| Marc Kéry | aut |
| Andy Royle | aut |
| Mike Meredith | aut |
| Ken Kellner | ctb / cre (simIDS) |
| Urs Breitenmoser | dtc (EurasianLynx) |
| Richard Chandler | ctb |
| Bob Dorazio | ctb |
| Evan Grant | dtc (duskySalamanders) |
| John-Andren Henden | dtc (Finnmark) |
| Rol | |
| Kays | dtc (MesoCarnivores) |
| David King | dtc (cswa) |
| Xavier Lambin | dtc (waterVoles) |
| Jeremy Mizel | ctb / dtc (treeSparrow) |
| Anja Molinari-Jobin | dtc (EurasianLynx) |
| René-Jean Monneret | dtc (FrenchPeregrines) |
| Arielle Parsons | dtc (MesoCarnivores) |
| René Ruffinoni | dtc (FrenchPeregrines) |
| Michael Schaub | ctb |
| Rahel Solmann | ctb |
| Nicolas Strebel | dtc |
| Chris Sutherland | ctb / dtc (waterVoles) |
| Mathias Tobler | ctb |
| Gesa von Hirschheydt | ctb (simOccCat) |
| Fridolin Zimmermann | dtc (EurasianLynx) |
| Aargau Biodiversity Monitoring Program | dtc (LANAG) |
| British Ornithological Trust | dtc (willowWarbler, UKmarbledWhite, <https://www.bto.org/>) |
| Butterfly Conservation | dtc / cph (UKmarbledWhite, <https://butterfly-conservation.org>) |
| Centre for Ecology & Hydrology | dtc / cph (UKmarbledWhite, <https://www.ceh.ac.uk>) |
| Dutch Centre for Field Ornithology | dtc (wagtail, <https://www.sovon.nl>) |
| eMammal | dtc (MesoCarnivores, <https://emammal.si.edu/>) |
| Groupe Pèlerin Jura | dtc (FrenchPeregrines) |
| Hubbard Brook Ecosystem Study | dtc (HubbardBrook, <http://data.hubbardbrook.org/data/dataset.php?id=178>) |
| Joint Nature Conservation Committee | dtc / cph (UKmarbledWhite, <https://jncc.gov.uk/>) |
| North Carolina Museum of Natural Sciences | dtc (mesoCarnivores) |
| North Carolina State University | dtc (mesoCarnivores) |
| Progetto Lince Italia | dtc (EurasianLynx, <https://www.progettolinceitalia.it>) |
| Swiss Federal Statistical Office | dtc / cph (BerneseOberland, <http://www.bfs.admin.ch>) |
| Swiss Foundation KORA Carnivore Ecology | |
| Wildlife Management | dtc (EurasianLynx, <https://www.kora.ch>) |
| Swiss Ornithological Institute | dtc (<https://www.vogelwarte.ch>) |
| UK Butterfly Monitoring Scheme | dtc / cph (UKmarbledWhite, <https://www.ceh.ac.uk/our-science/projects/uk-butterfly-monitoring-scheme>) |