Spellman High Voltage Electronics Corporation is the world's leading independent manufacturer of dc high voltage power supplies, x-ray generators and Monoblock® x-ray sources.

Anatech Electronics offers standard and custom RF & microwave bandpass filters, duplexers, multi-band combiners, LP, HP, directional couplers, power dividers, in cavity, waveguide, ceramic, SAW, crystal, & LC filters, used in wireless and defense systems.