1.Keysight Technologies India Private Limited
2.Rohde & Schwarz India Private Limited
3.Ni Systems (India) Private Limited
4.Yokogawa India Limited
5.Anritsu India Private Limited
6.Fortive India Private Limited
7.Viavi Solutions India Private Limited
8.Advantest India Private Limited
9.Texas Instruments (India) Private Limited
10.EXFO Electro-Optical Engineering India Private Limited.
11.Endress + Hauser (India) Private Limited