The San Francisco startup raised $17.6 million to turn zero-trust plumbing into a developer primitive. Its sharpest lessons survive in open source - including the costly rewrite that finally made the idea click.
Confluent is the data streaming company founded by the original creators of Apache Kafka. Its Data Streaming Platform - anchored by fully managed Confluent Cloud and a self-managed Confluent Platform, plus managed Apache Flink for stream processing - lets organizations connect, process, and govern data in motion across clouds in real time. Used by thousands of enterprises including a large share of the Fortune 500, Confluent went public in 2021 (NASDAQ: CFLT) and in December 2025 agreed to be acquired by IBM in a deal valuing it at roughly $11 billion.