Galalloy Industries, a corporation that developed and manufactured droids, had a history of service that goes all the way back to the era of the Galactic Republic. This company was the originator of the first real probe droids, which were designed to explore planets and asteroids to find precious resources like metals for industrial processing plants. These probots were instrumental in the Republic's expansion into the far, unexplored regions of the galaxy later on.
- The Star Wars Sourcebook
- Galaxy Guide 3: The Empire Strikes Back
- The Movie Trilogy Sourcebook
- The Star Wars Sourcebook, Second Edition
- Galaxy Guide 3: The Empire Strikes Back, Second Edition
- Star Wars Trilogy Sourcebook, Special Edition
- The Official Star Wars Fact File 6 (PRO 1-2: Arakyd Probot Series)
- The New Essential Guide to Droids
- The Complete Star Wars Encyclopedia