Mirantis, one of the startups that sell distributions of OpenStack open-source cloud software, has capped off a seriously big Series B funding round totaling $100 million. The news from the startup, announced today in a statement, provides more proof that OpenStack could play a significant role in IT.

Mirantis Inc., a provider of cloud-computing software and services, raised $100 million in financing, valuing the startup at as much as $800 million, people with knowledge of the matter said. The final valuation will depend on whether the startup achieves certain business goals, said the people, who asked not to be identified because the numbers aren’t public. The investment lays the groundwork for an initial public offering in 2016 and gives Mirantis the resources to build a company similar in scale to VMware Inc., which also provides cloud-computing tools, Adrian Ionel, Mirantis’s Chief Executive Officer, said in an interview.