The government department is currently inviting applications from companies to join the 20-strong roster, which will last for a minimum of two years.
The roster includes five lots, including live event management, exhibitions and roadshows and consultations.
The Home Office has sent out pre-qualification questionnaires, which are due back by 27 July.
Agencies are expected to be appointed in early December.
Forster recently ran the Home Office's 'It Doesn't Have to Happen' knife crime campaign, holding events in ten UK communities.
A Home Office spokesperson explained that the Home Office has a separate events roster to the Central Office of Information (COI) because 'work that may have been put through a COI arrangement would have involved a percentage for project management that we have the capability to run in-house'.
Meanwhile, a £12m government events roster put out to tender by the COI has attracted more than 1,000 applicants. The COI is busy reviewing the applications.