Da Inglese a Italiano Affari/Finanza Affari/Commercio (generale) eSourcing (gare d\'appalto online)

Ringrazio anticipatamente chiunque mi dia indicazioni riguardo il termine sponsor in questo contesto.
Si tratta del manuale utente delle procedure per gare d'appalto online. Sponsor sarebbe l'azienda che fornisce gli strumenti telematici per poter effettuare la gara.
Ho trovato questa parola in due contesti:

ADDITIONAL DOCUMENTS
To download/open or upload any supporting documents to this eRFP/eRFQ event select the "GENERAL ATTACHMENTS"-Tab on top of this screen. You will see then two additional options:

"*SPONSOR* ATTACHMENT"-Tab: Here you will find addtional supporting documents and files from XXX.
"RESPONDENT ATTACHMENT"-Tab: Here you are able to attach/upload your own documents and files for XXX. Maximum file size 10MB per file.


1.7 Event Contact Details
You may delete either Event *Sponsor* or Event Manager if not required. However always ensure you put your contact details and the Regional eSourcing Coordinator's details for the suppliers if help is required.