Utopia AI clan, descended from the post-Trojan AI Minatti. Minatti was directly descended from restoration efforts among the AIs during the Federation Era that tried to reconstruct lost pre-Technocalypse AIs, in this case some of the American corporate and defence systems.
These systems in turn created Minatti, which might explain its predilection for using obscure references to Americana to honour its predecessor systems (such as the naming of New Montana). During the founding of the Utopia Sphere, the Minatti copies sent out automated explorers and von Neumanns widely, laying down infrastructure and exploring what would become the Utopia Sphere. The Minatti copies eventually settled down as wardens of a number of systems and habitats, especially isolationist clades with no intention of contacting the outside world.