| Rank | Name | Members | Recent average credit | Total credit | Country | Type |
|---|---|---|---|---|---|---|
| 1 | Rechenkraft.net  |
1017 | 26,522 | 281,167,638 | Germany | Non-profit organization |
| 2 | Gruppo Astrofili Lariani  |
7 | 11,872 | 39,109,736 | Italy | Non-profit organization |
| 3 | Masonic Mathematicians | 9 | 29 | 7,018,747 | International | Non-profit organization |
| 4 | A2D-Racing | 6 | 49 | 5,994,096 | United Kingdom | Non-profit organization |
| 5 | GlobalSciCon | 1 | 0 | 5,234,645 | Belgium | Non-profit organization |
| 6 | Xperos | 2 | 718 | 4,760,517 | Philippines | Non-profit organization |
| 7 | BOINC Philippines | 18 | 457 | 4,128,104 | Philippines | Non-profit organization |
| 8 | Center for Inquiry | 14 | 21 | 3,737,368 | International | Non-profit organization |
| 9 | Quad Cities Astronomical Society | 5 | 154 | 3,635,115 | United States | Non-profit organization |
| 10 | ubuntuusers | 56 | 156 | 3,177,691 | Germany | Non-profit organization |
| 11 | techassist.it | 0 | 0 | 2,774,384 | France | Non-profit organization |
| 12 | solists@boinc | 63 | 0 | 2,158,091 | International | Non-profit organization |
| 13 | Cockcroft Institute of Accelerator Science and Technology | 2 | 0 | 2,073,221 | United Kingdom | Non-profit organization |
| 14 | The Richard Dawkins Foundation for Reason and Science (Official) | 44 | 7 | 2,051,182 | International | Non-profit organization |
| 15 | MadnessArts Company | 1 | 2 | 2,014,186 | Switzerland | Non-profit organization |
| 16 | Brony@Home  |
44 | 684 | 2,000,771 | International | Non-profit organization |
| 17 | Macarthur Astronomical Society | 6 | 101 | 1,649,760 | Australia | Non-profit organization |
| 18 | CosmoQuestX | 6 | 448 | 1,564,676 | United States | Non-profit organization |
| 19 | CGMRC | 3 | 15 | 1,457,583 | United States | Non-profit organization |
| 20 | HydroLAB | 11 | 0 | 1,368,099 | France | Non-profit organization |
©2021 CERN