Identifying specific customer using Qualtrics

Our product app/ website uses the concept of multi-tenancy. Different customers use this same product accessing it thought this same URL. Depend on customers different features may be enabled disabled etc. we would like to create a creative / survey that is this same for multiple customers. Is there a way to identify responses by the customer? So we know from which customers most of the feedback coming thought We can not identify customers by geolocation as they are globally distributed