What's the word used to describe an "individual-like" entity?

Question

Most people consider 'individual' to be roughly synonymous with 'person.' Specifically, they would not consider an organization an 'individual.'

However, it may be said that organizations possess beliefs, desires, responsibilities, etc. much in the same way that people do.

Is there a word that encompasses this trait of being "like an individual," and thus includes humans, organizations, etc.?

Answer 1

You used Entity in your question. I think it's the best term for what you describe.
A person, partnership, organization, or business that has a legal and separately identifiable existence.

http://www.businessdictionary.com/definition/entity.html

Answer 2

The word organism is used with this broadened sense (though it is not of course the primary sense):

organism noun ...

1.2 A system or organization consisting of interdependent parts, compared to a living being.

the Church is a divinely constituted organism

{ODO}