The JRC has recently published an “Invitation to Tender” for the “development of the technical components of the INSPIRE Geo-portal at European Union level “.
Both the contract notice (http://ted.europa.eu/udl?uri=TED:NOTICE:234033-2010:TEXT:EN:HTML&src=0) and the full text of the ITT (http://web.jrc.ec.europa.eu/callsfortender/index.cfm?action=app.homepage&instdir=5&type=1) are publically available.