Mobile app marketing optimization service Liftoff says Blackstone Group has made a majority investment in the company; source: the amount is close to $400M Laura Kreutzer / Wall Street Journal : Wall Street Journal 2020-12-23 Laura Kreutzer Blackstone Group, Liftoff, Mobile, Wall Street Journal, Laura Kreutzer Related Coverage Blackstone to Invest in Liftoff to Help Fuel Future Growth Business Wire Blackstone will invest close to $400 million in mobile app marketer Liftoff VentureBeat Mobile app marketing specialist Liftoff secures backing from Blackstone Pocket Gamer.biz Blackstone To Invest $400 Million In Ad-Tech Startup Liftoff To Fuel Mobile Advertising Growth Forbes