Uniondale, NY
FEI-NY
Corporate headquarters and primary manufacturing hub. Atomic frequency standards, space-qualified clocks, and defense timing systems.
- 55 Charles Lindbergh Blvd, Uniondale, NY 11553
- +1 (516) 794-4500
- sales@freqelec.com
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FEI works with defense primes, government agencies, research institutions, and commercial space programs worldwide. Tell us what you need — we'll connect you with the right team.
- ITAR Registered
- ISO 9001:2015
- AS9100C
- CMMC Level 2
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OUR DIVISIONS
Many Locations. One Mission.
Each FEI division specialises in a distinct domain. Reach out to the team best matched to your program requirements.
Garden Grove, CA
FEI-Zyfer
GPS-based timing, assured PNT solutions, and network synchronization systems for telecom, defense, and commercial applications.
- 7321 Lincoln Way Garden Grove, CA 92841-1428
- +1 (714) 933-4000
- sales@fei-zyfer.com
Boulder, CO
FEI-Colorado
focuses on quantum solutions and time and frequency engineering — advancing next-generation capabilities for precision timing and navigation.
- 2830 Wilderness Place, Boulder, CO 80301
- +1 (516) 794-4500
Union Street Northvale
FEI-NJ
Advanced RF, microwave, and electronic-warfare technologies for mission-critical applications.
- 260 Union Street Northvale, NJ 07647
- +1 (201) 767-8030