OSS Suppressor sent out a press release saying its suppressor beat the traditional baffle suppressor. It was tested by a US Government agency in January 2016.
Edit: SureFire has responded to this video. It seems like there are some discrepancies and questionable claim
http://soldiersystems.net/2016/06/22/surefire-responds-to-competitor-suppressor-video/
From: The Tactical Wire, Soldier Systems Daily