Coast Guard Intelligence (CGI) was formed in 1915 and now falls under the Dept. of Homeland Security, providing information on maritime and port security, search and rescue, and counter-narcotics.
Headquarters: Washington, D.C.
Mission: Although CGI is technically an intelligence agency, its primary mission is as an investigative arm of the Coast Guard. CGI special agents "conduct criminal, counterintelligence and personnel security investigations within the Coast Guard's area of responsibility," with the majority being criminal offenses violating military law, according to the Coast Guard's official website. However, the Coast Guard does have specialists conducting analysis and collection of intelligence.
Budget: Unknown. Like the Army, the budget has some overlap, although the 2014 budget request includes $60 million for C4ISR systems, an acronym for Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance.
CGI headquarters is relatively small, only employing about 280.