Competitor comparison

The table on this page shows a short list of large-payload airship developers.

Note that many designs, in particular the Hybrid/multi-hull shapes, are in fact Heavier-than-Air, and so are not naturally able to hold a geo-stationary position in zero-wind. In other words, they combine aerostatic lift with aerodynamic lift, such that they generally need to be moving through the air to maintain flight (by using thier shape as a wing).