Online surveying company Greenfield Online (SRVY) has opened an office in Shanghai.

"Expanding our presence in Asia-Pacific will strengthen our role as the leading provider of global data collection services to the marketing research industry," stated Albert Angrisani, president and CEO of Greenfield Online.

To meet the increasing global demand for Internet survey solutions in Asia-Pacific, Greenfield-Ciao says it began building regional panels in late 2005.