![]() EF Johnson Technologies EF Johnson Technologies is a company that designs and supplies mission-critical radio communications systems and equipment. | ![]() Spectrum Control Spectrum Control (formerly known as APITech and API Technologies) is a company that designs and manufactures systems and components for RF, microwave, electromagnetic, power, and security applications. | |
Founding Date | Founding Date 1923 | Founding Date 1968 |
Type | Type Subsidiary | Type Subsidiary |
Tags | ||
Locations | Locations Irving, US HQ Lincoln, US Long Beach, US | Locations Fairview, US HQ Ottawa, CA Schwabach, DE Ciudad Juárez, MX Gloucester, GB Great Yarmouth, GB Ann Arbor, US see more |
Employees | Employees 4248% increase | Employees 5574% increase |

Spectrum Control (formerly known as APITech and API Technologies) is a company that designs and manufactures systems and components for RF, microwave, electromagnetic, power, and security applications.
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