| Society for Mucosal Immunology | Academic & Science |
| Society of Mucosal Immunology | Academic & Science |
| Samos | Airport Code |
| Schott Musik International | Business |
| Saturday Music, Inc. | Business |
| Supplier Management Inventory | Business |
| Snow Machines Inc | Business |
| Specialty Measurements Inc | Business |
| Strategic Marketing Innovations | Business |
| Shelter Management Inc | Business |
| Systems and Methods Inc | Business |
| Supplementary Medical Insurance | Business |
| Swiss Market Index | Business |
| Springs Industries, Inc. | Business |
| Specialty Measurements, Incorporated | Business |
| Storage Management Initiative | Business Management |
| School Meal Initiative | Community |
| Salesian Missions, Inc. | Community |
| Summer Music Insitute | Community |
| Social Media Information | Community |
| Structure of Management Information | Computer and Networking |
| System Management Interrupt | Computer Assembly Language |
| State Manager Interface | Computing |
| Structure of Managed Information | Computing |
| Synchronized Multimedia Integration | Computing |
| Systems and Materials for Information Storage | Computing |
| Shared Multidimensional Information | Computing |
| Sequelink Middleware Interface | Computing |
| Storage Management Interface | Computing |
| Special Message Identifier | Computing |
| State Management Interface | Computing |
| Standard Multilayer Image | Computing |
| Site Map Index | Computing |
| Smart Install | Computing |
| Server Management Interface | Computing |
| Social Media Index | Computing |
| Software Mature Indicator | Computing |
| Support for Mortgage Interest | Country Specific |
| SafeMoon Inu | Cryptocurrency |
| Sailor Moon Insanity | File Type |
| Some Main Ingredient | General |
| Stochastic Modeling Interface | General |
| Stock Market Indicator | General |
| S Maskable Interrupt | General |
| Social Media Intelligence | General |
| Suzuki Maruti India | General |
| Sarawak Motor Industries | General |
| Samsung Motors Inc. | General |
| Mechanical Contractor (Best in the USA) | General |
| Shape Modeling International | General |
| Scholastic Math Inventory | General |
| Sistemi Meccanici Industriali | General |
| Services Maintenance Interventions | General |
| Singapore Malaysia and Indonesia | General |
| Standard Motor Interface | General |
| Scientology Missions International | General |
| Sales Managers Index | General |
| Standard Media Index | General |
| Strategic Marketplace Initiative | General |
| Solid Modest And Integrated | General |
| Servicio Medico Integral | General |
| Service Mesh Interface | General |
| Summer Manufacturing Institute | General |
| Structured Materials Industries | General |
| Self Mounting Image | General |
| System Modeling Interface | General |
| Seriously Mentally Impaired | Governmental |
| Severe Mental Illness | Governmental |
| Singular Medicare Index | Governmental |
| Small and Medium Industries | Governmental |
| Serious Mental Illness | Governmental |
| School of Military Intelligence | Governmental |
| Spring Manufacturers Institute | Governmental |
| Stefan Meyer Institute | Governmental |
| Sustainable Minerals Institute | Governmental |
| Summer Medical Institute | Governmental |
| SITAMARHI | Indian Railway Station |
| Semiconductor Manufacturing International | International |
| Specialty Marketing International | International |
| Salario Mínimo Interprofesional | International |
| Student Missionary Internship | Jobs |
| St. Micheal Ipoh | Medical |
| Seriously Mentally Ill | Medical |
| Stand for Mental Illness | Medical |
| Sonitus Medical Inc. | Medical |
| Serious Mental Iillness | Medical |
| Silent Myocardial Infarction | Medical |
| Silent Myocardial Ischaemia | Medical |
| Spanish medical Interpreter | Medical |
| Sperm Motility Index | Medical |
| Sensory Motor Integration | Medical |
| Service Motivation and Integrity | Military and Defence |
| Soldier-machine Interface | Military and Defence |
| Security Management Infrastructure | Military and Defence |
| Samos, Greece | Regional |
| Sami Languages | Regional |
| Sports Medicine Institute | Sports |
| Stud Middle Infield | Sports |
| Sports Management International | Sports |
