| ACTRIS |
| AnaEE |
| Arctic Monitoring and Assessment Programme (AMAP) |
| CERN (LTER China) |
| COSMOS-UK |
| Critical Zone Collaborative Network (CZ Net) |
| CZ-LTER |
| DANUBIUS |
| Drought-Net |
| EuroMAB |
| EUROPARC |
| European Marine Biology Resource Centre (EMBCR) |
| European Monitoring and Evaluation Programme (EMEP) |
| Finnish Marine Research Infrastructure (FINMARI) |
| FluxNet |
| FRIM (Malaysia) |
| Genomic Observatories (GO) |
| GERI |
| Global Cryosphere Watch (GCW) |
| Global Lake Ecological Observatory Network (GLEON) |
| Global Mountain Biodiversity Assessment (GMBA) |
| Global Observation Research Initiative in Alpine Environments (GLORIA) |
| Global Terrestrial Network for Permafrost (GTN-P) |
| ICOS |
| ICP Forests |
| ICP Integrated Monitoring |
| ILTER |
| INTERACT |
| International Soil Moisture Monitoring Network (ISMN) |
| International Tundra Experiment (ITEX) |
| JaLTER (Japan) |
| KLTER (Korea) |
| Lifewatch |
| Long-term Forest Ecosystem Research (LWF) |
| LTER Austria |
| LTER Belgium |
| LTER Brazil |
| LTER Bulgaria |
| LTER Denmark |
| LTER Estonia |
| LTER Europe |
| LTER Finland |
| LTER France |
| LTER Greece |
| LTER Hungary |
| LTER Israel |
| LTER Italia (Italy) |
| LTER Jordan |
| LTER Latvia |
| LTER Lithuania |
| LTER Namibia |
| LTER Norway |
| LTER Poland |
| LTER Portugal |
| LTER Romania |
| LTER Serbia |
| LTER Slovakia |
| LTER Slovenia |
| LTER Spain |
| LTER Sweden |
| LTER Switzerland |
| LTER Thailand |
| LTER Turkey |
| LTER Ukraine |
| LTER Venezuela (ecored) |
| LTER-D (Germany) |
| LTSER Chile |
| Mex-LTER (Mexico) |
| NEON |
| Netherlands LTER |
| Organization of Biological Field Stations (OBFS) |
| OZCAR RI |
| Philippines LTER |
| SAEON |
| SCANNET |
| SNO GLACIOCLIM |
| SNO Karst |
| SNO Observil |
| Swedish Infrastructure for Ecosystem Science (SITES) |
| TERENO |
| TERN (Taiwan) |
| TERN Australia |
| TreeNet |
| UK ECN |
| UK Eutrophying and Acidifying atmospheric Pollutants network (UKEAP) |
| UK Upland Waters Monitoring Network |
| US LTER |
| WMO Global Atmosphere Watch (GAW) |
| World Glacier Monitoring Service (WGMS) |