| Link | Location |
|---|
| Jeffrey Rubin | Rockville Centre, New York, United States |
| Lana Rudolph, PMP, CSM, ACP | Philadelphia, Pennsylvania, United States |
| Vera Rumyantseva | Toronto, Canada |
| Stephan Rupp | Berlin, Germany |
| Ute Rupprecht | Munich, Germany |
| Irina Rusanova | Москва, Russian Federation |
| Natalia Rusova | Moscow, Russian Federation |
| Josh Ryan | Fort Collins, Colorado, United States |
| Denys Ryzhykh | Haarlem, Netherlands |
| Andrew S | Rockville Centre, New York, United States |
| Andrejs Sabasovs | Riga, Latvia |
| Jon Sagui | Madison, Wisconsin, United States |
| Pranay Sahgal | Rockville Centre, New York, United States |
| Yuriy Sakharov | Moscow (online), Russian Federation |
| Sławomir Salamon | Kraków, Poland |
