The Rylan Star League is the main governing body of the Rylan species. The Star League has 150 member species, including the Rylans. By 2378, when the Enterprise first encountered the Rylans, The Rylan Star League is composed of over 200 star systems, 900 planets and thousands of warp-capable vessels.
- Main article: Rylan history
The Rylan Star Empire was founded in 1456, back then, the star league was confined to their home system and had only a hand full of small vessels.
The Rylan Star League is run by a high council with three hundred members, two from each species.