Part of the problem is that a fair number of builders are more like hobbyists, building only from time to time rather than as an actual business.
Current builders I’m aware of:
Marc Savoy
Junior Martin
Ed Poullard
Craig Vincent
Jesse Lege
Elton Doucet
Rusty Sanner
Jude Moreau
Ken Mouton
Johnny Sonnier
Not 100% certain all of the above are still building. Also, I’m sure there are other active builders that escape.