Five different fossil fuel screens are used to flag investments

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We also search for investments in companies that are leading the way with solutions for the transition to clean energy.


The Clean200 are the largest 200 public companies ranked by green energy revenues. The dataset is developed by multiplying a company’s most recent year-end revenues by its clean revenue estimate, primarily sourced from Corporate Knights Research supplemented by FactSet, Bloomberg BNEF, and FTSE Russell data. In order to be eligible, a company must have USD revenue of at least $1 billion (most recent available fiscal year-end data) and earn more than 10% of total revenues from clean sources, which extends beyond energy efficiency, green energy, and zero emission and hybrid vehicles. We include banks that are financing the low-carbon solutions; real estate companies leading the way on low-carbon buildings; forestry companies protecting carbon sinks; responsible miners of critical materials for the low carbon economy; food and apparel companies with products that are primarily made of raw materials with a significantly lower carbon footprint; and energy-hungry information and communications technology companies that are leading the way on renewable energy. The Clean200 was created by As You Sow and Corporate Knights.