Plume, startup improving WiFi experience, raises $300 million mostly from SoftBank

A handout photo shows an illustration of Plume on a mobile device. The Silicon Valley based startup's technology helps improve WiFi experiences at home and can offer services such as parental control and Cybersecurity. Courtesy of Plume/Handout via REUTERS

(Reuters) - Plume, a Silicon Valley-based startup aiming to give consumers a better WiFi experience, on Tuesday said it raised $300 million mostly from SoftBank Group Corp Vision Fund 2, and is now valued at $2.6 billion.

The latest funding round comes only eight months after Plume raised $270 million. It has roughly doubled its valuation since then.