Nowadays, all businesses need a website.  Not just because most of companies have it, but because websites are related to marketing and business. It is known the fact sales are influenced by people looking for products online on their computers or mobile devices screens. In fact, their purchasing decisions are influenced by best optimal price, by the way, it could be one of your competitors by the way.
So no matter what kind of business you own, it is small or big company already but with a professional website your company can succeed in faster and effective, relevant way in different markets.