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FEIM: The Tiny Giant Powering GPS & Space

Precision atomic clocks and PNT systems for US defense, GPS, lunar missions & LEO satellites. 120+ space projects. Record backlog.

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Meng Li
May 01, 2026
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Frequency Electronics, Inc. (NASDAQ: FEIM 0.00%↑ ) is a manufacturer specializing in the design and production of precision time and frequency control devices. Its products include quartz and rubidium atomic oscillators, RF/microwave modules, GPS, and PNT systems. Its primary customers are the U.S. government and defense sectors, with applications in satellite payloads, command, control, and communication systems, electronic warfare, and more. The company operates through two segments: FEI-NY and FEI-Zyfer, with the former contributing approximately 76% of total revenue.

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