The two account wins come less then two weeks after OMD was reported to have lost the $600 million Gillette Co. global media account.
OMD won the Siemens business in a final shootout against Aegis Group's Carat, according to sources. Siemens executives did not respond to requests for an interview. Executives at OMD and Carat declined to comment.
Siemens previous media
In the Sony review, OMD faced off against Zenith Optimedia Group, which is owned jointly by Publicis Groupe and Cordiant Communications Group, and WPP Group's MindShare, which last month picked up Gillette's $600 million global media business, part of which had been with OMD.
A Sony spokesman declined to comment.
OMD was the incumbent for Sony Corp.'s consumer electronics division, while Zenith handled the Columbia TriStar theatrical account. MindShare will continue to service the marketer's computer entertainment business in Europe, including that for the PlayStation video game.
In February, Sony Corp. of America awarded the North American portion of its media business for Sony Electronics, Sony Music Entertainment, Sony Pictures Entertainment and Sony Canada, worth approximately $600 million, to Interpublic Group of Cos.' Universal McCann, New York.
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Dagmar Mussey contributed to this report.