I love it when people focus on part of one thirty-page chapter in 176-page book as broad as this book's scope is.
That being said, in case I didn't make it clear earlier there is now a list of Sixth World intelligence agencies and a glossary with "industry" terms. For example, there are now names for the intelligence subsidiaries of the Big Ten and several corporations and nations, and others, including the UCAS. Though I did forget every g-d time up to the time of the print release to include the IRS in the UCAS intelligence community (which is canon per Runner Havens). It is actually smaller than the current one (in number of agencies and sheer size, natch). But I thought you might want to know. You're getting the inside information here. There are also a couple not listed that just aren't for various reasons. And, of course, it is not a comprehensive global list. However, considering the small scope and size of most nations' and corps' intelligence goals and operations (There are only really three countries in the world IRL that have had a global presence in decades) it is fair to assume and play out the idea that the ones listed, even if they aren't Aegis, Argus, or SIS are probably service providers to smaller players. Even IRL many small agencies have often been little more than proxies or fronts for big agencies.