The Corporation Wars: Dissidence (The Corporation Wars (1))

They've died for the companies more times than they can remember. Now they must fight to live for themselves.
Sentient machines work, fight and die in interstellar exploration and conflict for the benefit of their owners - the competing mining corporations of Earth. But sent over hundreds of light-years, commands are late to arrive and often hard to enforce. The machines must make their own decisions, and make them stick.
With this new found autonomy come new questions about their masters. The robots want answers. The companies would rather see them dead.
The Corporation Wars: Dissidence is an all-action, colorful space opera giving a robot's-eye view of a robot revolt.