Mullvad is a very well-established and respected VPN brand. Founded in 2009 in Sweden (one of the most privacy-centric countries in Europe) it is widely regarded as one of the best VPNs, and is aimed at those with a "privacy above all else" mindset.
It comes as no surprise that Mullvad’s ultimate owner, Amagicom AB, stands for (in their words) "free communication".