IG explained

IG, Ig, or ig may refer to:

Companies

IG Farben, a former German industrial conglomerate
IG Group, a UK financial services company
IG Recordings, a record label formed by the Indigo Girls, an American folk/rock duo
Production I.G, a Japanese anime company
Impressions Games, a defunct United States gaming company
Internet Group, stylized as "iG", a Brazilian internet service provider
Invictus Games (company), a Hungarian video game developer
Air Italy (2018–2020) (former IATA code: IG), a former Italian airline

Imperial Guard (Warhammer 40,000), from the tabletop strategy game Warhammer 40,000
Imperium Galactica, a 1997 PC CD-ROM game by Hungary-based Digital Reality
Insomniac Games, an independent video game developer
Investment Game, an international stock market simulation game
Invictus Gaming, a Chinese professional E-sports team
Invictus Games, Paralympic sporting event
Invictus Games (company), Hungarian video game developer

Immunoglobulin, also known as antibody, a protein used by the immune system to identify and neutralize foreign objects such as bacteria and viruses
Imperial gallon (ig), an Imperial unit of volume defined as 4.54609L
Insulated glazing, double or triple glass window panes separated by an air or other gas-filled space to reduce heat transfer
Integrated graphics, the term for a graphics processor that is integrated into the mainboard