By sector and geography

Global Cleantech 100 by sector
Companies in energy sectors dominate the global list, with 74 of the final 100 focused on energy generation, efficiency, storage and infrastructure. Diminishing oil and gas reserves, fluctuating market prices and rising global demand for power have focused efforts on new, more efficient methods of creating and providing energy, and saving and storing it.

Number of firms by top-level sector:

Energy Generation 37
Energy Efficiency 18
Water & Wastewater 11
Energy Storage 10
Energy Infrastructure 9
Transportation 6
Recycling & Waste 3
Agriculture 2
Air & Environment 2
Manufacturing/Industrial 1
Materials 1

Global Cleantech 100 by geography
More than half (56) of the companies listed on the Global Cleantech 100 are headquartered in North America, while European firms make up a further 36 percent. Five firms are based in Israel and three in India.

Number of firms by region:

North America 56
Europe 36
Israel 5
India 3

Number of firms by country:

USA 55
United Kingdom 13
Germany 10
Israel 5
Sweden 4
France 3
India 3
Denmark 2
Norway 1
Canada 1
Italy 1
Luxembourg 1
Switzerland 1

The list is, both sectorally and geographically, generally reflective of the cleantech innovation landscape today and the cultural heritage of company-building, entrepreneurism, and venture capital.

While China has no companies on the 2009 list, China’s importance and leadership in this area should not be understated, nor the evident rise in entrepreneurism and company-building in that region.