[sphix0r]

We built our own tool at Datastreams (https://datastreams.io) to collect data. We currently collect several thousands of events per second, mainly web data.

Events are mainly streamed to one of the following: Cloud buckets(S3, etc), HDFS, SQL-db or Cassandra.

Most clients use one of the following visualization tools: PowerBI, Qlik or Tableau.

Our clients are mid to enterprise size.

Disclaimer: I work at Datastreams