Clandestine Services Agency is a Chicago based investigative firm specializing in surveillance and countersurveillance. Owned and operated by Joseph Keating, a former FBI National Security Division Intelligence Investigator, Clandestine Services Agency serves the business, insurance, government and private party communities with professional and confidential investigative services.


	The expertise of CSA lies in the collection of intelligence and gathering of evidence through surveillance, countersurveillance and supporting background investigations or investigative techniques. We specialize in one area of private investigation because of our unmatched experience and credentials. CSA can, through its network of equally credentialed investigative firms, provide clients with a complete investigative or security solution. The working philosophy at CSA is to provide our clients with absolute integrity, individualized personal service, clear communication, and unmatched professional service. The relationship we build with each client is of utmost importance. Choosing CSA ensures you and/or your agency's investigative concerns are protected.