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Cemtrex, Inc. operates as a technology company in the United States and internationally. It operates through Security, Industrial Services, and Cemtrex Corporate segments. The company offers browser-based video monitoring and analytics-based recognition systems, cameras, servers, and access control systems for security and surveillance in industrial and commercial facilities, federal prisons, hospitals, universities, schools, and federal and state government offices; and provides critical security and video surveillance solutions utilizing artificial intelligence based data algorithms. It also provides services for rigging, millwrighting, in plant maintenance, equipment erection, relocation, and disassembly; installs high precision equipment in various industrial markets comprising automotive, printing and graphics, industrial automation, packaging, chemicals and others; and provides maintenance and contracting solutions for the machinery, packaging, printing, chemical, and other manufacturing markets. The company was formerly known as Diversified American Holding, Inc. and changed its name to Cemtrex, Inc. in December 2004. Cemtrex, Inc. was incorporated in 1998 and is headquartered in Brooklyn, New York.

hopTo Inc., together with its subsidiaries, develops and sells application publishing software in the United States, Brazil, Japan, Germany, the Netherlands, and internationally. The company's application publishing software includes application virtualization and cloud computing software for a range of computer operating systems, including Windows, UNIX, and various Linux-based variants. It provides its application publishing software solutions under the GO-Global brand name. The company offers GO-Global, an application access solution that provides cross-platform remote access and Web-enabled access to existing software applications, as well as the deployment of secure and private cloud environments for use and/or resale by independent software vendors, corporate enterprises, governmental and educational institutions, and others. Its GO-Global software products comprise GO-Global for Windows that allows access to Windows-based applications from remote locations and Internet connections; GO-Global for UNIX, which allows access to UNIX and Linux-based applications from remote locations, and Internet and connections; and GO-Global Client that allows remote application access from various local, remote, and mobile platforms, including Windows, Linux, UNIX, Apple OS X and iOS, and Google Android. The company sells its products through resellers, such as original equipment manufacturers, system integrators, value-added resellers, and distributors. It serves small to medium-sized companies, departments within large corporations, governmental and educational institutions, and independent software vendors. The company was formerly known as GraphOn Corporation and changed its name to hopTo Inc. in September 2013. hopTo Inc. was incorporated in 1996 and is headquartered in Concord, New Hampshire.

Tel-Instrument Electronics Corp. designs, manufactures, and sells avionics test and measurement instruments for the commercial air transport, general aviation, and government/military aerospace and defense markets in the United States and internationally. It operates in two segments, Avionics Government and Avionics Commercial. The company provides instruments to test, measure, calibrate, and repair a range of airborne navigation and communication equipment. Its products include TS-4530A and T-4530i, an identification friend or foe test sets; and T-47/M5, a dual crypto test set. The company also offers AN/USM-708 and AN/USM-719 communications/navigation radio frequency avionics flight line testers; SDR/OMNI, an avionics test set; and Lockheed Martin MADL test set, a secure communications radio for the F-35. It serves customers directly or through distributors. The company was incorporated in 1947 and is headquartered in East Rutherford, New Jersey.

Video Display Corporation, together with its subsidiaries, designs, engineers, manufactures, markets, distributes, and installs display products and systems for government, military, aerospace, medical, and commercial organizations worldwide. The company operates in four divisions: Simulation and Training Products; Cyber Secure Products; Data Display CRTs; and Other Computer Products. It offers dome and multi-faceted aircraft simulator display systems, video walls for broadcast and control centers, rugged video walls for combat information centers, rugged flat panel displays and computers, projector and monitor upgrades, and projection screens. The company also provides cyber security products, such as TEMPEST technology products and custom engineering solutions; and various contract services, including the design and testing solutions for defense and niche commercial uses. In addition, it manufactures and distributes cathode ray tubes (CRTs) for use in data display screens, such as computer terminal monitors, medical monitoring equipment, and various other data display applications, as well as in television sets; and distributes CRTs and other electronic tubes purchased from original equipment manufacturers, as well as offers cyber-secure keyboards. The company was founded in 1975 and is headquartered in Cocoa, Florida.