Background: The sexual lives of people with intellectual disability is made complex by the involvement and influence of social service providers, whose beliefs and values have a great impact on the support they provide. We hypothesized that social service providers' role, educational level and service in which they worked could affect attitudes towards the sexual behaviour of individuals with intellectual disability. Materials and methods: The current study describes attitudes of social service providers towards the sexuality of individuals with disability measured by 20 items of Sexuality and Mental Retardation Attitudes Inventory (SMRAI). This instrument was devised by Brantlinger ["Mental Retardation" (1983) Vol. 21, pp. 17-22] to assess the attitudes of the staff employed by organizations that supplied services to individuals with intellectual disability. Specifically, analysis of variance (type of service x professional role x education) was performed on participants' scores. Results: Results suggested that the social service providers participating in this research study tended to have moderately liberal attitudes. Educational level and role carried out did not produce differences in their attitudes. A significant difference emerged between those who operated in different services. It was especially the staff of the outpatient treatment services who revealed the most liberal and positive attitudes towards the sexuality of individuals with intellectual disability. Conclusions: The data reported in the present study seem to underline some differences between the data collected from the Italian and the Anglo-Saxon social service providers. Failure to record influences associated with the role carried out and previous training could be related to the different contextual differences. Results suggest that particular attention should be paid to the training of those who hold managerial posts in Italian residential services.