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| | Investigators - Investigation, Security, Fire and Security, Business Services, Business 530
Surveillance - Security, Fire and Security, Business Services, Business 292
HERF, EMP, Tempest - Hacking, Computers 3
Consultants - Security, Computers 542
 Advanced CountermeasuresAdvanced Countermeasures
 Offers services in locating electronic eavesdropping devices through electronic detection and manual inspection. Serves the Midwestern US.
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AEGIS Defence Services LtdAEGIS Defence Services Ltd
 Security consultants specialising in technical surveillance countermeasures, information security and corporate investigations. Based in Scotland.
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Artemis Security Solutions LtdArtemis Security Solutions Ltd
 Offer counter-surveillance sweep and inspection services. Details of services, equipment used and company background. Based in London, United Kingdom.
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Audio Visual Security Ltd.Audio Visual Security Ltd.
 CCTV products and equipment.
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Audiotel InternationalAudiotel International
 Manufacturer of counter surveillance electronics including harmonic receivers, junction detectors, bug and mobile phone detectors and cable checkers. Located in Corby, United Kingdom.
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Communication Security Inc.Communication Security Inc.
 Technical surveillance countermeasure services. Bay City, Texas.
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CPT International Ltd.CPT International Ltd.
 Covert surveillance training, countermeasures, and technical security as well as exhibition and corporate event security.
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EED Co, IncEED Co, Inc
 Offer counter-surveillance sweep services. Tools used, credentials and contact details. Based in New York, USA.
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Executive World ServicesExecutive World Services
 Assistance to business and government in the detection and nullification of electronic information theft and eavesdropping systems. Braselton, Georgia.
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Granite Island GroupGranite Island Group
 Telecommunications security, counterintelligence, and security consulting. Based in Massachusetts.
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International Procurement Services LtdInternational Procurement Services Ltd
 Electronic counter measures sweeps in the United Kingdom.
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International Procurement Services Ltd.International Procurement Services Ltd.
 Features security equipment for government and corporate users. Specializes in electronic counter measures and team training. UK based.
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J.A. Lasorsa & AssociatesJ.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.
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Murray AssociatesMurray 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.
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Professional Development TSCM Group Inc.Professional Development TSCM Group Inc.
 Offers professional level services and advanced training for government, military, law enforcement, corporate, and the financial sector.
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Research Electronics InternationalResearch Electronics International
 Offer training in how to conduct counter-surveillance investigations. Also design and manufacture electronic countermeasure equipment. Based in Algood, Tennessee, USA.
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Spy Nexus Inc.Spy Nexus Inc.
 Bug detectors, counter-surveillance equipment, telephone tap and phone wiretap detection devices, and body wire detectors.
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Technical Security Consultants Inc.Technical Security Consultants Inc.
 Services in the areas of electronic countermeasures and protection of proprietary information, training and seminars. Carrollton, Georgia.
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TSCMTSCM
 Debugging and eavesdropping detection training and services. Based in South Africa.
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TSCM Technical ServicesTSCM Technical Services
 Security consulting service dedicated to the detection of eavesdropping and electronic surveillance.
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