- Chirasthaayee Saurya Limited
- Clean Sustainable Solar Energy Private Limited (subsidiary of Walwhan Renewable Energy Limited)
- Dreisatz Mysolar24 Private Limited (subsidiary of Walwhan Renewable Energy Limited)
- Dugar Hydro Power Limited
- Industrial Energy Limited
- Maithon Power Limited
- MI Mysolar24 Private Limited (subsidiary of Walwhan Renewable Energy Limited)
- NDPL Infra Limited (subsidiary of Tata Power Delhi Distribution Limited)
- NELCO Limited
- NELCO Network Products Limited (subsidiary of NELCO Limited)
- Nivade Windfarm Limited (subsidiary of Tata Power Renewable Energy Limited)
- Northwest Energy Private Limited (subsidiary of Walwhan Renewable Energy Limited)
- Poolavadi Windfarm Limited (subsidiary of Tata Power Renewable Energy Limited)
- Powerlinks Transmission Limited
- Solarsys Renewable Energy Private Limited (subsidiary of Walwhan Renewable Energy Limited)
- Supa Windfarm Limited
- Tata Power Delhi Distribution Limited
- Tata Power Green Energy Limited
- Tata Power Jamshedpur Distribution Limited
- Tata Power Renewable Energy Limited
- Tata Power Solar Systems Limited
- Tata Power Trading Co. Limited
- Tatanet Services Limited (subsidiary of NELCO Limited)
- TCL Ceramics Limited
- TP Adhrit Solar Limited
- TP Agastaya Limited
- TP Ajmer Distribution Limited
- TP Akkalkot Renewable Limited
- TP Alpha Limited