About Us

Frequency Electronics, Inc. (FEI) was founded in 1961 and is a public company headquartered in Long Island, New York.  FEI trades on the NASDAQ Stock Exchange under the symbol FEIM. The company’s management team is led by  Dr. Thomas McClelland.

FEI and its subsidiaries are major worldwide suppliers of Precision Time and Frequency (PT&F) products for ground, seaborne, airborne, and space terminals and platforms used by commercial and government/military systems suppliers. For more information about our capabilities follow this link.

It has four wholly-owned subsidiaries. FEI Communications Inc. and FEI Government Systems Inc. are located at Mitchel Field, New York; FEI-Zyfer Inc., located in Garden Grove, California; and FEI-Elcom Tech Inc., located in Northvale, New Jersey.

The Company has a long history and transformed itself from a defense contract manufacturer into a high-tech provider of precision time and frequency products used to synchronize voice, data and video transmissions in wireless communications systems.  For information about becoming a vendor, follow this link.

FEI and its subsidiaries support the United States government with custom time and frequency solutions and products for defense and space applications.

Reach out if you would like to learn more.

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Please visit our Products & Solutions page or call 516-794-4500 for more information.

FEI Provides Products and Solutions Used by
Government Agencies and Companies Since 1961

Frequency Electronics, Inc.

Precision Time & Frequency
(Space, Sea, Land, Air)

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FEI-Elcom Tech

Microwave Modules & Subsystems


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FEI-Zyfer Inc.

GPS Position, Navigation, Time & Frequency Reference Systems

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