The Migrant Merchants' Guild was a supposedly legitimate trade consortium that advocated for refugee rights and supported the Coruscant reconstruction effort. In reality, the Migrant Merchants' Guild was a highly organized crime syndicate that seized power during the riots in the Old Galactic Market after the Great Galactic War.
Even before the war's end, the guild served as a front for money laundering and goods smuggling, but kept mostly to nonviolent crime. Its membership was primarily nonhuman, and represented a powerful economic force inside Coruscant's nonhuman immigrant population. The Migrant Merchants' Guild expanded into bribery and extortion, with the Old Galactic Market as its headquarters, all the while keeping a thin veneer of respectability. Coruscant Security Force patrols often clashed with members of the Migrant Merchants' Guild in an attempt to keep the peace, and had, at the zenith of its power, begun applying its influence less towards shaking down local businesses and more towards interfering in planetary politics.