Anarcho-syndicalist commune
You’ve come, in a wiki about the life and lore of the financial services industry, to an entry about anarcho-syndicalism? You well-meaning, wholesome fool!
A collection of self-interested workers collaborating for the common good of all that bears absolutely no resemblance to a modern multinational corporation, however much its executive board might pretend to themselves that it is otherwise. For a closer fit, try self-perpetuating autocracy.