Granite Island Group 
Telecommunications security, counterintelligence, and security consulting. Based in Massachusetts.
http://www.tscm.com/Communication Security Inc. 
Technical surveillance countermeasure services. Bay City, Texas.
http://www.bugsweep.com/
Technical Security Consultants Inc. 
Services in the areas of electronic countermeasures and protection of proprietary information, training and seminars. Carrollton, Georgia.
http://www.dbugman.com/
International Procurement Services Ltd 
Electronic counter measures sweeps in the United Kingdom.
http://www.securitysearch.co.uk/
TSCM Technical Services 
Security consulting service dedicated to the detection of eavesdropping and electronic surveillance.
http://www.tscmtech.com/
Executive World Services 
Assistance to business and government in the detection and nullification of electronic information theft and eavesdropping systems. Braselton, Georgia.
http://executiveworldservices.com/
TSCM 
Debugging and eavesdropping detection training and services. Based in South Africa.
http://www.tscm.co.za/
Advanced Countermeasures 
Offers services in locating electronic eavesdropping devices through electronic detection and manual inspection. Serves the Midwestern US.
http://counterspy.iwarp.com/
EED Co, Inc 
Offer counter-surveillance sweep services. Tools used, credentials and contact details. Based in New York, USA.
http://www.bugfinderusa.com/
Artemis Security Solutions Ltd 
Offer counter-surveillance sweep and inspection services. Details of services, equipment used and company background. Based in London, United Kingdom.
http://www.artemis-tscm.com/
Research Electronics International 
Offer training in how to conduct counter-surveillance investigations. Also design and manufacture electronic countermeasure equipment. Based in Algood, Tennessee, USA.
http://www.research-electronics.com/
Professional Development TSCM Group Inc. 
Offers professional level services and advanced training for government, military, law enforcement, corporate, and the financial sector.
http://ipg-protect.com/
Murray Associates 
Eavesdropping detection and counterespionage consulting services. Includes espionage newsletter archive and downloadable guidance on security and bug detection. Based in Oldwick, New Jersey, USA.
http://www.spybusters.com/
J.A. Lasorsa & Associates 
Provides debugging, anti-wiretapping, and audio countermeasure services, security services and consulting, confidential investigations, executive protection, threat and vulnerabiltiy assessments, workplace and school violence consulting, and computer network security.
http://www.lasorsa.com/
International Procurement Services Ltd. 
Features security equipment for government and corporate users. Specializes in electronic counter measures and team training. UK based.
http://www.intpro.co.uk/
Spy Nexus Inc. 
Bug detectors, counter-surveillance equipment, telephone tap and phone wiretap detection devices, and body wire detectors.
http://www.spy-nexus.com/
Audio Visual Security Ltd. 
CCTV products and equipment.
http://www.avsecurity.com
CPT International Ltd. 
Covert surveillance training, countermeasures, and technical security as well as exhibition and corporate event security.
http://www.cpt-i.com/
AEGIS Defence Services Ltd 
Security consultants specialising in technical surveillance countermeasures, information security and corporate investigations. Based in Scotland.
http://www.aegisworld.com/
Audiotel International 
Manufacturer of counter surveillance electronics including harmonic receivers, junction detectors, bug and mobile phone detectors and cable checkers. Located in Corby, United Kingdom.
http://www.audiotel-support.com/