The client doesn't buy your service first. They buy their trust in you. That's why there are excellent projects that don't generate enough sales, while lower-quality projects attract more clients. The difference often isn't in the service. The difference is in how it's presented. When a client asks for your company profile and can't find it, or you send them a weak file, you're giving them a reason to look for another competitor. Every unprofessional page in your profile could cost you a deal. And every piece of information presented incorrectly could diminish the value of your project in the client's eyes.