The guild began its operations during the time of the Galactic Republic. In the era of the Galactic Empire, their size and structure made it beneficial for the Empire to offer slaver permits at a reduced cost. They trafficked mainly in Twi'leks and native Mandalorians. Terrinald Screed personally vouched for the quality of their Twi'leks. The Guild also occasionally dealt in Wookiees, but were unable to break the monopoly the Trandoshans had in the Kashyyyk system.
With the rise of the New Republic, the Zygerrian Slavers Guild became a remnant of its former power as the new galactic government outlawed slavery. Despite this, the practise still continued in criminal havens, and the Zygerrians continued to supply slaves to Hutt crime families and other similar groups.
- The Star Wars Sourcebook
- Galaxy Guide 9: Fragments from the Rim
- Galaxy Guide 10: Bounty Hunters
- The Star Wars Sourcebook, Second Edition
- Galaxy Guide 11: Criminal Organizations
- Pirates & Privateers
- The Essential Guide to Weapons and Technology
- "Underworld: A Galaxy of Scum and Villainy" — Star Wars Insider 89
- The Complete Star Wars Encyclopedia
- Star Wars: The Card Game — Knowledge and Defense
- Star Wars: Force and Destiny Core Rulebook