International Municipal Signal Association国际市政信号协会 Insurance Marketplace Standards Association保险市场标准协会 Illinois Mathematics and Science Academy伊利诺斯州的数学和科学学院 Illinois Mini Storage Association伊利诺斯州的迷你仓储协会 International Motor Sports Association国际摩托运动协会 Installation Medical Support Activity安装医疗支持活动 Institute of Marine Safety Auditors学院的海运安全审计人员 Seaman Apprentice, Instrumentman Striker (Naval Rating)学徒,Instrumentman海员射手(海军等级) Integrated Medical Sciences Assessment (UK)综合医疗科学评估(英国) Installation Medical Supply Account安装医疗供给帐户 International Medical Spa Association国际医学水疗协会 International Medical Students Association国际医学学生协会 International Memorialization Supply Association国际Memorialization供应协会