Frequency Electronics, Inc.

Frequency Electronics, Inc. (FEI) is a global leader in the design, development, and manufacture of high-precision timing and frequency control products. Established in 1961 and headquartered in Uniondale (Mitchel Field), Long Island, New York, the company's mission is to provide precision time and low-phase-noise frequency generation systems for demanding environments, including space, air, sea, and terrestrial applications.

FEI's product portfolio includes a wide range of precision time and frequency (PT&F) solutions such as quartz, rubidium, and cesium oscillators, atomic clocks (including Rubidium Atomic Standards and Mercury Ion atomic clocks), GPS-disciplined oscillators (GPSDOs), microwave synthesizers, integrated timing subsystems, DC-DC power converters, hybrid assemblies, and RF microwave modules. These products serve critical market segments including commercial, government, and military systems, satellite payloads, telecommunications, wireless communications, navigation, electronic warfare, C4ISR, intelligence collection, and test and measurement.

Led by CEO Dr. Thomas McClelland, Frequency Electronics is publicly traded on the NASDAQ Stock Exchange under the ticker symbol FEIM. The company reported fiscal year 2025 revenue of $69.81 million and earnings of $23.69 million. FEI recently announced a three-year revenue target of at least $150 million by April 30, 2029, driven by an expanding backlog and entry into larger end-markets. The company is actively investing in quantum sensing initiatives, developing next-generation products like Mercury Ion atomic clocks for the U.S. Navy, and has engaged in strategic collaborations, such as a partnership with Leidos on quantum magnetometers.