| Institute of Management Sciences | Academic & Science |
| Instructional Media Services | Academic & Science |
| Insight Meditation Society | Academic & Science |
| Ionospheric Measuring System | Academic & Science |
| Inland Mapping System | Academic & Science |
| Institute of Mechatronic Systems | Academic & Science |
| Institute of Medical Statistics | Academic & Science |
| Ingomar Middle School | Academic & Science |
| Icaew Members In Scotland | Accounts and Finance |
| Institute of Mathematical Statistics | Associations |
| Interactive Marketing Solutions | Business |
| Internet Marketing Specialist | Business |
| Identity Management System | Business |
| Integrated Management Systems | Business |
| Institute for Management Studies | Business |
| Infrastructure Management Systems | Business |
| Institute of Management Studies | Business |
| Investor Management Services | Business |
| Innovative Media Solutions (Company) | Business |
| Integrated Marketing Solutions | Business |
| Interactive Marketing System | Business |
| Intercontinental Marketing Services | Business |
| Information Management Strategy | Business |
| Interstate Milk Shippers | Business |
| International Meat Secretariat | Business |
| Identity Management Service | Business |
| Interview Management System | Business |
| Innovative Management Solutions | Business |
| Integrated Mechanization Solutions | Business |
| Interim Management Statement | Business |
| Insurance Management Services | Business |
| Information Management Sub | Business |
| Intelligent Manufacturing Systems | Business |
| Inventory Management Services | Business |
| Information Management Services | Business |
| A Ibms Management Scenario | Business Management |
| Instructional Management Systems | Business Management |
| Instructional Management Standards | Business Management |
| Information Management Society | Business Management |
| Industrial Methylated Spirits | Chemistry |
| Industrial Methylated Spirit | Chemistry |
| Isotope Measuring System | Chemistry |
| Impact Management System | Chemistry |
| Iselin Middle School | Community |
| Instructional Management Standard | Community |
| Image, Movement, and Sound | Community |
| Institute for Medical Statistics | Community |
| Insensitive Mother Syndrome | Community |
| Ironton Middle School | Community |
| International Workshop on Interoperability in Multidatabase Systems | Community |
| International Microwave Symposium | Community |
| Indian Mountain School | Community |
| International Media Support | Community |
| Issaquah Middle School | Community |
| Institute of Museum Services | Community |
| International Multimedia Standard | Community |
| Interactive Multimedia Services | Computer and Networking |
| Infrastructure Management Services | Computing |
| Intelligent Munitions System | Computing |
| I Must See | Computing |
| Innovative Music Systems | Computing |
| Internet Mail Service | Computing |
| Internet Map Server | Computing |
| Integrated Master Schedule | Computing |
| Internet Mail Server | Computing |
| Instructional Management System | Computing |
| Interactive Multimedia System | Computing |
| Internet Mail and News Setup | Computing |
| Instant Messengers | Computing |
| Instant Managed Service | Computing |
| Intermediate Maintenance Standards | Computing |
| Interactive Multimedia Server | Computing |
| Instant Messaging System | Computing |
| Integrated Micro Systems | Computing |
| Installation Management Services | Computing |
| Ip Multimedia Subsystem | Computing |
| Information and Monitoring Service | Computing |
| Instant Messenger Server | Computing |
| Interprocess Message Switch | Computing |
| Input Message Show | Computing |
| Image Management System | Computing |
| Institute for Microelectronics Stuttgart | Computing |
| Information Management Solutions | Computing |
| Internet Marketing Services | Computing |
| Internet Multimedia Subsystem | Computing |
| Information Management System | Computing Databases |
| Independent Money System | Cryptocurrency |
| Intelligent Manufacturing System | Electronics |
| Ion Mobility Spectroscopy | Electronics |
| Industrial Metal Supply | General |
| Ind Motor Speedway | General |
| Intelligent Maintenance Systems | General |
| Insulated Metal Substrate | General |
| Innovative Manufacturing Solutions | General |
| Intra Muscular Stimulation | General |
| Ion Mobility Spectrometry | General |
| Image Management Service | General |
| Irritable Male Syndrome | General |
| Indy Motor Speedway | General |
| Intelligent Marquee Systems | General |
| Integrated Manufacturing System | General |
| Instant Mobility System | General |
| Ignition Module Signal | General |
| Inferred Mileage Sensor | General |
| International Motor Sports | General |
| Integrated Memory Seat | General |
| Integrated Memory System | General |
| Integrated Management System | General |
| International Motor Show | General |
| Intake Manifold Spacer | General |
| Intermodal Management System | General |
| Intreprinderea Mecanica de Stat | General |
| Interior Motion Sensor | General |
| Ignition Module Select | General |
| Intelligent Mobility Sedan | General |
| Infrastructure Managed Services | General |
| International Market Square | General |
| Insulated Metal Substrates | General |
| Industrial Molding Supplies | General |
| Imaginary Missing Systems | General |
| Idle Moaning Slob | General |
| Instant Messenger Syndrome | General |
| Iowa Medical Society | Healthcare |
| International Monitoring System | International |
| International Manufacturing Services | International |
| International Mycorrhiza Society | International |
| I Am Sorry | Internet |
| Internet Member Services | Internet |
| Internet Membership System | Internet |
| Internet Mapping System | Internet |
| Internal Medicine Specialist | Jobs |
| Integrated Meetings Specialist | Jobs |
| Incrementally Matched Sets | Maths |
| Institute of Medical Science | Medical |
| Indian Medical Service | Medical |
| InterMuscular Stimulation | Medical |
| Interventional Management of Stroke | Medical |
| Information Medical Statistics | Medical |
| Incident Management System | Medical |
| Integrated Medical Systems | Medical |
| Integrated Medical Services | Medical |
| Intra‐Metatarsal Space (foot) | Medical |
| If Modified Since | Medical |
| I Must Say | Messaging |
| If Memory Serves | Messaging |
| Interagency Management System | Military and Defence |
| International Military Standardization | Military and Defence |
| International Military Staff | Military and Defence |
| Indian Missionary Society | Religion |
| Institutional Management Support | Space Science |
| Inventory Management System | Space Science |
| Intra-Mural Sport | Sports |
| Indianapolis Motor Speedway | Sports |
| InterMediate Shaft | Technology |
| Ip (internet Protocol) Multimedia Subsystem | Telecommunication |
| Internal Messaging System | Telecommunication |
