The first call ran from March 6, 2025 to April 6, 2025. See more details here.
Out of the 74 eligible applications that have been received, 46 projects were selected. A partial list (31 candidates) is given below (the full list will be available once we get explicit agreement to share the data).
| Full name | Domain | Visiting institute |
| Alberto Colombo | Gravitational waves | UNIGE |
| Amedeo Romagnolo | Gravitational waves | GSSI |
| Andrea Simongini | Gamma-rays | IRFU |
| Anna Bobrikova | X-rays | INAF |
| Arthur Suvorov | Gravitational waves | AUTh |
| Bence Becsy | Gravitational waves | L2IT |
| Camille Diez | X-rays | IRFU |
| Chitranshi Bakshi | Gamma-rays | UNIGE |
| Christos Panagiotou | Neutrinos | UCLouvain |
| Clément Pellouin | Gravitational waves | GSSI |
| Daniele Ambrosino | Gamma-rays | IFAE |
| Danny Laghi | Gravitational waves | L2IT |
| Diego Alberto Coloma Borja | Neutrinos | UCLouvain |
| Ermes Aviano | Gamma-rays | UNIGE |
| Gourab Giri | X-rays | SRON |
| Halim Ashkar | Gamma-rays | IRFU |
| Hossam Khalil | X-rays | UNIGE |
| Jianghui Yuan | Gamma-rays | INAF |
| Kevin Alabarta Jativa | Optical/infrared | INAF |
| Lucas De Sá | Gravitational waves | GSSI |
| Maria Lisa Brozzetti | Gravitational waves | L2IT |
| Marion Pillas | Neutrinos | APC |
| Miki Kurihara | X-rays | SRON |
| Monica Seglar-Arroyo | Gamma-rays | IRFU |
| Navaneeth P K | Gamma-rays | IFAE |
| Pankaj Saini | Gravitational waves | L2IT |
| Pawan Tiwari | Gamma-rays | IFAE |
| Pedro De La Torre Luque | Cosmic-rays | INFN |
| Pietro Monti-Guarnieri | Gamma-rays | IRFU |
| Samy Kaci | Gamma-rays | GSSI |
| Venkatessh Ramakrishnan | X-rays | IRAP |