Investigative Research, Inc.

Investigative Research, Inc. is a private investigation agency based in Phoenix, Arizona. It presents itself as a general private investigation practice for individuals, businesses and legal clients who need verified facts.

Its published services include professional investigations for municipalities, utility and insurance companies, the legal community and businesses.

The company states that it has provided professional investigations since 1978, that it was founded by Keith Sobraske and that it is regarded as one of the established investigation agencies of the Southwest.