PT. Gudang Garam, Tbk

PT. Karyadibya Mahardhika

Akuisisi Data Geolistrik Resistivitas

PT. Tirta Fresindo Jaya (Mayora Group)

PT. Satoria Aneka Industri

Petrochina Tuban

Penelitian Air Bawah Tanah

Bukit Dhoho Indah (Gudang Garam Group)

Kefamenanu NTT (Daerah Langka Air)

PT. Surya Inti Tembakau (Gudang Garam Group)

PT. Sinar Sosro