I don't think EDGAR is outsourced. I think EDGAR is a project run by the SEC. There appears to be a separate company called EDGAR Online which is all about taking data from the SEC's EDGAR and making it more palatable for institutional investors. The only outsourced component here is the EDGAR Dissemination System (the subscription push feed of EDGAR filings), but that is outsourced to a company called Attain, LLC.