Apook Corporation

In the Nintendo Comic Series, the Apook Corporation is a giant corporate conglomerate that sells and produces most of the commercial products in the Mushroom Kingdom. It is implied that it is in some manner run by Bowser for the citizens of his Koopa clan, though Mario and friends seem to use Apook products as well from time to time. The biggest retailer of Apook products is the Koopamart.

Trivia

 * Apook spelled backwards is actually Koopa.