There is no way to know for certain, but you can and should do some broad-based internet searches (e.g. "Google") searches as well as checking with the Better Business Bureau--you want to see if ANY complaints about them surface, any legal actions or lawsuits, etc. Search not only for this comany's name, but also under the names or any affiliate companies or any executives or owners.More generally though, debt settlement companies are rarely "legitimate" in the sense  that--1) They are not doing anything you can't do yourself--they have no special power to settle debts--and therefore you are paying them for something you could do; and2) If this is the kind of debt settlement where you pay the company and they hold onto your money until they feel they have enough to make a lump sum offer (usually, after first taking out their fees), be aware that you or they have no right to not pay your debts; if they do this, you will be in default on your debts from the money being withheld, and could face lawsuits and credit damage.