The LGL Group, Inc. is a holding company with subsidiaries engaged in manufacturing electronic components. The Company operates through its principal subsidiary, M-tron Industries, Inc., which includes the operations of M-tron Industries, Ltd. (Mtron) and Piezo Technology, Inc. (PTI). The combined operations of Mtron and PTI are referred to as MtronPTI. MtronPTI has operations in Orlando, Florida, Yankton, South Dakota, and Noida, India. MtronPTI manufactures and markets electronic components used primarily to control the frequency or timing of signals in electronic circuits. Its devices are also used in electronic systems for military applications, avionics, earth orbiting satellites, medical devices, instrumentation, industrial devices, and global positioning systems.