RightScale, a US-based provider of enterprise cloud management services, has raised $15.6m in its series D round, according to a regulatory filing.
RightScale, which was a partner in IBM Cloud Service Provider Platform of hardware, software and services to help phone operators deliver virtual computing services, previously raised $25m in September 2010’s series C round from a consortium including Presidio Ventures, the corporate venturing unit of Japan-based conglomerate Sumitomo.
RightScale’s other investors in the C round included venture capital…
