The debt consolidation companies usually offer loans which require payment of interest. To choose a genuine company consider their rate of interest and choose the one that fits you. Some companies may offer high interest that may be hard to pay making you lose the collateral. It is important to consider the type of collateral that the bank is willing to take in order to secure the loan.
Check whether the lender has the relevant certificates to prove that his company is legitimate. Consider if he is registered with the relevant bodies to avoid being misguided. To know whether the company is valid or not you need to look for an adviser who will guide you through the choice of the company. Look at their reputation and if good make use of them.
When you take this precaution you will be able to identify a legitimate company that will offer you a debt consolidation loan. There are genuine companies out there, what you need to do is to conduct a good research on them and you will identify them.