| Abbreviation | Definition |
|---|---|
| ISEH | International Society for Ecosystem Health |
| ISEH | International Society for Experimental Hematology |
| ISEM | International Society for Ecological Modelling |
| ISEM | International Society for Experimental Microsurgery |
| ISEN | International Society for ECT and Neurostimulation |
| ISEN | Irish Society of Endoscopy Nurses |
| ISEP | International Society for Ecological Psychology |
| ISEP | International Society for Environmental Protection |
| ISEP | International Society for Evolutionary Protistology |
| ISEP | International Society of Educators in Physiotherapy |
| ISER | International Society for Engineers and Researchers |
| ISER | International Society for Eye Research |
| ISERD | International Society of Environmental and Rural Development |
| ISES | International Society for Endovascular Surgery |
| ISES | International Society of Endovascular Specialists |
| ISES | International Special Event Society |
| ISESSAH | International Society for Economics and Social Sciences of Animal Health |
| ISET | Indian Society of Earthquake Technology |
| ISFA | International Society for |
| ISFAE | International Society of Food Agriculture and Environment |