Some implementations provide techniques and arrangements to aggregate data from multiple issuers. An aggregator server may receive data associated with a user from an issuer. The data may include an issuer identifier associated with the issuer, account access data associated with the user, and a storage location identifier. The aggregator server may authenticate an identity of the issuer based on the issuer identifier and determine whether the issuer is authorized to provide the data for the user. In response to determining that the issuer is authorized to provide the data for the user, he aggregator server may identify an account associated with the user based on the account access data and store the data in the account associated with the user based at least partially on the storage location identifier.