Soilmec lists on its website Iranian drilling company Tahran Co. as a major client for drilling and foundation equipment. (http://soilmec-gulf.com/clients.html)
Soilmec is a large Italy-based international construction company that specializes in below-ground construction. It operates 12 subsidiary companies and has 45 distributors (Company Website). (http://www.soilmec.com/viewdoc.asp?co_id=55)
Soilmec manufactures a wide range of tunneling equipment. The New York Times has reported that Iran is using an underground tunnel network to hide missiles and nuclear facilities. (http://www.nytimes.com/2010/01/06/world/middleeast/06sanctions.html)
Soilmec has a full branch in Tehran which handles "sales, customer care, technological assistance, spare parts, and maintenance." (http://www.soilmec.com/viewdoc.asp?co_id=59&pag=2)