
Cloud9 Esports, Inc., or simply Cloud9 (C9), is an American professional esports company based in Santa Monica, California. The company was originally founded as a professional League of Legends team founded by Jack and Paullie Etienne in May 2013 and was incorporated into Cloud9 Esports, Inc. on September 6, 2016. Cloud9 has received US$78 million in total raised equity via venture capital funding and was ranked the world's second-most valuable esports organization in 2020.

Counter Logic Gaming (CLG) is an American esports organization headquartered in Los Angeles, California. It was founded in April 2010 by George "HotshotGG" Georgallidis and Alexander "Vodoo" Beutel as a League of Legends team, and has since branched out into other games.

Denial Esports was a professional esports organization based in the United States. They were most well known for their Call of Duty team being 2015 world champions, having won the Call of Duty Championship 2015.

Final Boss was a professional esports team that competed in Halo competitions sponsored by Major League Gaming (MLG) and other tournaments. With its most successful lineups consisting of a core of Dan "Ogre 1" Ryan, Tom "Ogre 2" Ryan and Dave "Walshy" Walsh, Final Boss is regarded as one of the best Halo teams of all time due to their numerous tournament victories and MLG National Championships from 2004 to 2010. They also hold the record for the longest consecutive event winning streak, with 8 straight tournament victories from 2005 into 2006.

Flipside Tactics was an esports organization based in the United States, with teams competing in Counter-Strike: Global Offensive, Halo, CrossFire, fighting games, and StarCraft II. The organization formerly had teams competing in NASCAR, Tom Clancy's Rainbow Six Siege, Rocket League, and Dota 2. Former professional football player Ricky Lumpkin is a co-owner of the team.

Renegades is a professional esports organization. They field teams competing in Call of Duty, Counter-Strike: Global Offensive, Fortnite, Overwatch, Super Smash Bros., Rocket League and iRacing. The organization previously had a League of Legends team that qualified for the 2016 North American League of Legends Championship Series (LCS), but it was sold to Team EnVyUs after the owners were banned from NA LCS ownership.

Sentinels is an American esports organization based in Los Angeles, California. The organization was founded as League of Legends team Phoenix1 and competed in the North American League of Legends Championship Series. In June 2018, Phoenix1 rebranded to Sentinels. The company currently fields teams in Fortnite, Valorant, Apex Legends, and Halo.

Str8 Rippin is a professional Halo team in the United States that competes in the Halo Championship Series. Str8 Rippin was first formed in 2005 for Halo 2 on the Major League Gaming (MLG) Pro Circuit. Their most successful period was during the MLG Halo 3 Pro Circuit, when they won several tournaments. Tom "Tsquared" Taylor was their longtime captain and was considered the face of the team for several years.

Winterfox (WFX) was an esports organization with teams competing in Counter-Strike: Global Offensive, Halo and Street Fighter. The team was founded after the Evil Geniuses League of Legends team split from the organization following the creation of a new sponsorship rule for the League of Legends Championship Series, and the team later expanded into other games. Winterfox signed Super Smash Bros. Melee Sheik player DaJuan "Shroomed" Jefferson McDaniel on July 16, 2015. The Winterfox Halo team competes in the Halo Championship Series. Winterfox signed fighting games player Gustavo "801 Strider" Romero to the team on July 15, 2015. In November 2015 Winterfox's CSGO team moved to SteelSeries's headquarters in Chicago, Illinois. Winterfox's League of Legends team competed in the North American League of Legends Championship Series in for the 2015 Spring NA LCS split before being relegated and eventually disbanding.