Digitalization has brought significant changes in society, thereby impacting marketing strategies as well. While digital marketing has taken a significant leap in Business-To-Consumer (B2C) companies, the shift has been somewhat less pronounced in the Business-To-Business (B2B) sector. However, B2B entities have been increasingly gravitating towards modern marketing practices, specifically digital marketing, in recent years. This bachelor's thesis investigated the significance of digital marketing in B2B companies and the tools instrumental in achieving its benefits. The thesis was conducted through a literature review, revealing that digital marketing holds substantial advantages for B2B firms. Examples include brand awareness, customer engagement, acquisition of new clients, and the improvement of existing customer relationships. To attain these, B2B enterprises employ digital marketing tools such as search engine marketing, social media marketing, email marketing, and content marketing. The study found that digital marketing techniques are notably more cost-effective than traditional marketing elements like radio or print advertising. Furthermore, digital marketing tools offer other advantages, such as easy measurability. Various social media platforms provide direct metrics, indicating how many individuals have seen an ad or how much engagement it has received. Digital marketing should not replace traditional marketing but rather work alongside it in tandem.