Abstract: A technique is directed to methods and systems for customer accounts association in multilingual environments. The data aggregation system can utilize a machine learning-based algorithm that identifies all the accounts belonging to the same customer based on relevant account information. Inputs can include customer name, customer address, email, phone number, type of industry, or type of fleet. The system utilizes feature creation and a coarse pass to identify likely account pairs, perform account association by preparing an input core dataset, and update the core dataset at a predefined time interval with identified new or changed records.