NO. INSTITUTION 
1  PERPAMSI ( Persatuan Perusahaan Air Minum Seluruh Indonesia /Association of Indonesian water companies)
 2  PT. Air Cerdas Ganesha
 3  KADIN Bidang Lingkungan Hidup. (Environment Division, Trade and Industry Chamber of Indonesia)
 4  INKINDO (Ikatan Nasional Konsultan Indonesia / the National Association of Indonesian Consultants)
 5  Perum Jasa Tirta I ( Brantas River Basin Management Corporation)
 6  Perum Jasa Tirta II (  Citarum River Basin Management Corporation)
 7  PT. Brantas Abipraya
 8  PT. Tata Guna Patria
 9  PT. Inakko
 10  PT. Aqua Golden Mississipi
 11  PT. Thames PAM Jaya
  12 PT. Indocement Tunggal Prakarsa
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