Zerto, rapidly becoming the disaster recovery standard in virtualized data centers for both enterprises and cloud service providers, today announced it has closed a $13 million round of Series C financing. The round was led by RTP Ventures, an affiliate of ru-Net Holdings, with strong support from existing investors Battery Ventures, Greylock IL and U.S. Venture Partners. Murat Bicer, managing director of RTP Ventures, will join the company`s board of directors.