- PT, Optima Sumber Energy
- PT. United Equipment Indonesia
- PT. CT Advance Technology
- PT. Paradise Perkasa
- PT. Trimitra Wahana Sukses
- PT. Sentral Energy Mandiri
- PT. Linda Hanta Wijaya
- PT. Daeshin Flange Fitting I
- PT. Kobexindo Tractor
- PT. Adikons Industri Perkasa
- PT. TT Metals Indonesia
- PT. Hexindo Adiperkasa Tbk
- PT. Multicrane Perkasa
- PT. Posmi Steel Perkasa
- PT. Mitra Galpetri
- PT. Posco Indonesia
- PT. Dantosan Presocon perkasa
- PT. Cougar Drilling Solutions
- PT. Andalan Fluid Sistem
- PT. Papajaya Agung
- PT. Hanwa Steel Service Indonesia
- PT. Indojapan Steel Center
- PT. Iron Wire Works Indonesia
- PT. Duta Nichirindo Pratama
- PT. Magna Industry and Tyres
- PT. Andaru Sinamatra
- PT. Andaru Stell One
- PT. Steel Force Indonesia
- PT. Sinar Jaya Prima
- PT. Petromas Kencana
- PT. Saga Teknindo Sejati
- PT. Damai Makmur Abadi
- PT. Cahaya Bening
- PT. Delpi Indonesia
- PT. Hokkindo Jaya Mandiri
- PT. Jayakarta Global Pratama
- PT. Pancar Buana Terang
- PT. Guna Coalindo
- PT. Future Star International
- PT. Punia Nathania Sejahtera
- PT. Contromatic Prima
- PT. Atria Prima Indonesia
- PT. Bina Trading Indonesia
- PT. YHI indonesia
- PT. Anugerah Jaya Abadi
- PT. Halysafe Indonesia
- PT, Tinggi Perkasa
- PT. Anugrah Arta Agung
- PT. Cahaya Nusantara Cipta
- CV. Perkasa Global Mandiri
- PT. Obetnego Niaga Persada
- PT. Clariant Indonesia
- PT. Batas Nusa Berkembang
- PT. Lusail Mulia Mas
- PT. Tiga jaya
- PT. Suggo Metal Cemerlang
- PT. Schutz Container System Indonesia
- PT. Steel Pipe Industri of Indonesia Tbk
- PT, Indoturbine
- PT. Adiperkasa Ekabakti Industry
- PT. Mantari Baja Prima Utama
