I've heard of Nidecker. I have never seen or ridden one of their boards, though. They seem non-existent in the NA market.
Just like Elan boards unless the boards come in the form of Capita sticks. I was curious about the Nidecker Legacy but hard to find any info.
In regard to Light Snowboard, they seem to have an extensive international distribution but nothing in North America. They do surf too. I'm sure there are plenty of quality operations that nobody's heard of over here.