Exhibit 21

FREQUENCY ELECTRONICS, INC. & SUBSIDIARIES
Corporate Headquarters
55 Charles Lindbergh Blvd
Mitchel Field, NY 11553
| Subsidiary | Location | Primary Function | ||
| FEI Communications, Inc. | Mitchel Field, NY | Commercial communication systems and products | ||
| FEI Government Systems, Inc. | Mitchel Field, NY | U.S. Government systems and products | ||
| FEI-Elcom Tech, Inc. | Northvale, NJ | RF Microwave products | ||
| FEI Realty, Inc. | Mitchel Field, NY | Corporate property holdings | ||
| FEI-Zyfer, Inc. | Garden Grove, CA | GPS time and frequency receivers, synchronization systems and secure communication products |