News provider TechCrunch said MediaMath's investors in the latest round would be medical device maker Safeguard Scientific and venture capital firms QED, European Founders Fund and SJS.

MediaMath, an advertising technology company, has reportedly extended its series B round.

News provider TechCrunch said MediaMath’s investors in the latest round would be medical device maker Safeguard Scientific and venture capital firms QED, European Founders Fund and SJS.

In a regulatory filing, MediaMath said it had raised $10m out of a planned $15m round.