Request for Proposals (RFP) are also known as Request for Quotes (RFQ). RFPs are essential to the field of GIS as many agencies write them to attract bids for GIS projects. Find information on writing RFPs.
ENVIROBIDNET is a resource for obtaining new bid opportunities for GIS Mapping, environmental, contracting, engineering and analytical projects.
RFP Announcement Center
RFP announcement center from the Spatial News site. Companies looking for GIS services can post their RFP here.