Ritron, Inc. is a privately held U.S. corporation located in a suburb northeast of Indianapolis, Indiana. The company was founded in 1977 by E. W. (Bill) Rice III, BSEE Purdue. Mr. Rice worked as an electronic countermeasures project engineer at the U. S. Naval Avionics Facility in Indianapolis. During his tenure at the Hazeltine Corporation he was instrumental in developing the world's first general aviation transponder.

Today, the core competency of the company is the design and manufacture of wireless (RF) voice and data communication products for business and industry. Products include: portable and mobile 2-way radios; vandal-resistant radio callboxes; base stations and wireless mass notification systems. A wide range of "customized" wireless transceivers and radio modems is also offered for the Original Equipment Manufacturer (OEM) and integrator marketplace.