| Abbreviation | Definition |
|---|---|
| IMSI | International Maple Syrup Institute |
| IMSIE | Institute for Medical Statistics Informatics and Epidemiology |
| IMSL | Institute of Management of Sri Lanka |
| IMSM | Institute For Molecular Science Of Medicine |
| IMSP | Institute of Mathematical Sciences and Physics |
| IMSR | Institute Of Medical Sciences And Research |
| IMSR | Institute of Metabolism and Systems Research |
| IMST | Institute of Massage and Sports Therapy |
| IMSTI | Institute of Marine Scientifique and Technological Information |
| IMSW | Institute of Medical Social Workers |
| IMT | Institutions Markets Technologies |
| IMTD | Institute for Multi Track Diplomacy |
| IMTD | Institute of Master Tutors of Driving |
| IMTM | Institute of Modern Technology Montenegro |
| IMTM | Institute of Molecular and Translational Medicine |
| IMTP | Institute for Marine Technology Problems |
| IMTT | Institute of Machine Tool Technology |
| IMU | Institute of Medical Ultrasound |
| IMV | Institute for Molecular Virology |
| IMVI | International Mathematical Virtual Institute |