Paul Chamberlain International PCI is a complete-service investigative and security consulting company situated in Los Angeles, California. In 1981, after a distinguished nineteen-year career as a Special Agent for the Federal Bureau of Investigation, Paul Chamberlain established Paul Chamberlain International.
Martin Investigation Agency, Inc. has provided excellent investigative and surveillance services in Southern California for more than 50 years. Founded in the County of Los Angeles in 1962 by Mr. Michael Martin, and incorporated in 1969. After many years of successful sleuthing, Mr. Martin hung up his trench coat and retired in late 1995.