![]() CPI ESSCO CPI ESSCO (formerly known as L-3 ESSCO) is a company manufacturing rigid radomes and antenna systems. | ![]() Frequentis California Frequentis California is a company that develops and markets aeronautical message handling systems and aeronautical information management (AIM) products. | |
Founding Date | Founding Date 1961 | Founding Date 2010 |
Type | Type Subsidiary | Type Subsidiary |
Tags | ||
Locations | Locations Ayer, US HQ | Locations Columbia, US HQ |
Employees | Employees 230 | Employees 10 |

Frequentis California is a company that develops and markets aeronautical message handling systems and aeronautical information management (AIM) products.
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