What is an in-house design studio?

and the type of organisations that require them .. please expand !!What is an in-house design studio?
';in house'; means it's part of another, larger company. For example, an insurance company, corporate bank or whatever, will have an ';in-house'; design group that will deal with the company design needs, such as brochures, web site, marketing material etc. If a large company has a lot of design work, then it's often cheaper to have it all done in house, rather than get an agency involved every time they need something doing.What is an in-house design studio?
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