A website is important because it helps you establish credibility as a business. Most people just assume that you have a website since the vast majority of businesses do, at least the vast majority of big companies do. If you don’t have a website that you can refer people to potential customers are going to assume that you are a small time company that does not take their business seriously. The bottom line is, it is imperative for every business to have a website. The more professional your website is, the more advantages you can gain.