The Deutsche Bank NASDAQ OMX Clean Tech Index (DBCC) is a representation of the global clean tech industry, covering clean energy, energy efficiency, transport, waste management and water. It was launched February 10, 2010 as a collaboration between DB Climate Change Advisors (DBCCA), a member of the Deutsche Bank Group, and NASDAQ OMX.

The Cleantech Index (CTIUS) is a modified equal-dollar weighted index of the leading cleantech companies worldwide from a broad range of industry sectors. "Cleantech" is defined as knowledge-based products and services that improve operational performance, productivity or efficiency; while reducing costs, resource and energy consumption, waste or pollution. The Cleantech index was established with a base value of 500.00, at market close, December 31, 1999. The Index was created by and is a trademark of Cleantech Indices LLC.