Other Recognized TSCM Service Providers

CSI does not specifically recommend TSCM service providers.  However, the companies listed below are known to be established, well known, and reputable businesses. 

Granite Island Group
Founded in 1987 and located near Boston Massachusetts, Granite Island Group, is an internationally recognized leader in the field of Technical Surveillance Counter Measures (TSCM), Bug Sweeps, Wiretap Detection, Surveillance Technology, Communications Security (COMSEC), Counter-Intelligence, Technical Security, and Spy Hunting. (Note: The company’s website is very informative.)
http://www.tscm.com

TSCM Technical Services
TSCMtech is a security consulting service specializing in and dedicated to the detection of eavesdropping, electronic surveillance, and electronic espionage. They work in corporate and industrial settings throughout North America and internationally for selected clients. Their personnel have conducted sweeps for eavesdropping devices for more than 18 years.
http://www.tscmtech.com/