1. Adhi Karya Tbk.
2. Asahimas, PT
3. Cabot
4. Calmarine, PT
5.
6. Decorient
7. Dextam Contractor, PT
8.
9. Environ
10. Gunungbayan Pratamacoal
11. Hazama Corporation
12. INCO Tbk.
13. Indo Nakano
14. Indo Straits
15. Jaya CM, PT
16. JGC Corporation
17. JICA
18. Kajima
19.
20. Komatsu
21. Mc Connell Dowell
22. Meindo
23. Mitsubishi Heavy Industries
24.
25. Obayashi Corporation
26. Pacific Oil and Gas
27. Pakuwon Group
28.
29. Perencana Djaya, PT
30. Petrosea
31. Pacific Consultant International
32. PP Taisei
33. Pembangunan Ancol, PT
34. Ratu Agung Sayang, PT
35. Rinkai Construction
36. Samudra
37.
38. Sempec, PT
39. Shimizu Corporation
40. SMEC International
41. Sumicon Utama, PT
42. Sweet Indo Lampung, PT
43. Taiyo Sinar Raya Teknik
44. Takenaka
45. Tanjung Enim Lestari
46. Tata Mulia
47. Technip
48. TOA Corporation
49. Toyo Engineering Corporation
50. Trakindo
51. TTW
52. Yachio Engineering