Background: Seclusion is a restrictive intervention that results in some form of containment and social isolation of a person from others. Little is known about the relationships between individual and organisation factors and the use of seclusion in disability services. Method: The reported use of seclusion in disability services in Victoria, Australia, was examined over a 3-year period, with a focus on the characteristics of those who were secluded (n = 146) and the characteristics of organisations that reported seclusion compared to others who were reported to be restrained but not secluded (n = 2,482). Results: Results from a logistic regression showed that the individual factors of age, the presence of autism and/or a psychiatric disorder put people at risk of being secluded. In terms of organisational factors, receiving accommodation services in institutions or in the community and the location of the organisation were risk factors. Conclusions: The findings are consistent with previous research but add to this literature by showing that certain organisational characteristics are also risk factors for seclusion. Understanding these factors is important in order to help disability support staff find other more ethical and appropriate alternatives to seclusion.