Rocket Lab is an excellent company that makes innovative rockets: flying electric pump fed engines, carbon fiber frames and 3D printed Inconel engines all the way to orbit. They've achieved a high flight rate and a nice niche for themselves in a area where SpaceX themselves have moved away from.

Rocket Lab deserves the praise it receives. More so than Blue Origin, an older company whith grander ambitions but has been unable to execute on anything beyond a few small scale suborbital hops. Their methalox BE-4 engine is admittedly pretty cool though.