Android Netrunner Comprehensive Unofficial Rules Wiki
See also the List of all Corporation cards and the Corporation category.
Page 30, Column 2, Paragraph(s) 4, Core Rule Book
Corporation: One of the two sides available to the player in Android: Netrunner; the opponent of the Runner. Referred to as "the Corp" on card text.

The Corporation ("Corp" for short) is one of the sides that a player can play in Android: Netrunner. Playing the Corporation is markedly different from playing the Runner, as it is mostly a defensive, bluffing style of game wherein the Corporation plays his/her cards facedown and attempts to protect himself from the Runner's run attempts.

There are five main types of Corporation cards: Agendas, Assets, Upgrades, Operations, and Ice.