International Securities Market Association国际证券市场协会 Internet Streaming Media Alliance因特网流式媒体联盟 Insurance Marketplace Standards Association保险市场标准协会 Idle Signal Multiple Access空闲信号多址 International Symposium on Mechatronics and its Applications (IEEE)机电一体化技术研讨会及应用(IEEE) International Sports Medicine Association国际体育医学协会 Information Systems Management Activity/Agency信息系统管理活动/机构 International Ship Managers Association国际船舶经理人协会 Integrated Service Management Architecture (Sprint)综合服务管理体系(冲刺) Inhibit Sense Multiple Access (Transmission Protocol)抑制多址(传输协议的感觉) International Snowmobile Manufacturer's Association制造商协会国际雪山 ISC Management Activity私立学校管理活动 International Ship Masters' Association国际船舶大师的协会 Improved Satellite Multi-Channel Antenna多天线改进人造卫星 Information Systems Management Activity信息系统管理活动