Moreover, there's lots of companies in every vertical needed for bootstrapping the industry - ground services, satellites, in-space manufacturing, asteroid prospecting & mining... all in the early stage, all betting on cheaper access to space than it was just few years ago. We're in a critical moment where things suddenly start adding up and - I hope - will form something great!
And Linkspace in China are making good progress with their scale prototype too (they just posted the first untethered hop video to their twitter).
It rather looks as if the tail-landing reusable booster stage is a "steam engine" type of eureka form factor, and everyone's going to be doing it. Yay!
Arianespace has spent years developing new rocket engines specifically for reusability, and has started building prototype rockets.
Bezos’ company has mastered landing, and is directly building their mars rocket.
In 5 years we’ll likely see at least 3 major companies up there with SpaceX, and true competition in space.