• Keysight Technologies Inc.
• Hexagon AB
• Rohde & Schwarz GmbH & Co. KG
• Fortive Corporation (Tektronix Inc.)
• Viavi Solutions Inc.
• Advantest Corporation
• National Instruments Corporation
• Anritsu Corporation
• Trescal SA (EQT AB)
• Omega Engineering Inc. (Arcline Investment Management)