Ah yes, for people trying to reach companies outside of the crunchase/linkedin/apollo universe, we would not be great for discovering them.
However, we've had users find leads from other SMB-focused indexes and import them as CSVs into AnswerGrid for additional research.
One example is if you had a list of thousands of roofing companies (with websites) and wanted to flag which of them focused on commercial projects. You'd import this list and deploy our web scraping tool to visit their websites and look for any indication of this.
We are, however, planning to expand the coverage of our company index too