1. PT. Ciriajasa Engineering Consultans
2. PT. Cipta Multi Kreasi
3. PT. Bukit Asam Tbk
4. PT. Cakrabuana Consultants
5. PT. Unisystem Utama
6. PT. Infratama Yakti
7. PT. Sehat Pratama Sejati
8. PT. Lembaga Teknologi
Universitas Indonesia
9. PT. Aria Graha
10. PT. Adicitra Mulyatama

11. PT. Mitra Setia Arimayasa
12. Lembaga Bangun Desa Sejahtera
13. PT. Connusa Energindo
14. PT. Bina Karya
15. PT. Perancang Adhinusa
16. PT. Multi Karadiguna Jasa
17. PT. Virama Karya
18. PT. Yodya Karya
19. PT. Indra Karya
20. PT. Sucofindo
21. PT. Sucofindo Advisory Utama

22. PT. Gebe Konsulindo
23. PT. Bhawana Prasasta
24. PT. Suwanda Karya Mandiri
25. PT. Teknika Cipta Konsultan
26. PT. Teraga Olahrakayasa
27. PT. Tabar Pratama Consultant
28. PT. Mega Trustlink
29. PT. Rinjani Jaya Konsulindo
30. PT. Intimulya Multikencana
31. PT. Alles Klar Prima
32. PT. Cipta Sanita Mandiri

33. PT. Nusa Tiara
34. PT. Rexcons Indonesia
35. FTI Consulting Philippines Inc.
(Philippines)
36. CRISIL Risk & Infrastructure Solutions
Ltd. (india)
37. AECOM Asia Company Limited
(Hongkong)
38. Renardet S.A. (Switzerland)
39. SGI Studio Galli Ingegneria S.R.L. (Italy)