OIL & GAS INDUSTRIES :
- Pertamina
- Total Indonesie
- Chevron
- British Petroleum
- Conoco Philips
- Arun NGL
- Badak NGL
- Kodeco
- PetroChina
- Medco
- VICO
- Amerada Hess
FERTILIZIER INDUSTRIES :
- PT Pupuk Kujang
- PT Pupuk Sriwijaya
- PT Pupuk Iskandar Muda
- PT Pupuk Kalimantan Timur
- PT Petrokimia Gresik, etc.
PETROCHEM / CHEMICAL PLANTS :
- PT Chandra Asri
- PT Asahimas Subentra Chemical
- PT Tripolyta
- PT Yasa Ganesa Pura
- PT Unggul Indah Corporation
- PT Sulfindo
- PT Cabot Indonesia
- PT BP Amoco
- PT Styrine Monomer Indonesia
- PT Trans Pacific Petrochem Indonesia
- PT Mitsubishi Chemical, etc.
SUGAR MILLS :
- PTP XIV, XV, XVI, XX, XXI, XXII, XXV, XXXII
- Sweet Indo Lampung
- Gula Putih Mataram, etc.
POWER STATIONS :
- Muara Karang Sector
- Priok Sector
- Suralaya Sector
- Semarang Sector
- Gresik Sector
- Paiton Sector
- Muara Tawar Sector
- Belawan Sector, etc.
PULP & PAPER INDUSTRIES :
- PT Kertas Bekasi Tegu
- PT Indah Kiat Pulp & Paper
- PT Sinar Dunia Makmur
- Pabrik Kertas Leces
- PT Tjiwi Kimia
- PT Surya Pamenang
- PT Aspek Paper
- PT Riau Andalan Pulp & Paper
- PT Pindo Deli
- PT Ekamas Fortune
- PT Kiani Kertas, etc.
ENGINEERING PROCUREMENT CONTRACTOR :
- PT Intikarya Persada Teknik
- PT Rekayasa Indonesia
- PT Toyo Engineering
- PT Mc Dermott
- PT Tripatra Engineering
- PT Wijaya Karya
- PT JGC
- PT Truba Jaya, etc.
TEXTILE & YARN INDUSTRIES :
- PT Texmaco
- PT Indhobarat Rayon
- PT Kumafibre
- PT Indorama Synthetics
- PT TIFICO Fiber Indonesia Tbk, etc
SMELTER :
- PT Krakatau Steel
- PT Indonesia Asahan Alumunium
- PT INCO
- PT Smelting Indonesia, etc
OTHER GENERAL INDUSTRIES :
- PT Semen Tuban, Tonasa, Padang
- PT Semen Andalas
- PT Indocement Group
- PT Holcim Group
- PT Ajinomoto
- PT Indo Miwon
- PT Miwon Surabaya
- PT Sasa Indonesia
- Cheil Samsung Indonesia Co., etc
