International Maritime Organization 
International Maritime Organisation 
International Meteor Organization 
In My Opinion 
Information Management Officer 
International Mathematical Olympiad 
International Meteorological Organizat… 
Information Management Office 
Instrumentation Management Office 
idiopathic multicentric osteolysis 
image orthicon 
immobilization 
immobilization in wooden boards 
immobilization stress 
Imperial Oil Limited 
IMPERIAL OIL LTD. 
In my own opinion 
Independent Market Operator 
inflammation-mediated osteopenia 
Information Management Offices 
installation maintenance officer 
Intelink Management Office 
Intenet Mail Only 
intermolecular mol. orbital 
International MARC Office 
International Marine Organisation 
International Maritime Organization's 
International Maritime Organizatyon 
International Mathematics Olympiad 
International Meteorological Organziat…