| DESY/University Hamburg | Prof. Francesca Calegari | https://atto.cfel.de/ |
| ECNU Shanghai | Prof. Hui Li & Prof. Jian Wu | http://faculty.ecnu.edu.cn/s/1328/t/15179/main.jspy |
| Erlangen University | Prof. Peter Hommelhoff | http://www.laserphysik.nat.fau.de/mitarbeiter/profil.shtml/peter-hommelhoff.shtml |
| ETH Zurich | Prof. Ruth Signorell | https://www1.ethz.ch/aerosol/group_members/Ruth_Signorell |
| FU Berlin | Prof. Eckart Rühl | http://ruehl.userpage.fu-berlin.de/ |
| ICFO Barcelona | Prof. Jens Biegert | https://www.icfo.eu/research/groups-details?group_id=25 |
| ILT Aachen | Dr. Peter Rußbüldt, Hans-Dieter Hoffmann | http://www.ilt.fraunhofer.de/en.html |
| Jena University | Prof. Jens Limpert | https://www.hi-jena.de/en/helmholtz_institute_jena/members/jens-limpert/ |
| | Prof. Adrian Pfeiffer | http://www.alp-ioq.uni-jena.de/ |
| | Prof. Stefanie Gräfe | https://www.ipc.uni-jena.de/members.php?id=176&lang=de |
| Kansas-State University | Prof. Artem Rudenko | https://www.phys.ksu.edu/people/tt-faculty/rudenko.html |
| | Prof. Cosmin Blaga | https://physics.osu.edu/people/blaga.1 |
| LMU | Prof. Regina de Vivie-Riedle | http://www.cup.uni-muenchen.de/pc/devivie/ |
| | Dr. Anna Friedl | https://www.munich-photonics.de/people/details/p/anna-a-friedl/ |
| MPI-K | Dr. Robert Moshammer | https://www.mpi-hd.mpg.de/pfeifer/page.php?id=123 |
| MPQ/LMU | Prof. Ferenc Krausz, Dr. Ioachim Pupeza,
Dr. Matthew Weidman, Dr. Thomas Nubbemeyer,
Dr. Vladislav Yakovlev | http://www.attoworld.de/ |
| NRC Ottawa | Prof. Paul Corkum, Prof. André Staudte | https://www.nrc-cnrc.gc.ca/ |
| Ohio-State University | Prof. Alexandra Landsman | https://physics.osu.edu/people/landsman.7 |
| | Prof. Louis di Mauro | http://dimauro.osu.edu/ |
| Postech | Prof. Dong Eon Kim & Dr. Alexis Chacon | http://lsl.postech.ac.kr/ |
| Rostock University | Prof. Thomas Fennel | http://web.physik.uni-rostock.de/clustertheorie/ |
| Saarland University | Prof. Markus Gallei | http://www.gallei-lab.com/index.html |
| SLAC / Stanford University | Dr. James Cryan | https://ultrafast.stanford.edu/ |
| | Dr. Agostino Marinelli | https://profiles.stanford.edu/agostino-marinelli |
| Tokyo University | Prof. Jiro Itatani | https://www.issp.u-tokyo.ac.jp/maincontents/organization/labs/itatani_group_en.html |
| University of Connecticut | Prof. Nora Berrah | https://tesla.phys.uconn.edu/ |
| | Prof. Carlos Trallero | https://physics.uconn.edu/carlos-a-trallero/ |
| University Liege | Prof. Francoise Remacle | http://www.tcp.ulg.ac.be/ |
