Southern Cross Venture Partners and Correlation Ventures have joined as new investors in the syndicate that included InterWest Partners, August Capital and Canaan Partners.
Southern Cross was an investor in EvoStor, an Australia-based developer of storage solutions for the VMware market, which Virsto acquired earlier this year.
The company intends to use the additional funding, which brings the total amount raised in the round to $17m, to accelerate growth, broaden industry partnerships and expand hiring to support continued innovation in products, as well as enter the VMware market this year.
Founded in 2007 and led by CEO Mark Davis, Virsto has developed a multi-platform VM-centric storage hypervisor designed to allow enterprise, private and public cloud customers to increase performance and management flexibility while lowering storage costs.
The company, which partners with Citrix, Microsoft, and VMware, has satellite development operations in Melbourne, Australia and Minsk, Belarus.