The structure and dimensionality of the trustworthiness construct are important theoretical and practical issues. Building on the work of Ennew and Sekhon and based on a sample of 625 respondents, this research identifies a six-factor structure of trustworthiness of service providers in the retail banking sector: customer orientation, integrity and honesty, communication and similarity, shared values, expertise, and ability and consistency. After assessing the reliability and validity of this factor structure, the study also compares the five alternative models of trustworthiness. Results indicated that the trustworthiness model with the six first-order factors has the best model fit. Higher order confirmatory factor analysis was used to identify three second-order trustworthiness factors, which are competency, openness, and benevolence. The various dimensions of trustworthiness are viewable as levers of improving a bank's trustworthiness in the minds of its current and potential customers.