API designs, develops and manufactures systems, subsystems, RF and secure communications solutions for technically demanding defense, aerospace and commercial applications. 


CMT offers high quality lumped element filters, cavity filters, combline filters and waveguide filters, used in a variety of wireless, space and defense applications.

Cryptek emanation security products and information assurance solutions safeguard the world's most sensitive information assets by protecting IT systems and confidential data from those who may do harm.

By leveraging state-of-the-art mechanical and electronic design tools, we develop and maintain products that are required in government environments that process sensitive or classified information. At the core of Emcon product and services expertise is in-depth knowledge of Compromising Emanations.

Since 1969, major producers of communications equipment, peripherals, instrumentation, and process control equipment have trusted Filtran® brand electronic components for use in a wide variety of commercial and military products. 

Inmet (formerly Aeroflex / Inmet) is a solution minded, performance driven, and customer focused global supplier of passive RF and Microwave components for markets such as:

ION is the most trusted name in remote device management and secure access technology. ION appliances and software enable service providers, equipment manufacturers, government and military agencies, and corporations to remotely manage, monitor, and secure critical voice and data networks.

First launched in 1971, the Keytronics® brand of products spans custom magnetic devices, transformers and custom electronic equipment designed and manufactured in accordance with the requirements of MIL-T-27.

A leading name in specialised system critical electronics requiring precision and high reliability in harsh environments, the product line includes both proprietary and custom-designed electronics for a broad range of applications.

First launched in 1972, RTI Electronics brand products include passive electronic components including film capacitors, magnetic transformers and inductors, and audio power conditioning units.

Running Springs Audio Power Devices are designed and manufactured by hand with Proprietary Precision Capacitance Technology (PPCT) to provide managed, differential power distribution to audio/video systems. The dynamic nature of RSA Power Devices is threefold:

Secure Systems & Technologies (SST) specializes in the development and manufacture of electronic equipment for military and secure government organizations throughout NATO and Europe.

SenDEC  provides comprehensive electronic manufacturing services (EMS)

For more than thirty years, Sensonics vibration devices have fulfilled the anti-friction requirements of manufacturers who supply instrumentation for the military, commercial and general aviation markets.

Founded in 1968, the Spectrum Control brand is best known for its leading line of Electromagnetic Interference (EMI) filters.

Explore Spectrum Microwave, one of the world's leading brands of RF, microwave and millimeter wave products, including filters, frequency sources, components, and IMAs.

Spectrum Power: The most trusted name in power management and custom power solutions for commercial and defense applications. 

For over sixty years the name Weinschel has become synonymous with leadership in RF and microwave technologies and superior quality components and subsystems for wireless, defense, test and measurement, and broadband markets throughout the world. Among its many technological achievements, Weinschel was the first to design and manufacture commercially available coaxial attenuators. Today, built upon a strong heritage, Weinschel (formerly Aeroflex / Weinschel) continues to provide a vast array of standard products together with custom-engineered solutions to satisfy demanding market needs for precision and high reliability coaxial components.