Past and present clients include the following companies:
| Company | Location | |
|---|---|---|
| Strike Operations Ltd | East Kalimantan, Indonesia | |
| Transcoal Minergy | South Kalimantan, Indonesia | |
| Semesta Centramas | South Kalimantan, Indonesia | |
| Batavia Prosperindo Energy | East Kalimantan, Indonesia | |
| PNOC Exploration Corporation | Central Kalimantan, Indonesia | |
| Karya Anugrah Kusuma | East Kalimantan, Indonesia | |
| Baradinamika Muda Sukses | East Kalimantan, Indonesia | |
| Kaltim Prima Coal | East Kalimantan, Indonesia | |
| BHP Billiton (Indomet Coal Project) | Central Kalimantan, Indonesia | |
| Asmin Koalindo Tuhup | Central Kalimantan, Indonesia | |
| Adaro Explorasi Indonesia | South Kalimantan, Indonesia | |
| Bumi Barito Mineral | Central Kalimantan, Indonesia | |
| Riau Baraharum | Riau, Sumatra, Indonesia | |
| Golder Associates / Tujuh Bukit Project | Banyuwangi, East Java | |
| Manoor Bulatn Lestari | East Kalimantan, Indonesia | |
| Baradinamika Muda Sukses | East Kalimantan, Indonesia | |
| Mitrabara Adiperdana | East Kalimantan, Indonesia | |
| Prima Mulia Sarana Sejahtera | South Kalimantan, Indonesia | |
| Artha Nusantara Resource | Jambi, Sumatra, Indonesia | |
| Britmindo Mining Services | Sarawak, Malaysia | |
| Adaro Explorasi Indonesia | South Kalimantan, Indonesia | |
| Puslitbang tekMIRA (Centre for Research and Development of Mineral and Coal Technology) | Robertson Geologging equipment sales & support | |
| Badan Pengkajian Penerapan Teknologi (Agency for the assessment and application of Technology) | Robertson Geologging equipment sales & support | |
| AsiaMet Resources / Kalimantan Surya Kencana | Central Kalimantan, Indonesia | |
| Adaro MetCoal – Maruwai Coal / Juloi Coal | Central Kalimantan, Indonesia | |
| Amman Mineral Nusa Tenggara | West Nusa Tenggara | |
| Karya Bumi Prima – Antang Gunung Meratus | South Kalimantan, Indonesia | |
| Kaltim Prima Coal | East Kalimantan, Indonesia | |
| Adaro Jasabara Indonesia – Adaro Indonesia | South Kalimantan, Indonesia | |
| Cosyindo Teknik – Trubaindo Coal Mining | East Kalimantan, Indonesia | |
| Geryndo Utama – Trubaindo Coal Mining | East Kalimantan, Indonesia | |
| Semesta Alam Barito | Central Kalimantan, Indonesia | |
| Orica Mining Services – Asmin Bara Baronang | Central Kalimantan, Indonesia | |
| Qinfa Mining Industri | South Kalimantan, Indonesia | |
| Orica Mining Services – Wahana Baratama | South Kalimantan, Indonesia | |
| Indonesia Carbon Energi – Maruwai Coal | Central Kalimantan, Indonesia | |
| Quantus Consultants Indonesia - Pari Coal | East Kalimantan, Indonesia |