We were very surprised when we researched USA Electronic Diversity Visa service websites because most of USA eDV service websites were owned by Non-US companies or Non-US citizens. Some of them have US addresses and phone numbers to pretend US websites, but there are not. Of course, foreign people or companies can provide the USA eDV services. But the services providing by Non-USA companies and citizens are NOT in the laws of USA.
Different from them, USAeDV.com is clearly a USA entity owned by USA citizens; also, we do abide by the law of the United States of America.