QuestDB

QuestDB is an open-source SQL database designed to process time-series data, faster. In practice that means storing and querying application data reliably.

The natural audience is developers and data teams. Related areas on their profile: Analytics, Big Data, Database, Internet of Things and Open Source. As a very small product team themselves (1 to 10 people), they tend to serve customers of a similar scale best. You will probably talk to the people who build it, which is great until you need 24/7 support.

QuestDB is based in San Francisco, California. More on questdb.io.

Things worth asking about: managed options, backups, and scaling costs. Get the renewal terms in writing before the first invoice.

The facts above come from public company records. The score will come from people like you. Used QuestDB? Rate it.