Educational Technolgy Inc

Earmark, located in Hamden, Conn., designs and manufactures durable wireless communication systems for use by teams operating in difficult and/or hazardous and high noise environments. Earmark is renowned for its extremely rugged and reliable, yet easy to use products. The range and flexibility of Earmark systems are unique. Furthermore, Earmark is well known for its commitment to understanding the working conditions of its customers, the industries that they work in and providing the best possible solutions on a case-by-case basis. In addition, Earmark owns several patents and trademarks on its technology and products. Its main products and systems consist of radio headsets, belt worn radios, repeating base station radios, belt-worn voice amplifiers and microphones.

Russell Industries Inc., founded in 1966, is a manufacturer and distributor of electronic components. The company operates along with its various affiliated companies, which include Dowpak, Seneca Fuses, Empire, EVG, PRB Line, Conco Electronics and Eiger Electronics. Based in Oceanside, N.Y., Russell Industries Inc. offers a wide range of electronic products, such as electrical accessories, antennas, bumpers/grommets, cable ties, capacitors, circular connectors, lettering, spiral wraps, hardware, shrinkable tubing and solderless terminals among others. The company s other divisions offer circuit boards, cooling fans, multicore solder, resistors, etc.

Vicon Industries designs, manufactures, assembles and markets a range of video systems and system components used for security, surveillance, safety and control purposes by a group of end users. The company's primary business focus is the design of digital video systems and components that it produces and sells worldwide, primarily to installing dealers, system integrators, government entities and distributors. Its product line consists of approximately 700 products, of which about half represent model variations. Vicon Industries' product line consists of various elements of a video system, including network video servers and related video management software, analog and Internet protocol cameras, digital recorders, display units, matrix switching equipment for video distribution, robotic camera dome systems, system controls and consoles for system assembly. In October 2004, it acquired Videotronic Infosystems, a Germany-based video system supplier. The company is headquartered in Hauppauge, N.Y.