763 Johnsonburg Road St. Marys, PA 15857 United States (the) |
1 | 0 |
| Rezel Association | --- | 2 | 0 |
| Lee Jeff | --- | 1 | 0 |
| Health Level Seven | 10 | 8 | |
| Zbigniew Pawelec | --- | 1 | 0 |
| Mike Stinebaugh | --- | 1 | 0 |
| Michael Wassong | --- | 1 | 0 |
| Vogels Dallas | --- | 1 | 0 |
| Gutman David | --- | 1 | 0 |
| Konstantin Khitsko | --- | 0 | 1 |
| Lawrence Teo | --- | 1 | 0 |
| HL7 Modeling and Methodology Workgroup | 3300 Washtenaw Avenue, Suite 227 Ann Arbor, MI 48104 United States (the) |
1 | 0 |
| L.M.J. Visser | Nederlands Normalisatie-instituut Postbus 5059 2600 GB DELFT The Netherlands |
2 | 0 |
| Ton Van Bergeijk | Nederlands Normalisatie-instituut Postbus 5059 2600 GB Delft The Netherlands |
1 | 4 |
| Esben Foverskov | --- | 1 | 0 |
| Cardoner Guillaume | --- | 1 | 0 |
| Gstraunthaler Bertram | --- | 1 | 0 |
| lupeihong | --- | 1 | 0 |
| Frank Juergen | --- | 1 | 0 |
| Norman Schulz | --- | 1 | 0 |
| Yamada Satoshi | --- | 1 | 0 |
| Sung-Won, Kwon | --- | 1 | 0 |