Tieco  number of employers are:

 

National Iranian Drilling Company                 Manufacturing Support and Procurement Kala Naft Tehran

 

North Drilling Company                                  Company Pdks

 

Sadra Company                                                IOEC

 

Khark Petrochemical                                       Arvand Petrochemical

 

Poyesh Petrochemical                                    Iran Zinc Mines Development Company (LLP)

 

Company Sabvn                                              Company Valsr

 

Sugarcane Development Company              Iran International Engineering Company (AirTAC)

 

Ardebil Cement                                              Karoon Cement

 

Bushehr, Khuzestan                                     Cement Cement

 

New Gulf Cement                                        Industry Firouzkouh Cement

 

Saveh cement industry                                Industry Hegmatan Cement

 

Tehran Cement                                            Cement Delijan Cement

 

Hormozgan Cement                                    Cement Saman West Cement

 

Venezuela cement                                       Sardar Cement

 

Ilam Cement                                                Lamerd Cement