Egis

Egis or EGIS has a variety of meanings, including:

An alternate spelling for aegis.
An acronym for Erieye Ground Interface Segment, military software package which is part of the Erieye radar and is sometimes confused with the Aegis combat system.
Egis Rt. (Egis Ltd), a Hungarian pharmaceutical company, based in Kőbánya, Hungary.
Egis Projects, a French company that manages transport infrastructure projects.
Egis explosives detector, a gas chromatography-mass spectrometry-based explosives detector, manufactured by Thermo Detection (formerly Thermedics)
An acronym for Enterprise Geographic Information System, an integrated, multidepartmental GIS composed of interoperable components.