| Acronym | Meaning |
| IBC | International Business Communications |
| IBEX | International Biotechnology EXpo |
| IBF | International Business Forum |
| IBI | Institute For Biotechnology Information |
| ICES | International Council Of Electrophoresis Societies |
| ICGEB | International Centre For Genetic Engineering And Biotechnology |
| ICHG | International Congress Of Human Genetics |
| ICPEMC | International Commission On Protection Against Environmental Mutagens And Carcinogens |
| ICRF | Imperial Cancer Research Fund |
| IEEE | Institute Of Electrical And Electronics Engineers |
| IG | IntelliGenetics |
| IGES | International Genetics Epidemiology Societies |
| IJCAI | International Joint Conference On Artificial Intelligence |
| IMA | Institute For Mathematics And Its Applications |
| IMACS | International Association For Mathematics And Computers In Simulation |
| IMAGE | Integrated Molecular Analysis Of Gene Expression |
| IMGS | Intl. Mammalian Genome Society |
| INRIA | French Natl. Inst. For Research In Computer Science And Control |
| IOM | Institute Of Medicine |
| IOR | Institute Of Religion |
| ISAG | Intl. Society For Animal Genetics |
| ISMB | Intelligent Systems For Molecular Biology |
| ISONG | Intl. Soc. Of Nurses In Genet. |
| ISQL | Interactive Standard Query Language |
| ISTR | Institute For Science Training And Research |
| IU | Indiana University |
| IUBMB | Intl. Union Of Biochemistry And Molecular Biology |
| IVD | In Vitro Diagnostic |
| JGI | Joint Genome Institute |
| KB | Kilobase |
| LANL | Los Alamos National Laboratory |
| LBNL | Lawrence Berkeley National Laboratory |
| LLNL | Lawrence Livermore National Laboratory |
| LTI | Life Technologies |
| MALDI | Matrix-assisted Laser Desorption Ionization |
| MB | Megabase |
| MBC | Massachusetts Biotechnology Council |
| MBL | Marine Biological Laboratory |
| MCD | Mouse Cytogenetic Database |
| MDA | Muscular Dystrophy Assoc. |
| MEMS | Microelectromechanical Systems |
| MGC | Mouse Genome Conference |
| MGD | Mouse Genome Database |
| MGI | Microbial Genome Initiative |
| MHC | Major Histocompatibility Complex |
| MIMBD | Meet. On The Interconnection Of Mol. Biol. Databases |
| MIT | Massachusetts Institute Of Technology |
| MMRF | Marshfield Medical Research Foundation |
| MNBWS | Miami Nature Biotechnology Winter Symposium |
| MOD | March Of Dimes |