ERA and UIC have decided to work together to promote HOF in the railway sector thereby creating synergies between the two organisations. The creation of a virtual HOF platform is a concrete example of this collaboration. Whereas other high-risk domains such as aviation and nuclear have their networks of subject matter experts building and sharing knowledge to improve safety and performance in their respective domains, the railway sector does not yet have free access to a similar network or platform. The paper presents the devlopment of a platform to support this.