Nokia, which invested at a $30-35m valuation, was among the exiting backers as the adtech company was bought by digital media company RNTS.

Digital media company RNTS Media agreed on Tuesday to acquire Germany-based advertising technology provider Fyber for a price pegged at $190m in cash and stock by VentureBeat.

Formerly known as SponsorPay, Fyber produces technology that enables app developers to implement monetisation through ads. It will continue as an independent subsidiary of RNTS, and plans to hire another 60 people by the end of 2014 as it seeks to build its mobile supply-side platform.

Nokia Growth Partners, the corporate venturing subsidiary…