It’s an industry maxim that Big Law is getting bigger.

Industry bellwether Kirkland & Ellis last week became the first law firm to break the $6 billion revenue barrier. So not only is it an adviser to many in the Fortune 500, but it’s conceivable that it could find itself named to the illustrious line-up, criteria permitting—Latham & Watkins, too, with its own $5.5 billion top line putting it on par with household names at the junior end of the list.