![]() K&L Microwave K&L Microwave is a manufacturer of RF and microwave filters, duplexers, and integrated assemblies. | ![]() 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. | ![]() LGL Group LGL Group (formerly known as Lynch) is a holding company engaged in services, merchant investment, and manufacturing business activities. | |
Founding Date | Founding Date 1971 | Founding Date 1968 | Founding Date 1917 |
Type | Type Subsidiary | Type Subsidiary | Type Public |
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Locations | Locations Salisbury, US HQ | Locations Fairview, US HQ Ottawa, CA Schwabach, DE Ciudad Juárez, MX Gloucester, GB Great Yarmouth, GB Ann Arbor, US see more | Locations Orlando, US HQ Wakefield, US |
Employees | Employees 1441% increase | Employees 5574% increase | Employees 740% 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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LGL Group (formerly known as Lynch) is a holding company engaged in services, merchant investment, and manufacturing business activities.
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