Please tell me best bitcoin wallet software company
Most Bitcoin wallets is created and or maintained by the community, except maybe Electrum which has its own company (Electrum Tech). However, in reality,, it's just Thomas and the gang who update and fix the bug via GitHub, so essentially it's maintained by our community.
I'm curious though, do you even know what is "wallet software company", or are you trying to say software wallet like Electrum, Wasabi etc?