content: We're actually listing all the tested antivirus products which were tested by reputable testing organizations. We're not manipulating any data, including the tested vendors. We don't have an affiliate agreement with most of the listed vendors, including the ones you mentioned, but in order to bring the most accurate data we thought it wouldn't be right to leave out smaller vendors. If we remove the small companies we might be accused of favoritism, while this tool's main purpose is providing complete and objective information. Bottom line: If they were tested enough times, they're listed.  Thanks for pointing out the bug you found! I see that it doesn't work when I click it here, but it works for me on the site when I click the 'visit' buttons. I'll escalate it.