AnyRefer is a social platform where vendors can create their business profile and mention charges for their services. The business profile will be like company page in Linkedin/Facebook. Vendors can also mention how much incentive he/she can provide if someone refer and he/she gets the project. Incentive can rage from from restaurant lunch to a percentage in a project.
AnyRefer
Anyrefer.com where you can create referral team for your business and expertise.