![]() 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. | ![]() Indium Corporation Indium Corporation (also known as The Indium Corporation of America) is a company that develops, manufactures, and supplies electronics assembly materials. | ![]() 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 1934 | Founding Date 1917 |
Type | Type Subsidiary | Type Subsidiary | Type Private | Type Public |
Tags | ||||
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 Clinton, US HQ Shenzhen, CN Suzhou, CN Landshut, DE Chennai, IN Cheongju, KR George Town, MY see more | Locations Orlando, US HQ Wakefield, US |
Employees | Employees 1441% increase | Employees 5574% increase | Employees 7991% increase | Employees 740% increase |
Operating ⚠ | ||||
Product Categories | Product Categories N/A | Product Categories 8 (May, 2024) | Product Categories 12 (May, 2024) | Product Categories N/A |
Funding | ||||
Total funding raised | Total funding raised N/A | Total funding raised $ 165.4m | Total funding raised $ 3.2m | Total funding raised N/A |

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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Indium Corporation (also known as The Indium Corporation of America) is a company that develops, manufactures, and supplies electronics assembly materials.
View company
LGL Group (formerly known as Lynch) is a holding company engaged in services, merchant investment, and manufacturing business activities.
View company