Manufacturing of ferrite microwave components, including yttrium garnets, circulators, isolators, phase shifters, attenuators, equalizers, limiters, and mixers
1,635 FACILITIES| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Germantown Plant | Germantown | WI | 100–499 | LIKELY ACTIVE |
| Halfmoon Power Technologies LLC | Halfmoon | NY | — | LIKELY ACTIVE |
| Hawk Electronics INC | Buffalo Grove | IL | — | LIKELY ACTIVE |
| Hdq/lin | Lincolnshire | IL | 20–99 | LIKELY ACTIVE |
| Hermetic Switch Inc d/b/a HSI Sensing | Chickasha | OK | 100–499 | LIKELY ACTIVE |
| Hetronic USA | Oklahoma City | OK | 20–99 | LIKELY ACTIVE |
| Hi-rel Products, LLC | Essex | CT | — | LIKELY ACTIVE |
| Honeywell Columbus HSEMS | Columbus | OH | 100–499 | LIKELY ACTIVE |
| Horseheads Manufacturing Plant | Horseheads | NY | 100–499 | LIKELY ACTIVE |
| Host Automation Products, LLC | Jonesborough | TN | — | LIKELY ACTIVE |
| Howard a Schaevitz Technologies INC | Hampton | VA | — | LIKELY ACTIVE |
| Huntertown | Fort Wayne | IN | 100–499 | LIKELY ACTIVE |
| i3 Technology Management Group, LLC. | Binghamton | NY | 20–99 | LIKELY ACTIVE |
| Infinid Technologies, INC | Pasadena | CA | — | LIKELY ACTIVE |
| Innovativetek, INC. | Upland | CA | — | LIKELY ACTIVE |
| Inotek LLC | Layton | UT | — | LIKELY ACTIVE |
| Intact Sl INC | Bronx | NY | — | LIKELY ACTIVE |
| Intelliguard Group, LLC | Englewood | CO | — | LIKELY ACTIVE |
| Jadak | Syracuse | NY | 20–99 | LIKELY ACTIVE |
| Jmk INC | Amherst | NH | — | LIKELY ACTIVE |
| J.s.m. Electronics, INC | Longwood | FL | — | LIKELY ACTIVE |
| Kavlico Corporation | Thousand Oaks | CA | — | LIKELY ACTIVE |
| KCNSC East | Kansas City | MO | 100–499 | LIKELY ACTIVE |
| Kijero, LLC | Morgan Hill | CA | — | LIKELY ACTIVE |
| Knick Interface LLC | Milford | OH | — | LIKELY ACTIVE |
FactoryRegistry lists 1,635 facilities whose primary industry classification is one of the 1 industry above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced ferrite microwave components, including yttrium garnets, circulators, isolators, phase shifters, attenuators, equalizers, limiters, and mixers, in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.
The U.S. Census Bureau recorded this product line in 1 US manufacturing industry in the 2022 Economic Census, as the most specific line that industry reported, where 101 establishments reported producing it.
These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.
NAPCS collection code 2033900005. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.
