Petrochina Tuban

PT. Karyadibya Mahardhika

Kefamenanu NTT (Daerah Langka Air)

PT. Surya Inti Tembakau (Gudang Garam Group)

PT. Tirta Fresindo Jaya (Mayora Group)

Akuisisi Data Geolistrik Resistivitas

PT. Gudang Garam, Tbk

PT. Satoria Aneka Industri

Bukit Dhoho Indah (Gudang Garam Group)

Penelitian Air Bawah Tanah

PT. Sinar Sosro