We use your data for validation purposes: companies ask us to check if the data they have are also present in our file. This allows them to check if their addresses are up-to-date or correct (if they have to send you a package, it's better if the address is correctly labeled). In this case, concretely, we do not transmit to them your data, we simply indicate if the data examined is the same as ours or not.
We can also correct data owned by our clients by comparing it with ours. For example, we can correct a postal code that does not correspond to the indicated street, we can also communicate a move, ... Again, this allows businesses to have data up to date to better communicate with you.
Finally, we can enrich data. For example, if one of our clients has your name and postal address, we can provide your phone number or your age, if this information is present in our database. We can also provide marketing profile data.
This information will help the company to know you better and determine the type of customer. In this way, she can adapt her communication (for example by using a more "connected" language if she is speaking to young clients).