Confluent

Confluent was founded by the original creators of Apache Kafka (which they built while working at LinkedIn). While Hadoop and Snowflake focus on "Data at Rest" (analyzing massive data after it has been saved to a database), Confluent focuses entirely on "Data in Motion" (Data Streaming). If you request an Uber, the system cannot wait 24 hours to run a batch report to find you a driver. The data must be processed in literal milliseconds. Confluent acts as the central nervous system for these massive, real-time events. It ingests millions of data points per second (GPS coordinates, credit card swipes, IoT sensor readings) and instantly routes that data to the correct microservices before the data is ever saved to a hard drive. While Apache Kafka is free and open-source, it is notoriously brutal to manage. Confluent provides Kafka as a fully managed, incredibly robust enterprise SaaS platform. It handles the terrifying complexity of replicating data across different global AWS zones to ensure that if a data center burns down, the massive streams of financial data are not interrupted for a single millisecond.