If corporate sustainability performance is to be made transparent and become an integral part of investment decisions, we need comprehensive, quantitative reporting. What must be recorded is not only the effect that environmental factors have on companies, but also the effect that companies have on the environment. This effect has nothing to do with a company being listed on the stock exchange or not – how a company is financed has no influence on its environmental and social impact. Similarly, company size is often of secondary importance. This is why we are proposing ways to make visible how companies impact society, positively and negatively.