Here’s how to tell if a company offering services to you is not a scam. Generally speaking, if the company spends no more of its time, or your money, in the process of diligently attempting to determine that your invention is part of the 999 of 1000. If they suggest a majority of the time that your invention is probably not worth pursuing further, then I’d say you have the real deal. Sadly, only a handful of companies in the United States are able to pull this off and stay in business. In your case, your company is asking for so much money, it’s more probable that it’s a scam.