GigaOm Earth2Tech’s 101 Cleantech Startups provides a map showing cleantech hot spots around the globe. The different sectors such as solar, energy storage, biofuels and electric vehicles are all represented by a logo, and each pin on the map has all of the vital stats for each startup (founding year, investors, technology, etc.).
For more information, visit GigaOm's Earth2Tech website.
View the map here.