|Founded by:||Al Capone (de facto)|
|Territory:||Chicago, Nevada, Los Angeles|
|Criminal activities:||Racketeering, illegal gambling, skimming, bootlegging, drug trafficking, contract killing, extortion, murder, loan sharking, money laundering, conspiracy, burglary, prostitution, hijacking, fencing, larceny, bookmaking, assault, tax evasion, coercion, gun running, bribery|
|Allies:||Coniglio, Forlenza, Falcone, Tramonti and Drago crime families|
The Outfit was initially kept out of the Commission, due to their reputation for violence. However, the Five Families in New York had agreed that everything west of Chicago belonged to Chicago, with the exception of Las Vegas, which was declared an open city.
In 1932, when Capone was arrested for tax evasion, the business was taken over by Frank Nitti, who continued to rule with a violent hand until, instead of facing a jail sentence, he shot himself in the head in 1943. It was rumored that during Frank Nitti's reign Paul Ricca was the one calling the shots and that Frank Nitti was only a figurehead.
When Ricca was on parole restrictions, Louie Russo replaced him as boss, who later managed to gain a seat on the Commission. After Russo was killed in an incident with Tom Hagen, he was succeeded by John Villone, who restored ties with the Corleone family.
In the 1950s, the Outfit invested heavily in Las Vegas by using the Teamsters' pension fund and made millions of dollars by skimming casinos over the course of several decades.
- Al Capone
- Frank Nitti
- Paul Ricca
- Louie Russo
- Albert Volpe
- John Villone
- Frank Falcone
- Willy Russo
- Benny Amato
- Joey Daniello
- 1925-1932 — Al Capone
- 1932-1943 — Frank Nitti/Paul Ricca
- 1943-1947 — Paul Ricca
- 1947-1961 — Louie Russo
- 1961-197? — John Villone
- 197?-1979 — Albert Volpe