There is an aspiration and policy within the European Union to fully involve persons with disabilities in the community; this implies an opportunity to gainful employment. A large percentage of disabled persons remain unemployed despite this policy, especially persons with mental health problems. This study aims at investigating how people with mental health problems and caseworkers in different agencies experience the vocational rehabilitation process from an interagency collaboration perspective. The study reveals a number of hindering factors portrayed and discussed in six themes – the time available for rehabilitation, management, new ways of working, absence of an actor, continuity and consensus – and also tables the implications for interagency collaboration in the field of vocational rehabilitation.