Sentry

Sentry is an open-source platform for workflow productivity, aggregating data from errors and crashes across the stack in real time. The company's tool shows every crash in stack as it happens, with the details needed to prioritize and identify it, as well as offers insight into deployments and information to reproduce and fix crashes,enabling users to see which errors are doing the most harm to their business and helps them to understand how issues affect their bottom line.

Total funds raised: over $66 million