You may be unable to get a list of such companies on a database or website. The alternative is to inspect the annual reports of companies through a content analysis methodology for disclosure on supply chain finance.
In my observation, there is no explicit disclosure of the use of SCF (Financial Service Provider Mediated SCF) in any database. Non Financial Service Provider Mediated SCF you should be able to extract. In the end, it boils down to your definition of SCF.