The world is a drastically different place than before the start of the pandemic. Some of the biggest stock winners have been SaaS stocks, which surged in popularity during 2020. But what does 2021 hold for software-as-a-service companies? And how sustainable is SaaS growth on a sector-by-sector basis?

In this article, we use Similarweb's digital alternative data to take a deep dive into how a changing client concentration might alter the SaaS top-line model and we uncover a few surprising trends.