The ESG is a rating that companies receive for sustainability on the basis of the company value for investors. In other words, sustainability is a factor that determines to a large extent whether or not they invest money in a company. ESG stands for Environmental, Social and Governance. In plain language: make sure that your company contributes to the environment and operates in an environmentally friendly manner (Environment), that you treat your human capital with care (Social) and that you manage your organisation in a decent manner (Governance).