| Finnish Meteorological Institute, Finland | Academic & Science |
| Friedrich Miescher Institute | Academic & Science |
| Financial Management Initiative | Accounts and Finance |
| Kalemie | Airport Code |
| Fonds Monétaire International | Associations & Organizations |
| Fundo Monetário Internacional | Associations & Organizations |
| Folkebevegelsen Mot Innvandring | Associations & Organizations |
| Financial Market Infrastructure | Banking |
| Food Marketing Institute | Business |
| Fluid Metering INC | Business |
| Facility Merchandising Inc | Business |
| Franklin Mutual Insurance | Business |
| Facilities Management Institute | Business |
| Financial Modeling Institute | Business |
| Fiber Materials Inc | Business |
| Financial Management Inc | Business |
| Financial Market Infrastructures | Business |
| Franklin Multi- Income Trust | Business |
| Financial Markets Institute | Business |
| First Myanmar Investment | Business |
| Freight Management Inc | Business |
| Food Marketplace Inc | Business |
| Fiduciary Management Inc | Business Management |
| Fails Management Institute | Business Management |
| Freedom Marathon, Inc. | Community |
| For More Information | Computer Hardware |
| Failure Mode Identifier | Computing |
| Field Machine Intelligence | Computing |
| Find My Iphone | Computing |
| Fiber Optic Medium Interface | Computing |
| Facultatea de Matematica Si Informatica | Computing |
| Frequency Modulation Interference | Electronics |
| Foundation Medicine Inc | General |
| Foursquare Missions International | General |
| Fashion Manufacturing Initiative | General |
| flexible mockQup interface | General |
| Functional Mockup Interface | General |
| Formation Micro Imager | General |
| For My Information | General |
| Fireplace Manufacturers Incorporated | General |
| Failure Mode Indicator | General |
| Fondo Monetario Internazionale | General |
| Fecal Milk Ingesta | General |
| Ford Motor Indonesia | General |
| Fleet Management Interface | General |
| Ford Motor Iberica | General |
| Ford Marketing Institute | General |
| Federated Motor Industries | General |
| Franklin Mental Institute | Governmental |
| Family Medicine Institute | Governmental |
| Finnish Meteorological Institute | Governmental |
| Florida Mexico Institute | Governmental |
| Free Market Institute | Governmental |
| Freedom Movement of Iran | Governmental |
| Fire Modeling Institute | Governmental |
| Fondo Monetario Internacional | International |
| Food Machines International | International |
| Financial Markets International | International |
| Frequency Management International | International |
| Forgotten Missionaries International | International |
| Faculty of Mathematics and Informatics | Maths |
| Force Module Identifier | Military and Defence |
| Field Manual-interim | Military and Defence |
| Fast Moire Interferometry | Physics Related |
| Kalemie, Congo | Regional |
| Kalemie Airport | Transport & Travel |
| FMI Air | Transport & Travel |
