He added that reopening of the Iranian market is a unique opportunity for business, which will be beneficial to both nations.
Monti said that 57 Italian oil and gas companies active in in the fields of engineering, equipment, refinery and extraction are present in Iran for investment.
He said that Italy is advanced in different industries such as meat, dairy, grain and sugar as well as packaging industry related to foodstuff.
Monti underlined that Italian companies producing food products are ready for direct investment in Iran and reciprocally Italy welcomes presence of Iranian firms in Italian market.
A 310-man Italian delegation representing 197 firms active in the fields of agriculture, transportation, oil, gas, construction and infrastructure arrived in Tehran on Monday.
Iran and Italy signed four memoranda of understanding on mutual cooperation here on Tuesday morning.