The source is here, with the raw data linked at the bottom of the page. http://www.worldstartupwiki.org/page/Internet_Hall_Of_Fame http://www.worldstartupwiki.

The source is here, with the raw data linked at the bottom of the page. http://www.worldstartupwiki.org/page/Internet_Hall_Of_Fame http://www.worldstartupwiki.org/page/Internet_Hall_Of_Fame Also answers the question I had about how they figured out the valuation of non-public companies. > Valuation data comes from: stock market data (highest point in the history of the company was selected), acquisition value, valuation at the latest round of investment, or, as a last resort, a guesstimate based on revenues and industry.