This study tries to systematically identify claims about societal benefits of Open Access by analyzing different documents written by Open Access supporters. Three types of documents are used: key declarations and statements in support of Open Access, Open Access policies issued by public funding agencies and journal editorials announcing the adoption of Open Access. Analysis shows these three types emphasize different benefits for Open Access as they address different audience. There is strong support of the idea that Open Access has benefits to different groups of people outside side the university/credentialed research institutes. It is not clear how much evidence is available to support these claims, but identifying them would suggest new stakeholders to involve in the conversation and perhaps also inform the ongoing debate about who should bear the cost of Open Access.