The label was founded by Franz Koglmann, sponsored by some finance company (Deutsche Structured Finance), and as far as I know it almost went under. Now, I think ownership has changed, or Koglmann got out of it or something.
I guess they just never had a big budget to do marketing... but their roster is quite impressive:
Ralph Alessi, Christy Doran, Kermit Driscoll, Trevor Dunn, James Emery, dem Ensemble Plus, dem Ensemble xx Jahrhundert, Drew Gress, Gerry Hemingway, Peter Herbert, Tristan Honsinger, Francois Houle, dem Klangforum Wien, Art Lande, Peggy Lee, John Lindberg, Carl Maguire, Michael Moore, Simon Nabatov, Kevin Norton, Giorgio Occhipinti, Louis Sclavis, Gebhard Ullmann, Wolter Wierbos, Andreas Willers, Nils Wogram und Yitzhak Yedid (from wiki)
http://www.betweenthelines.de/main/index.shtml