The Shiortuun Syndicate partnered with the Yomo Council by 5 ABY. The Yomo Council was a group that splintered off from the Galactic Empire during the Galactic Civil War. This partnership was one of the reasons the Empire dispatched the 204th Imperial Fighter Wing to annihilate the Yomo Council's military might on the world of Fedovoi End.
Alexander Freed referenced the Shiortuun Syndicate in his 2021 book, Victory's Price: An Alphabet Squadron Novel. This novel is the third installment in the Star Wars: Alphabet Squadron series.