- High Energy Batteries India Ltd, Tiruchirapalli, Tamil Nadu.
- Central Electro Chemical Research Institute, Karaikudi, Tamil Nadu.
- Central Electro Chemical Research Institute, Chennai, Tamil Nadu.
- Hindustan Aeronautical Ltd, Hyderabad.
- Hyderabad batteries Ltd, Hyderabad.
- HBL NIFE Power Systems Ltd, Hyderabad.
- Naval Science & Technology Laboratory, Visakhapatnam.
- Naval Stores Depot, Goa.
- Sharp batteries, Coimbatore, Tamil Nadu.
- Amman batteries, Dharmapuri, Tamil Nadu.
- AMS Batteries, Salem, Tamil Nadu.
- Alagappa Chettiar College of Engg & tech, Karaikudi, TamilNadu.
- Power Batteries, Pudukottai, Tamil Nadu.
- AMS Battery Industries, Salem, Tamil Nadu.
- Surya Batteries, Salem, Tamil Nadu.
- Raman Fiberscience Private limited, Mysore.
- Sharana Industries, Chennai
- Deepak Power Storage Enterprises, Sansarpur , Himachal Pradesh.
- Luminus power technologies, Himachal Pradesh.
- Action Batteries, Ja;andar. Punjab
- Metrial Organization Goa
- Microtex Energy P Limited Bangalore
- Tafe Power Source Chennai
- Jn Communication Trichy