Siemens AG has been named once again to the prestigious Dow Jones Sustainability World Index (DJSI), capturing the No. 1 spot in the sector Diversified Industrials, which also includes ITT, General Electric and Toshiba.

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Last month, Siemens was awarded the number one spot on the Dow Jones World Sustainability Index.

FORBES: Obama Administration Banking On Next-Generation Nukes

Recognized for its industry-leading performance across a range of economic, environmental and social criteria, Samsung Electronics was named the world's most sustainable technology company in the 2011 Dow Jones Sustainability Index.

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