The France-based Ariane Group is the primary contractor for the Ariane 5 launch vehicle, and it has also begun developing the Ariane 6 rocket. The firm has a reliable record—indeed, NASA chose the Ariane 5 booster to fly its multi-billion dollar James Webb Space Telescope—but it also faces an uncertain future in an increasingly competitive launch market.
Like Russia and the US-based United Launch Alliance, the Ariane Group faces pricing pressure from SpaceX, which offers launch prices as low as $62 million for its Falcon 9 rocket. It has specifically developed the Ariane 6 rocket to compete with the Falcon 9 booster.
But there are a couple of problems with this. Despite efforts to cut costs, the two variants of the Ariane 6 will still cost at least 25 percent more than SpaceX’s present-day prices. Moreover, the Ariane 6 will not fly until 2020 at the earliest, by which time Falcon 9 could offer significantly cheaper prices on used Falcon 9 boosters if it needed to. (The Ariane 6 rocket is entirely expendable).