As a supplier, if I report payment behavior data to Experian could competitors steal my customers?

It is not possible for your competitors to steal your customers. Experian maintains strict confidentiality standards designed to limit access to, verify the integrity of and secure the privacy of new business information. Your company name is never displayed on a business credit report or revealed to other clients when they access Experian's business credit reports and products. We display only a general description of your industry. So your competitors can't target your customers or identify existing relationships.