Castellan Biosciences
Every automated system has someone who built it. For AEGIS, that was Castellan Biosciences — a private contractor, not a government office, and the other name on every Directive. See The Directive for what AEGIS actually did; this file is about who was behind it.
What they built
Three things, as far as this record can confirm. Something held in reserve at every trial site, stockpiled long before anyone knew if it would be needed. The interdiction infrastructure AEGIS still runs on where it's still running at all — sensors, checkpoints, dispersal hardware. And the logistics corridors that once moved all of it between sites.
That last one didn't stay theirs. The corridors' manifest system was reverse-engineered, not handed over — see Factions for who's running it now.
They didn't disappear
Assets are stranded. Personnel are scattered. Some installations are still under contract-mandated maintenance, kept running by people who haven't been paid in a long time and haven't been told to stop. Whatever else Castellan is, on the ground it's mostly this: wreckage that still has a logo on it.
A recurring name, not a mastermind
Castellan is the closest thing this record has to a repeat character. That's not the same as a villain. It's a company — one that built something that worked exactly as designed, with a design that turned out to be the disaster. Treat any account that makes it simpler than that as an account you should double-check.
What isn't confirmed yet
Whether the party described in Factions as "Designation Withheld" is Castellan's own containment element, or something else entirely sent to contain Castellan, is not settled anywhere in this archive. Don't trust a survivor who claims to know for certain — that's a source problem, not a fact.
Personnel records and internal directives beyond what's above: pending declassification.