How to find a Big company in computer field like infosys for marketing a baking software better than I-Flex.?

The small pvt ltd company in software with more than 100 man years of testing and about 60 installations desires to put the product for International marketing hence needs to find marketing partner like Infosys so also needs to get converted in to public ltd company.Hence can you suggest the path to select the appropriate partners and for IPO conversion.