- (AU) Avalon Systems Pty. Ltd.
 - Engineering services in the radar and EW fields. - Akon, Inc.
- Develops and manufacturers sophisticated RF/Microwave, integrated subassemblies and components for military and space programmes.
- ARC Radar and Communication Services
- Logistical and technical services for the airport, radar, and communications industries. Specialising in system end-of-life and obsolescence issues.
- Array Systems Computing Inc.
- Systems for airborne and satellite synthetic aperture radar processing, conventional radar processing, sonar signal processing and remote sensing ground stations.
- Coherent Technologies, Inc.
- Engage in the development of coherent laser radar systems and subsystems with various applications in atmospheric remote sensing and in target tracking, ranging, and imaging.
- Condor Systems, Inc.
- Manufactures ELINT, ESM and EW systems.
- Decatur Electronics, Inc.
- Manufacturer of speed measurement products for traffic, sport, and railroad.
- Electro-Radiation, Inc.
- Analyzes, researches, designs, develops, and manufactures interference and interference mitigation electronics for defence and commercial use.
- Emrad Limited
- Manufacturers of the Pipe Hawk, a ground penetrating radar, for the detection of all buried pipes and cables.
- Folsom Research, Inc
- Designs and manufactures specialised video and radar scan converters, and digital image processing products.
- Harris Acoustic Products
- Supplier of transducers, hydrophones, sonar devices, and communications systems.
- Interphase Technologies
- Manufacturer of phased array, forward scanning sonar for use on light commercial and recreational vessels. Used for fishing, cruising, scuba divers, and sailing.
- Lamda System Engineering Ltd.
- Radar, C3I, and ATC systems engineering and consulting.
- Massa Products Corporation
- Air ultrasonic transducers and underwater sonar systems.
- Megapulse, Inc.
- Radio navigation systems and Loran-C transmitters.
- Metratek, Inc.
- High-performance radar and sonar systems for remote sensing and target measurements.
- Pacific Northwest Radar School
- Offering training in the use of Radar and GMDSS.
- Primagraphics Ltd.
- Graphics and image handling solutions provider, designing and manufacturing high-performance systems.
- Radarscan Inc.
- Use ground penetrating radar to conduct subsurface and civil surveys.
- SSR Engineering, Inc.
- Software development, systems integration, and consulting services for real-time radar, sonar, image processing, and display applications, including the PC-RP radar processor.
- Stalker Radar
- Manufactures police and sport radar guns, speed displays, and laser guns.
- System Planning Corporation (1)
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