Lexel Imaging Systems, Inc.
- Cathode Ray Tube (CRT) manufacturer for industrial, commercial and military display applications.
- http://www.lexelimaging.com/

Video Display Corporation
- Manufactures and distributes cathode ray tubes for use in television sets and data display screens and manufactures electron guns. (Nasdaq: VIDE).
- http://www.videodisplay.com/

Princeton Display, Inc.
- Distributor of cathode ray tubes and other display components.
- http://www.princetondisplay.com

GD' Tronics
- Design and market monitors ranging from open frame monitors to industrial, marine and multimedia monitors.
- http://www.gdtronics.com/

North American Imaging
- Manufacturer of medical and industrial x-ray tubes, image intensifiers, CT units, DICOM ultrasound, camera systems, and high-voltage cables for equipment manufacturers, re-manufacturers, service organizations, and end users.
- http://www.tubenet.com/