Team SiNister

 is a North American esports organization founded by YouTuber and Twitch streamer Priest in 2012.

History
Team SiNister started in 2012 as an esports organization with teams focused on CS:GO and Call of Duty. The Call Of Duty team went on to get bought out by Ghost Gaming. As Priests YouTube blew up after the release of Rainbow Six Siege, he decided to fully embrace the Rainbow Six Siege scene by supporting teams within the Siege Community. The organization started by supporting Xbox comp teams, then moved to PC Challenger League teams, including a team for Dream Hack Austin and United States Nationals. The team went on to build an underage team for up and coming competitive players and an all female roster to support women competitive gamers. Eventually the organization acquired the ex-Avant roster, becoming the only organization in Rainbow Six Siege with a female Pro League player.

Interviews
https://twitter.com/TeamSiNisterGG/status/1141461535140614144