AIG, or American International Group, is a multinational insurance corporation that provides property casualty insurance, life insurance and retirement services etc.
The font used for the logo of the insurance company is probably Futura BQ Medium, with slight modification on letter A (flattened Apex). More details about the Futura typeface can be found here.
Download Futura Font
The Futura font identified above is not available for free, please follow the link above and purchase a font license to download and use the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.