AmpliTech Group, Inc. is a U.S.-based designer and assembler of microwave and radio-frequency components used in satellite, defense, aerospace, and 5G communications systems. Through its subsidiaries and divisions, the company sells custom low-noise amplifiers, passive microwave components, signal-processing hardware, and semiconductor packaging materials. It also has a newer systems-oriented effort through AGTGSS, which is intended to configure 5G radio systems and make them O-RAN compliant. The business is built around proprietary RF technology, custom engineering, and a strategy of expanding from niche components into broader communications subsystems and systems.