Head office - Jakarta
Ratu Plaza Building, 17th. Fl.,
Jl. Jend Sudirman No. 9
Jakarta 10270
Tel. +62-21-720-9594
Fax. +62-21-720-4546
email: info@esp.or.id

West Java Regional Office
Jl. Bagus Rangin No. 1
Bandung 40132, Jawa Barat
Tel : +62-22-2534455
Fax : +62-22-2500974

East Java Regional Office
Wisma Darmala 7th. Fl., Suite 3A,
Jl. Panglima Sudirman 101-103
Surabaya 60251
Jawa Timur
Tel. +62-31-60002346
Fax. +62-31-60002349

Yogyakarta/Central Java Regional Office
Jl. Pandega Marta No.41
Catur Tunggal-Depok
Sleman
Yogyakarta 55281
Tel.: +62-21-274-561 820
Fax.: +62-21-274-561 820

Nanggroe Aceh Darussalam Regional Office
Jl. Teuku Iskandar No. 74
Lamglumpang, Ulee Kareng
Banda Aceh 23117
Nanggroe Aceh Darussalam
Tel./Fax. +62-651-28282

North Sumatra Regional Office
Jl. Slamet Riyadi No. 6
Medan 20152
Sumatra Utara
Tel. +62-61-453-1007
Fax. +62-61-451-2884