The Fourth Founding was the fourth mass expansion wave of the 4chan Cup, represented by the teams founded after the 2012 4chan Spring Babby Cup. These new teams brought the total number of clubs to an even 48, allowing for stable promotion and relegation between the Babbies and Elite tournaments. The Fourth Founding teams would first compete in the 2012 4chan Autumn Babby Cup.
- As of the conclusion of the 2016 4chan Autumn Babby Cup, 2 different Fourth Founding teams have won cups (2 Elite Cups and 1 Babby), with /wg/ having won two cups; they are one of only three teams in the 4chan Cup to have won two cups.
- As of the conclusion of the 2016 4chan Spring Babby Cup, the Fourth Founding teams have a combined total of 11 "medal" finishes; 3 first place finishes, 3 second place finishes, and 5 third place finishes.
- As of the conclusion of the 2016 4chan Spring Babby Cup, /wg/ have the highest efficiency out of this Founding at 52.86%, while /c/ have the lowest at 26%.