Privately held server automation and virtualization software company SWSoft developed software for running data centers, particularly for web-hosting services companies and application service providers. Their Virtuozzo product was an early system-level server virtualization solution, and in 2003 they bought Plesk, a commercial web hosting platform. SWsoft's acquisition of Parallels was more or less kept under wraps until January 2004, two years before Parallels became mainstream. In 2004 SWsoft acquired Parallels, Inc. and Parallels Workstation for Windows and Linux 2.0 was released, with Parallels Desktop for Mac following in mid 2006. Later the same year the corporate headquarters moved from Herndon, Virginia to Renton, Washington. At Apple's Worldwide Developers Conference 2007 in San Francisco, California, Parallels announced and demonstrated its upcoming Parallels Server for Mac. Parallels Server for Mac will reportedly allow IT managers to run multiple server operating systems on a single Mac Xserve. In 2007 the German company Netsys GmbH sued Parallels' German distributor Avanquest for copyright violation, then Parallels Server for Mac was announced at WWDC - and later Parallels Technology Network. In 2008 SWsoft merged into Parallels to become one company under the Parallels branding which then acquired ModernGigabyte, LLC. Parallels Server for Mac was launched in June then in September Parallels Desktop 4 for Windows and Linux, a rename of Parallels Workstation for the 4.0 release, - and Parallels Desktop 4.0 for Mac later that year. From the next version, 6.0, the Windows and Linux software became known as Parallels Workstation again. Over the next three years the company launched Parallels Desktop 5 for Mac, Parallels Desktop 6 for Mac, Parallels Server for Mac 4.0 Mac mini Edition, Parallels Transporter, Parallels Workstation 6 Extreme, Parallels Desktop 7 for Mac, Parallels Mobile for iOS - and Parallels Workstation 6. During 2012, 2013 and 2014, the company discontinued Parallels Server for Mac, Windows and Linux, launched Parallels Desktop 8 for Mac and Mac Management for Microsoft System Center Configuration Manager. and released Parallels Desktop 10 for Mac. Parallels acquired 2X Software in February 2015, rebranded their service provider business to Odin - later selling the Odin Service Automation Platform to Ingram Micro. They also released for Microsoft SCCM and Parallels Desktop 11 for Mac. In 2017, Virtuozzo and Plesk, two products from the pre-Parallels history of SWsoft, were spun out. In December 2018, Corel announced that it had acquired .
