| ISMC | Iberian Sustainable Mining Cluster 
| Others |
| ISMC | Ibn Sina Medical College
| Others |
| ISMC | Illawarra Sleep Medicine Centre
| Others |
| ISMC | Illawarra Sports Medicine Clinic
| Others |
| ISMC | Indian Standard Medium Weight Channel
| Others |
| ISMC | Institute for Sustainable Malaria Control
| Others |
| ISMC | Institute for the Study of Muslim Civilisations
| Others |
| ISMC | Institute of Sports Medicine Copenhagen
| Others |
| ISMC | Integrated Safety Management Concept
| Others |
| ISMC | Integrated Services Management Center (SAIC)
| Others |
| ISMC | Integris Southwest Medical Center
| Others |
| ISMC | Intelink Service Management Center
| Others |
| ISMC | International Sales Marketing Conference
| Others |
| ISMC | International Singapore Maths Competition
| Others |
| ISMC | International Ski Mountaineering Competition
| Others |
| ISMC | International Sleep Medicine Course
| Others |
| ISMC | International Snowmobile Media Council
| Others |
| ISMC | International Social Marketing Conference
| Others |
| ISMC | International Society of Motor Control
| Others |
| ISMC | International Soft Matter Conference
| Others |
| ISMC | International Soil Modeling Consortium
| Others |
| ISMC | International Student Ministries Canada
| Others |
| ISMC | International Supply Management Congress
| Others |
| ISMC | International Switching Maintenance Center
| Others |
| ISMC | Internet Security and Management Corp
| Others |
| ISMC | Iowa Summer Music Camps
| Others |