[1] In 2000, the company released the first commercially available operating system-level virtualization container technology.

In 2003, SWsoft acquired the makers of Confixx and Plesk web hosting products: Plesk Server Administration (PSA) control panel and Confixx Professional hosting software.

[2] Virtuozzo was the core enabling technology behind SWsoft's HSP Complete solution.

In 2005, the company open-sourced its operating system-level virtualization technology as OpenVZ.

[8] Virtuozzo is a contributor to other open-source projects, including the Linux kernel, libvirt, KVM, Docker, QEMU, LXC, runc/libcontainer and Libct.