Channel Industries, Inc. of Santa Barbara, California was incorporated in 1959, is a leader in the manufacturing of piezoelectric ceramics and takes great pride in their ability to produce the finest ceramics available. Our leadership position has been earned through the hard work of our skilled employees. Our products are used in both military and commercial applications including underwater sonar and ultrasonics, oil exploration, earthquake faultfinding, and pilot-less igniters for gas appliances. Our product is also used in devices for medical diagnosis and treatment including dental instruments for cleaning teeth, vibrators to help sufferers of respiratory conditions, and implants for cardiac monitoring.

Electro Optical Industries, Inc. of Santa Barbara, California was incorporated in 1964, is committed to developing and manufacturing high quality, state-of-the-art test equipment, and calibration instrumentation. Their products include: UV, Visible (photopic), and Infrared Sources for Calibration, and Testing Equipment such as; Infrared Test Sets, Target Simulators, Collimators, Detector Test Sets, Radiometers, and Complete Turnkey Test Systems. This technology is used for such diverse applications as weather analysis, environment studies, search and rescue, fire fighting, night vision, missile guidance, industrial temperature control, non-destructive testing, and quality control in various industrial processes.

International Transducer Corporation of Santa Barbara, California incorporated in 1966, is a leading manufacturer of acoustic transducers for ship and submarine sonar, oceanographic survey, seismic exploration, marine life research, medical devices, and industrial proximity sensing. They have developed and manufactured thousands of different acoustic and ultrasonic transducer designs for a wide range of applications. Their transducers have been used in defense, communication, navigation control and information gathering applications. They are integral to many advanced sonar systems, position determining systems and data telemetry devices. The company also produces commercial acoustic transducers for medical, industrial, navigation, seismic exploration, seabed mining, fish tracking, and other applications requiring advanced acoustic technology.

Channel Products, Inc. of Chesterland and Jefferson, Ohio incorporated in 1972, is a leading design and manufacturing company supplying electronic and piezoceramic ignitors, gas ignition safety controls, electrodes and sensor assemblies, wire assemblies, and accessories to the gas appliance industry worldwide. Additional products include piezoelectric ceramic materials, piezoelectric transducers, nebulizers, sensors, filters and resonators. Their experience in the electronic, piezoelectric ceramic and plastic fields has positioned them to meet their customer's needs through our state of the art manufacturing capabilities and established relationships with our company's extension in China.

Sonatech, Inc. of Santa Barbara, California was incorporated in 1973, has been a leader in the design and development of underwater navigation and sonar equipment for the U.S. Navy and other various U.S. and foreign government, research, and military customers. Their design and manufacturing of reliable ocean instrumentation has led to their selection as the principal provider of deep ocean transponders to the Strategic Systems Project Office (SSPO), and they have continued to develop innovative yet highly reliable equipment and systems meeting a wide range of specific customer requirements.