IMI, as it is abbreviated, was formed in 1933. It manufactures all manner of firearms, from small arms and machine guns to rockets and electronic systems.
IMI's small arms are some of the most popular in the world. The Uzi submachine gun is arguably the most popular submachine gun in the world, especially with terrorists and, ironically, counter-terrorists (because of its compact nature and reliability). Possibly, the MP5 surpasses its popularity, but only within counter-terrorist networks. Overall, the Uzi has the highest sales statistics of all modern submachine guns, worldwide.
The IMI Galil is a compact assault rifle, being an adaptation of the AK-47 rifle, along with integrating some other design features. The Negev is IMI's main light machine gun. The Jericho is a semi-automatic pistol, while the Tavor is a bullpup assault rifle, similar to the FAMAS.
Other products are created, mainly for use by Israeli Defense Forces. The Uzi, however, is popular (as stated before) with many forces worldwide, while the Galil and Tavor are popular with counter-terrorist forces.