Board Thread:Warhammer 40k General Discussion/@comment-87.104.181.191-20160131190756/@comment-25869775-20160207001207

The Space Wolves are definitely not that high, they probably never were. Their numbers were always classified though so we don't know for sure. Now they are probably a little bigger than a standard chapter though, around 1,400, if I'd have to say. The wolf companies are a little larger than the standard company. They also have 12 companies, and have some extra units.

To answer the initial question, yes the Black Templars. However you have to acknowledge that the Ultramarines have more political power and can easily organize large conclaves of chapters. Dark Angels too. If there is a loyalist legion that stayed a legion its the DA.