The ELiTES initiative is composed by 9 partners:
| ID | Partner Name | Country |
| 1 | European Gravitational Observatory (EGO) | IT/FR |
| 2 | Institute for Cosmic Rays Research (ICRR)- University of Tokyo | JP |
| 3 | Università degli Studi di Roma "La Sapienza" | IT |
| 4 | Friedrich-Schiller-Universitaet (FSU) - Jena | D |
| 5 | University of Glasgow | UK |
| 6 | Stichting Voor Fundamenteel Onderzoek der materie - FOM | NL |
| 7 | Max Plank Gesellschaft zur Foerderung der Wissenschaften E.V. - MPG | D |
| 8 | Università degli Studi del Sannio | IT |
| 9 | University of West Scotland (UWS) | UK |
