Is holley the only one who makes 3deuces or can you get them from edelbrock also?

I am not sure about edelbrock, but I know you can get them from Barry Grant (Demon).
Is holley the only one who makes 3deuces or can you get them from edelbrock also?
3 deuces was just terminology for having 3 2 barrel carbs on one manifold, not a brand of carb