ClearSky, a venture capital firm, led a $15m Series A round in Phylum, an open-source supply chain company, with participation from Atlassian Ventures, SixThirty Ventures, First In and TechOperators. "It is incredibly validating to have ClearSky and Atlassian join our mission to defend the open-source ecosystem so organizations can continue to leverage the benefits of open-source software securely and efficiently," Peter Morgan, Phylum Co-Founder and President.