In the Inquisitor's handbook on pg 168 (sidebar) states: "There are three major Navigator Houses in the sector: Houses Banetek, Gazmati and Term L."
In another sidebar (physically smaller, but w/ approx. the same amount of text) on pg 173 of Disciples of the Dark Gods we are told: The dominate Navigator Houses are "the triumvirate of House Modar, House Yeshar, and House Rey'a'Nor."
Does anyone have an explanation for this conflicting information other than that the writers and editors of these two books (or at least these two sidebars) did not talk to each other/look at each others' work?