There's a reason the referral method is so popular today; it works. Reward your happy customers who bring you a new customer by giving them a financial incentive, like a bill credit or a gift card, for example. You just might find that a referral program is a highly effective method for bringing in new business.
In many ways, referrals are a lower-cost market development strategy when it comes to bringing in new customers. Just think about the costly nature of an advertising campaign or a trade show, for example. Keep in mind that you need happy customers to see this come to fruition on a regular basis, so be sure to always make customer satisfaction a priority at your company.