The reason we only work with service businesses is because service businesses require a much different online strategy than other types of businesses. For example, the goal fo an E-commerce business is to transact a sale online, the goal of a publishing company is to generate revenue through advertising and affiliates. The goal of most service businesses is to generate leads online and deliver service offline. The strategy used to generate online leads, is much different than trying to transact online sales or generate ad revenue.
If you're a service businesses, don't just hire any digital marketing agency to work with. Make sure you hire an organization that specializes in generating online leads, and more specifically - specializes in service businesses.