RainStor builds a NewSQL relational database that emphasizes heavy compression to handle very large datasets, claiming up to 40-fold reductions in storage and faster backups. The product was originally positioned for on-premise and cloud data-archiving use cases. In January the company released a version that runs natively on the Apache Hadoop stack (not a connector), enabling compressed data storage in Hadoop while allowing traditional SQL queries alongside map-reduce workflows. RainStor’s technology lets organizations avoid piping data back and forth between systems and preserves Hadoop for data scientists who still want map-reduce. The company was originally called Clearpace and has raised multiple venture rounds to date. Proceeds from the new financing will be used to expand engineering, sales, and marketing teams. RainStor provides infrastructure software for online information preservation. The company is based in San Francisco, CA and also operates offices in Gloucester, UK. RainStor secured $7.5m in a Series B funding round from Storm Ventures and Informatica. Existing investors Doughty Hanson Technology Ventures and The Dow Chemical Company also participated in the round. As part of the financing, Tim Danford, managing director at Storm Ventures, will join RainStor’s board of directors. The company said it will use the funds to expand into new markets, grow its partner base, and invest in product development and R&D.

Total raised

$20M

Funding rounds

2

Latest round

Series C

Latest activity

Oct 2012