Abstract: A shipper selection system for selecting a shipping service provider is provided. The shipping selection system includes a parameters determining module for determining parameters of a package to be shipped, a retrieval module for retrieving shipping cost rules for one or more shipping service providers, a contract module for retrieving contract rules for the one or more shipping service providers, and a calculating module for calculating one or more shipping costs based upon the determined parameters, retrieved shipping cost rules, and retrieved contract rules. The shipper selection system further includes a selection module for selecting a shipping service provider based upon the calculated one or more shipping costs. The shipper selection system further includes an update module configured to enable the one or more shipping service provider to update a geographic range or shipping cost rules for his shipping services.