For 30 years, Blackstone Group LP has spent billions scooping up portfolio companies across a wide variety of sectors. But until now, digital media marketing wasn't one of them.
As of Tuesday, the New York-based firm is backing Ai Media Group, an eight year-old company that has become known for its unique brand of search engine marketing. The company reports its findings back to clients in real time, with the idea that it can drive sales and leads, aside from tracking clicks.
Other than Blackstone's...