Hannah Weiss-Martin met RDP biologist Javier Florentin in a cave diving expedition in Cordillera de los Altos,where they discussed founding a company together to explore quantum coherence in the brain and commercialise the integration of neurological smart matter. Nexus was incorporated in 77 BFC in the Argentinian Mancomunidad which had no laws on human experimentation, and their first contract was with Havfélög to develop enhanced focus in their marines. Nexus rented the abandoned Acrux-2 oil rig (offshore structures which were used to extract petroleum for the fossil-economy) in Argentina's Colorado Basin as their main working space, this was later purchased and became the company headquarters.

    During this time Javier Florentin was in a relationship with the well known aestheticist Julieta Gómez Romero, but she was tragically killed in 70 BFC during one of the periodo violento that were then still common in the Mancomunidad. It was not clear if Havfélög were involved, but that year Nexus cancelled all contracts with them and sold the rights to their neural models to Pharmatica, and the remainder of their assets to Microsynth the following year.

    Nexus operated as a division of Microsynth for 10 years before being divested as a wholly owned subsidiary, MNex, to avoid new biotech market disclosure rules. Due to external power and compute requirements BN was never cost compatible with the more commercially successful MemAmp technology, which in the 50s began to be powerful enough to replace BN in military applications as well. In 55 BFC MNex restructured, removing all divisions except those working on commercialising some of Javier's hibernation and cryopreservation research, and the company was successfully refocused around these. The main MNex laboratories are located in Silicon Valley in the United States, however the companies legal headquarters remain at Acrux, and some research which would otherwise be illegal is still conducted there.