Unlike NeoNET (via RJR Reynolds) and Aztechnology, Evo is not one of the First Seven - the ones that cannot be disenfranchised, that are permanent members of the Court, and therefore permanently AAA corporations. Of the three, a permanent takeout of Evo would be least cataclysmic. However, they'd all be cataclysmic; the last two times it's happened have been ... major game changers, either in effect or in cause.
The corporation to which Neonet owes AAA rating is JRJ International. The name is considered to be a reference of some sort to R.J. Reynolds company, or RJR (not "RJR Reynolds" - the second R is the one of Reynolds). But that's a reference. It has never been stated if that was to mean JRJ was a tobacco business, if RJ Reynolds existed in the SR timeline and if it was a component of JRJ. Oddly enough, it would be one of the few case, along with US broadcast television - NBC, ABC and CBS being replaced by NBS, ABS and CBC - where an existing corporation is only alluded to, instead of being mentioned openly - as BMW, General Motors, Hyundai, IBM, Apple and countless other have been.
The fall of Cross Applied Technologies was anything but cataclysmic. Lucien Cross death in an air crash was just a random event. Sure, it happened because of the second Matrix crash disrupted air traffic control. But air crash happens all the time for
all sort of reasons. It could just have happened the week before. To say such accident is enough to crush a AAA rated megacorporation is to say any of them can vanish anytime.
But if you ask me, that section of
System Failure was bad. The actual problem of the Seraphim suddenly becoming unreliable is barely addressed and then Ares performs a "magical takeover" sadly typical of SR that completely ignore the basics of how corporations are supposed to work.
To take out one of the original seven would then make it so that ANY of the original seven could be taken out.
Well, not exactly. As we've theorized, all it would take would be one of the others to absorb the one ...
And the fighting over who would get to absorb that piece would be LEGENDARY.
I doubt it. Acquiring it would most likely be accomplished by a certain sleight-of-hand.
The scenario would depend on the corporation. The founders' privilege is attached to the company proper. Ares Macrotechnology, Aztechnology, Mitsuhama Computer Technologies and Shiawase are founding corporations. The three others still are BMW, JRJ International and Keruba International, but the rating apply to their parent corporation - Saeder-Krupp, Neonet and Renraku Computer Systems (although the book mentions Richard Villiers personally owns JRJ, which I fail to understand how it could be done).
That is to say, the AAA guarantee could be attached to an empty shell. Aztechnology or Neonet could be dismantled, with Pemex, Dassault or Stuffer Shacks, or Novatech, Transys Neuronet and Erika going to different corps, and the AAA guarantee to another one. While for instance Ares Macrotechnology would be very interested in taking over Dassault, to further establish its domination on the defense industry, the only point in acquiring the AAA guarantee of Aztechnology would be to prevent Wuxing, Horizon or a AA corporation from getting it, which is a goal several AAA could agree on.
It's not clear however what the legalese that bind AAA rating and Zurich-Orbital Gemeinshaft Bank shares. It would make sense for the founding corporations to each have a nominal golden share in ZOG, and that those shares are the actual guarantee for AAA rating. Which could mean that if a founding corporation was to take over another one, it could get double dividends from ZOG and possibly even a second administrator seat. But it is also possible that such golden shares provisions would have been written in a way that prevent this.