Companies dealing with large amounts of data. A list with some companies using Apache Kafka can be found here: <a href="https:&#x2F;&#x2F;cwiki.apache.org&#x2F;confluence&#x2F;display&#x2F;KAFKA&#x2F;Powered+By" rel="nofollow">https:&#x2F;&#x2F;cwiki.apache.org&#x2F;confluence&#x2F;display&#x2F;KAFKA&#x2F;Powered+By</a>