O2 Investment Partners-backed BerlinRosen, a media company, completed the investment in BerlinRosen, a content, data and analytics agency working at the intersection of marketing and communications. Financial terms were not disclosed. "We’re thrilled to be joining BerlinRosen. BerlinRosen shares our vision for how communications is evolving and the key role that storytelling and the ability to measure performance will play moving forward. This partnership will allow us to take our work to the next level," Ben Worthen, Message Lab CEO.