1-Akam Bitumen

2-Alperton

3-Arya Truck Trading co.

4-Asayesh Bam Shargh Sepahan

5-Asia Sang Shekan co

6-Asphalt Kordan

7-Ayegh Hesare Mehran

8-Bam Iran SH

9-Bamgostar e Delijan

10-Behbood Sanat Group

11-Beton Asphalt Machine

12-Chemical Tools

13-Delijan Isolator Industrial Crusher

14-Delijan Momie Company

15-Delijan Part Machine

16-Donyaye Haffary

17-Ehsan Polymer Spadana

18- Engineering& Urban Construction Organization Of Tehran

19- Exir Shargh

20- Fan va toseeh engineering

21-Farzan Shimi

22-Fulad Kar

23-Ghirab Sefiddasht Production co.

24-Habib Sanat

25-Hepco

26-Imen Rah e Gharb

27-Iran Bana Arian

28-Iran Road & Mines Ind co.

29-Isfahan Bitumen&Drum Manufacturing

30-Isogam setareh Shargh

31-Isogum e Isodezh

32-Isogam Golbahar

33-Isogam Pashm Shisheh Shargh Mashad

34-Jey Oil

35-Koupal Poulad

36-Mahan Sanat Kani Engineering co.

37-Mahyar Crusher

38-Mana Sanat

39-Masham

40-Milad Production& Industrial co

41-Narvin Gostar e Parsian

42-Omran Ayegh Shimi

43-Paralkish

44-Pasargad Oil

45-Pedram Industrial Company

46-Pirooz Bame Shargh

47-Rahdar Sanat

48-Rangchi Shimi Trading co

49-Rueen Sath Tabarestan

50-Sang o Kooh

51-Setareye Shargh

52-Sina Tech

53-Tarrahan e Ghir e Novin

54-Technacal Office& Engineer Office Dipl.Ing.Mohammad Hassan Bahardoust

55-Toseye Tejarat Va Sakhteman

56-Transportation Research Institute Ministry Of Road and Transportation

57-Varziran

58-Makadam Shargh

59-Payam-e-Sakhteman&Tasisat

60- Environment Structure Development (S.C.)