Hydrolix, a Portland, Ore.-based “streaming data lake” startup that helps companies store and analyze huge volumes of log data, raised $80 million in a Series C round led by QED.

What Hydrolix does: The company stores, compresses, and queries huge volumes of log data — everything that happens in a digital system —  in real time. Fintech, media, and e-commerce companies use log data to detect security threats, debug issues, monitor live streams, and more. The startup is riding tailwinds from cloud, AI, and security applications driving up log data usage.