1. ABB India Ltd
2. Siemens India Limited
3. Alstom T&D India
4. Kirloskar Electric Company Limited
5. Gujarat Transformers Pvt. Ltd
6. Urja Techniques (India) Pvt. Ltd
7. Uttam Bharat
8. Kotsons Pvt. Ltd
9. ABC Transformers
10. Servomax Limited