DataStax Inc. has purchased Aurelius, a Seattle-based startup, gaining eight engineers that will enhance the software company's products.

Aurelius, known for flagship product TitanDB, is expected to bring graph database functionality to DataStax—a capability that the Santa Clara, California-based buyer did not previously have.

The tool is currently used by major companies such as Facebook (Nasdaq: FB), Google (Nasdaq: GOOGL) and Inc. (Nasdaq: AMZN).

DataStax has stated that feedback from customers indicated a need to streamline connections between disparate data points as close to real time as possible. Adding Aurelius to DataStax as an "acqui-hire" will help implement this service into sectors that increasingly rely on data, especially product recommendation engines for online retailers. Amazon, for example, can connect  users and suggest other products they might like based on similar purchasing activity of other online shoppers. The technology is also used in social networking, health care and cyber security.

Terms of the transaction have not been disclosed. The deal comes one year after DataStax raised $106 million in venture capital funding. Investors include ClearBridge Investments, Comcast Ventures, Cross Creek Advisors, Draper Fisher Jurvetson, Kleiner Perkins Caufield & Byers,

Lightspeed Venture Partners, PremjiInvest, Scale Venture Partners and Wasatch Advisors.

Aurelius’ clients are Cisco Systems Inc. (Nasdaq: CSCO) and Pearson plc (NYSE: PSO).

By adding Aurelius, DataStax hopes to make graph database functionality more mainstream and available to middle-market companies.

For more coverage in technology M&A, see 12 Important Tech Deals of 2014.

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