Tiaral

I'm not a fan of that, personally. Not single-word names, but names in honor of gods that no one in this world knows. Even if you take the names of existing gods, it comes across as a bit strange. After all, it's a fairly modern trend that doesn't quite fit into fantasy. And specifically, I don't like Morpheus because it's just a beautiful name of a god that has very little to do with the organization's activities. It's more of a name for an acting troupe than for a mercenary organization.

Added 2 minutes later
From single-word names, you could look at some mythical creatures, but not too common ones. Like the previously mentioned Valravn, but not as dark. Besides, in terms of meaning, it would be more suitable for some wannabe knights.