Ukrainian company Sixa, which has developed an application for access to a high-performance virtual computer in the "cloud," has raised $3.5 million from U.S.-based Tandem Capital fund, as well as the investment companies Horizon Capital and Digital Future.

"Sixa is a very valuable company for Digital Future's portfolio. Fight among investors for the opportunity to finance this startup to a certain extent was aggressive. You be the judge: the project, which boasts rapidly growing sales without the help of marketing, whose customers subscribe for software upgrade," Digital Future partner and founder Oleksiy Vitchenko told Interfax-Ukraine.

The investment company has not disclosed the amount of investment.

Sixa is a service that allows users to obtain their own virtual high-performance computer in the "cloud," using which one can perform the most complicated tasks. The service is available for Windows, Mac OS X, Android. Users pay on an hourly basis for the service.

Sixa focuses primarily on developers, designers and gamers.