If I register a domain name through your company, who is the owner? Is it me, my client or Navicosoft?
When you register a domain through Navicosoft, you and your client (the name under which the domain is registered) are the rightful owners. As long as you continue to renew your domain, ownership remains with you. However, if you fail to renew, the domain could be deleted and become available for someone else to register.
If you're ever uncertain about your domain ownership, a quick Whois lookup will help you verify. Keep in mind, if you're using a privacy protection service, your personal details might not be publicly visible.