- BASF SE
- Central Drug House
- Deepak Fertilisers and Petrochemicals Corporation Limited (DFPCL)
- Dow
- Eastman Chemical Company
- Exxon Mobil Corporation
- HiMedia Laboratories
- Honeywell International Inc.
- LyondellBasell
- Paari Chem Resources
- Penta Manufacturer
- Pon Pure Chemicals
- RIDHDHI SIDHDHI CHEMICALS
- Royal Dutch Shell PLC
- Solventis