Siemens is interested in bidding for Greek rolling stock operating company ROSCO, a source close to the talks told Reuters.
Greece's privatizations agency said three companies had submitted expressions of interest to buy 100% of ROSCO, the news agency said.
The other two potential bidders were French power and transport engineering firm Alstom together with Damco Energy, and Greek building group GEK Terna in cooperation with Russian Railways RZD, Reuters reported, quoting an official speaking on condition of anonymity.