Ivko metal najznacajnije reference:

• - RTB BOR GRUPA DOO BOR
• - IRM INSTITUT ZA RUDARSTVO I METALURGIJU BOR
• - INTERNACIONAL DRILLING SERVICES DOO BOR
• - S & V DRILLING MINE SERVICES PIROT
• - OREKAT DRILLING DOO
• - AVALA RESOURCES DOO BEOGRAD
• - CAPITAL DRILLING DOO BEOGRAD
• - ZIJIN RAKITA EXPLORATION DOO
• - JUGO-KAOLIN DOO BEOGRAD
• - TRAYAL KORPORACIJA A.D. KRUŠEVAC
• - GRAD BOR - ODELJENJE ZA URBANIZAM
• - TILVA DOO BEOGRAD
• - MONTENEGRO DRILLING COMPANY
• - GEOPS BALKAN DRILLING SERVICES DOO BOR
• - SERBIA ZIJIN BOR COPPER DOO BOR
• - MESSER TEHNOGAS A.D. BEOGRAD
• - PHILIP MORIS INTERNATIONAL - NIŠ