Gary, I'm confused. Are you talking about swirls or not? There are more than 3 companies to consider for fiery translucent mibs. There are at least 5 that I know of, and I'm fairly sure there are more.
If you are speaking of swirls then some of the makers to consider when you have fiery translucent marbles are Christensen and Champion. I suspect there are others.
If you are speaking of fiery translucent marbles with seams, then SOME of the makers to consider are Akro, Pelter and Marble King. And I suspect there are others.
I thought you were talking about swirls, so I stressed the Champion possibility. However, with your last post you have me pretty thoroughly confused, so I guess I'll take a break now.