This paper investigates the topic of reporting on non-financial data of companies and their credibility and transparency towards stakeholders. A review of recent literature examines the level of comprehensibility of the current guidelines for compiling reports as well as the usefulness of the new directive that seeks to introduce a single access point that enables digital access to all non-financial company data. Non-financial reports have long ceased to be only a legal obligation of certain business entities. Today, they represent one of the main sources through which interested stakeholders obtain information about purchasing or investing in individual companies, therefore, the accuracy of information is necessary in the process of making certain strategic decisions. With stakeholders' growing interest in corporate social responsibility and investments in more environmentally friendly business solutions, certain companies see the usefulness of green advertising, and thus the number of Greenwashing examples that companies use to achieve their own benefit on the account of its stakeholders is also increasing. The aim of this paper is to analyse the importance of the transparency of non-financial reporting for stakeholders and to show the usefulness of digital tools in combating unethical marketing activities such as Greenwashing. The company's key challenges, proposals for further improved reporting, and successful practices for preventing unethical behavior are presented on the examples of companies: Ericsson Nikola Tesla, A1 Hrvatska, and Hrvatski Telekom.