|This article is about the the Chaos Space Marines unit. For other uses of Company, see Company (disambiguation).|
A Grand Company is a combat unit within the Iron Warriors Legion. Similar to a Chapter, a Grand Company will be under the authority of a Warsmith and be composed of several regular Companies lead by Captains. The number of companies that will be part of the Grand Company will vary, depending on both the number of Chaos Space Marines in the Grand Company, and if the Grand Company has been able to absorb any other Grand Companies (usually by virtue of killing a rival Warsmith). At least three companies have been observed operating as a single Grand Company.
- 1: Storm of Iron (Novel) by Graham McNeill, Bridgehead, Part Four
- 2: Dead Sky, Black Sun (Novel) by Graham McNeill, Prologue