Here are the name of some companies that have BECafzar in their vendor list :

1.    Manufacturing Support and Procurement Kala Nafte Tehran.
2.    National Iranian South Oil Company
3.    Iranian Central Oil Fields Company
4.    Iranian Offshore Oil Company (IOOC)
5.    Petroleum Engineering and Development company
6.     National  Iranian Oil Refining and Distribution Company ( NIORDC).
7.    Iranian Oil Pipeline and Telecommunication Company
8.    National Iranian Oil Engineering
9.    Oil Refining Company( Tehran, Isfahan,Abadan)
10.   National Petrochemical Company ( N.P.C )
11.    Supplying Petrochemical industry and Engineering Company (SPEC)
12.    Iranian Gas Engineering and Development Company
13.    Iranian Power Development Company (IPDC)
14.    Iranian Oil Terminal Company ( IOTC)
15.    Iranian power plant project management (MAPNA) , MECO, Development 1.2.3