|In the aftermath of the official end of the Rebellion, the axis of power in Republic City shifted extremely. With the newly found government for the capital city and the United Republic of Nations, these leaders gained immeasurable power in the city and even the world. Just as well, the businessmen who funded the government gained access to similar power; even beyond what they already had. Many used this power for good while others did not.
Some decided they would abuse this power for their own means. Some wanted money, others fame and a sad few simply wanted more power. For the most part it was all the same fate for each of them. They were found out and ousted from their area of power. New people were put in to replace them shortly after. Unfortunately, the cycle continued. Power corrupts and absolute power corrupts absolutely. When it seemed the cycle wouldn't end, the corrupt minds began to think more cautiously.
Seeing the downfall of others like them, they decided to join together in order to space out any suspicion people may have had on them. It was one thing if some criminal act they ordered to have done benefited only them, making them the clear target for suspicion. It was an entirely other beast when they chose to order acts which benefited most or all of them. Even if the authorities knew who all it was likely to be, there was no way they could pinpoint one or even hope to go after all of them once banded together.
Once this organization was formed, the name of The Syndicate was given to them. It is unclear if they chose it or it was simply attributed to them, but that matters little. They function as a sort of global crime empire, performing organized crime for the sake of the corrupt men that lead this group. Currently Based out of Ba Sing Se they control the brunt of the underworld and hire mainly freelance criminals to do their dirty work and have also begun usurping the gangs in the city into their ranks. They've even gone as far to hire a group of assassins to take out high value targets they want out of the way.