There also are/were the: Sons of Ben Bearfight Brigade Tammany Saints The IllegitimateS The Bridge Crew The Corner Creeps El Bandito's Battalion Did TS disband? My sources say "yes". They haven't been active since 2012, if you look at their website and twitter feed. And, regardless what you've heard, the Nexus of Negativity, Platoon of Positivity, and Flip Flop Flotilla are not officially recognized SGs.
Although the Just Happy to Be Here Heroes are making a big push to be allowed to hold the players hands when they walk onto the field.