Yeah, Axiom is working on a private space station that would bud off the ISS when it deorbits. Although they have some money problems right now.
For asteroid mining, look up AstroForge. They're working on mining platinum group metals from near Earth m-type asteroids. They launched a forge demo sat and soon will launch an asteroid RPO demo sat.
Why did they need to reinvent and overcomplicate a door handle in the first place?