A sales matching system which may match sales of products or services with consummated sales by collecting selected leads from a group of lead suppliers, collecting a plurality of sales records from multiple sales sources, and matching at least some of the sales records to selected leads. The matches may be assigned a matching confidence, and may reach a threshold level of confidence to be considered a matched sale. The system may also generate invoices to selected sellers identifying invoice-able sales for which compensation may be obtained in exchange for providing leads giving rise thereto.