From Envirowiki

A corporation is a commercial body that attempts to gather a profit. Corporation is somewhat synonymous with company in terms of business.

The corporation in most western countries is considered an individual (even though it is a meta-entity run by humans), with the rights of the individual, but often with less responsibilities - there are not many laws requiring corporate social responsibility. The film "The Corporation" notes that a corporation, due to its willingness to destroy lives and ecosystems to make a profit, should rightly be considered a psychopath.