StorageOS, a leader in cloud native storage management, has closed a $10 million Series B funding round to build on growth, which has seen more than 4,000 customers globally implement its software-defined storage solution. Led by Downing Ventures, existing investors Bain Capital Ventures, Uncorrelated Ventures and MMC Ventures also participated in the round alongside new investor, Chestnut Street Ventures. This brings the total funding raised to date by StorageOS to $20 million.  The company will now invest further in its go-to-market strategy and scale its sales and customer facing technology teams to build its customer base and revenue.