The Fulminators were among the Chapters created during the Ultima Founding at the direct order of Roboute Guilliman. They are one of the first Ultima Chapters to be created, having been founded in M31 during the last battles of the Scouring. The Fulminators are named after the electrical storms that rage on Mars and their first generations of Aspirants came from the best recruits heading into the Terran Guard.
- 1: New Warhammer 40,000: The Ultima Founding
- 2: Codex: Space Marines: Your first look! - Successor Chapters
- 3: War Zone Charadon - Act II: The Book of Fire, pg. 38