A company that makes music stuff. I don't know about their other instruments, but their trombones suck. Don't get a jupiter trombone, unless you want to really be able to apreciate a half decent trombone. Their other instruments probably suck as much.
I played a jupiter trombone in sixth grade that we rented. In seventh I asked for a yamaha because they looked cooler. The slide is much easier to move and the instrument itself is much lighter. It's still not all that great, but it's good enough for a highschooler. We've continued to rent the same trombone for three years now and some day I'm going to buy it out of slavery, for sentimental value if nothing else, even though I really could use one with an f key.