| CHENNAI MEDICAL COLLEGE |
TRICHY |
STP, WTP |
| FRONTIER LIFE LINE HOSPITAL ( MEDIVILE ) |
GUMMIDIPOONDI |
STP, WTP |
| KALEESUWARI REFINERY PRIVATED LIMITED |
TUMKUR |
WTP, ETP, RO, UF |
| THE RAMCO CEMENTS LIMITED |
ETHILAPPANPATTI |
RO PLANT |
| THE RAMCO CEMENTS LIMITED |
ANJAN PATTI |
RO PLANT |
| THE RAMCO CEMENTS LIMITED |
KARUPPAN AASARIPATTI |
RO PLANT |
| P.M.P LUNGHI PRIVATED LTD |
SHOLINGHUR CHENNAI |
RO |
| SAC ENGINE COMPONENTS (P) LTD |
GUMMIDIPOONDI |
STP |
| SHRI SATHYA SAI MEDICAL COLLEGE & RESEARCH INSTITUTE |
TIRUPORUR |
STP |
| TMTE METAL TECH PVT LTD |
AMBATTUR CHENNAI |
RO |
| VELAMMAL MEDICAL COLLEGE HOSPITAL |
MADURAI |
STP, WTP & RO |
| VELAMMAL ENGINEERING COLLEGE |
SURAPET CHENNAI |
STP |
| VELAMMAL INSTITUTE OF TECHNOLOGY |
BODHI CAMOPUS CHENNAI |
STP |