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| OTHER SUPPLIERS |
| | SDS Group Ltd. | | Manufacturers of Security Equipment | | |
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| | Security Defense Systems Corporation | | Distributors of Metal and Handheld Weapons Detectors for Various Security Applications | | |
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| | Security Identification Systems Corporation | | Specializes In Identity Management Solutions That Help Promote Safety and Security of People and Their Possessions on Land, Sea, and Air | | |
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| | Security Intelligence Technologies, Inc. | | Providers of Reliable, Quality Security, Surveillance and Counter-Surveillance Tools, Consulting and Training | | |
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| | Security Options & Solutions | | Providers of Electronic Security Consulting Services | | |
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| | Securmax Inc. | | Providers of Security Services | | |
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| | See-Comm | | Providers of Technology Solutions, Including Networking, Printing Solutions, and Telephone Systems As Well As Security, Storage and Managed Services | | |
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| | Sel Security | | Providers of Security Services | | |
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| | Select Engineered Systems, Inc. | | Leaders in the Electronic Access Control/Communications Industry | | |
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| | Sem Security Management | | Providers of Security and Workplace Violence Consulting Services | | |
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| | Sensicast Systems, Inc. | | Specializes in Wireless Sensor Network Solutions | | |
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| | Sentry Technology Corporation | | Specializes in a Complete Line of CCTV, Library Patron Self Service and RFID Solutions, EAS and Access Control Security Systems | | |
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| | Siedle Communications | | Leading Communication Technology Company in the Worldwide Intercom and Access Control Markets | | |
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| | Simonsvoss Technologies, Inc. | | Specializes in Locking Systems | | |
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| | Smart Access, Inc. | | Specializes in the Design and Manufacture of Advanced Microcontroller Based Card Access Devices | | |
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| | Smiths Detection | | Leaders in Transportation Security, Based On a Combination of Trace Detection and X-Ray Security Technologies | | |
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| | Smiths Heimann | | Manufacturers of Integrated Security Solutions | | |
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| | Smiths Heimann GmbH | | Specialists in Wave Inspection, Chemical Identification, and Metal Detection Services | | |
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| | Speco Technologies | | Specializes in Highest Quality Residential and Commercial Sound, Security, CCTV Closed Circuit Video and Electronic Accessories | | |
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| | Sperry West | | Manufacturers of Video Surveillance Products | | |
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