, a startup that develops the infrastructure to power key features in real-time applications and devices covering chat, tracking, and internet of things (IoT), has raised $23 million in a series D round of funding from Hewlett Packard Enterprise (HPE), Relay Ventures, Sapphire Ventures, Scale Venture Partners, Cisco Investments, Bosch, and Ericsson.

Founded in 2010, PubNub touts its “data stream network,” constituting APIs and dozens of SDKs, that helps third-party applications such as Peloton, Atlassian, Athenahealth, Gojek, JustEat, and Gett ensure their real-time services work as promised with minimal delay. The San Francisco-based company claims that it delivers twice as many messages each day as Twitter, Snapchat, and the global SMS network combined.

PubNub is one of a number of companies that work to help

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