Spectra Symbol - Manufacturer of membrane switches and sensors. - http://www.spectrasymbol.com/
Communication Certification Laboratory - Full service certification and testing of telecommunications and information technology equipment in the areas of telecom, EMC, and product safety. - http://www.cclab.com/
Cirris Systems Corp. - Manufacturer of cable, hipot, and wire harness testing hardware. - http://www.cirris.com/