| Rank | Abbreviation | Meaning |
|---|
| ***** | FEMS | Factory Energy Management System
| |
| **** | FEMS | Fédération des Ecomusées et Musées de Sociéte
| |
| **** | FEMS | Facilities Engineering Maintenance Services
| |
| **** | FEMS | Fédération des Écomusées et des Musées de Société
| |
| *** | FEMS | Fatigue and Engine Monitoring System
| |
| *** | FEMS | Fédération Européenne des Médecins Salariés
| |
| ** | FEMS | Federation of European Microbiology Societies
| |
| ** | FEMS | Fellow of the Minerals Engineering Society
| |
| * | FEMS | Federation of European Microbiological Societies
| |
| * | FEMS | Fabrication Engineering Management System
| |
| * | FEMS | Forest Environmental Management System
| |
| * | FEMS | Facility Energy Management System
| |
| * | FEMS | For European Materials Scientists
| |
| * | FEMS | Federation of European Microbiology Society
| |
| * | FEMS | Federation of European Microbial Societies
| |
| * | FEMS | far east metal syndicate
| |
| * | FEMS | Federation of European Materials Societies
| |
| * | FEMS | Fire and Emergency Services
| |
| * | FEMS | Emrg Mkts SC Alphadex First Trust (American Stock Exchange [AMEX])
| |
| * | FEMS | Facility Equipment Maintenance System
| |
| * | FEMS | Federal Environmental Monitoring System
| |
| * | FEMS | Forest Ecosystem Management Simulation
| |
| * | FEMS | Fire and Emergency Management Services
| |
| * | FEMS | Florida Electroacoustic Music Studio
| |
| * | FEMS | Food and Environmental Microbiology Services
| |