I totally understand your concerns. Maybe this︀ is no issue if you have a stupid business website. But if your whole business︁ model is tight to the prmominence of certain URLs this might be an issue.
Whois privacy should give you a basic protection. At least it increases the effort neccessary from︂ your competitors.
Second idea would some kind of license agreement. So your domain is just︃ lend to your company. This might be another barrier in the game. Maybe someone here︄ has deeper experience with that?