How i can add more fields in User dashboard, Like Company name etc

If you mean vendor account then please try to add vendor attributes in the WordPress dashboard and make them editable

If you mean regular users then it requires advanced customization by using the collection of code snippets Search · user:hivepress · GitHub and other developer resources, or hiring someone for custom work https://fwd.cx/hLhc73mQCD9R if you are not familiar with code customization