ILSI, MMD, Ecliptek, Oscilent (ILSI America) (Abracon)
Abracon, ILSI, MMD, Ecliptek, Oscilent, Fox, AEL, ProAnt, NEL Frequency Controls
Quantum Semiconductor International (QSI America)
Ecliptek (ILSI America) (Abracon)
Oscilent (Abracon)
MMD - Monitor Quartztek (ILSI-MMD) (Abracon)