The mobile app advertising startup was bought by Twitter for sum reported as "around $50m", giving Google Ventures an exit just over a year after its seed investment.

Microblogging platform Twitter has acquired US-based advertising technology company Namo Media, the companies revealed in blog posts yesterday and on Wednesday, enabling Google Ventures to exit.

Although the price has not officially been disclosed, technology finance news source, TechCrunch has reported, citing “reliable sources”, that Namo was bought for about $50m.

Google Ventures, the corporate venturing arm of internet company Google, led a $1.9m seed round raised by Namo in March 2013 that also featured Andreessen Horowitz, Betaworks, Google Ventures,…