More than 100 G4S employees will be providing a range of security and safety management services for the four-day event, taking place at Sefton Park and the Pier Head between 23 and 26 August.
The company will be conducting ticket checks and bag searches, providing perimeter security, and offering crowd management support and rapid response teams to help the police deal with inappropriate behaviour.
Eric Alexander, managing director of G4S Events UK, said: "Every year G4S provide security services at thousands of music events across the UK and we have a great track record of supporting events in and around Liverpool.
"By working in close partnership with the organisers of the Liverpool festival we expect to be able to provide the highest level of security and safety support to ensure that visitors enjoy the festival."
The Liverpool International Music Festival will be hosting a number of events, including a performance from the Royal Liverpool Philharmonic Orchestra taking on a brand new stage in Sefton Park, as well as two outdoor stages located at the Pier Head featuring a tribute to The Beatles.
Susan Lees, head of event for Liverpool City Council, said: "This will be the largest music event to be held in Liverpool this summer so visitor safety is paramount. It is vital that we have a security and safety management team who understand our needs to help us provide a safe and fun environment for visitors.
"We are really glad to have G4S Events on the team and we are looking forward to working with them on what promises to be a fantastic event for the city, those who live here and those who are coming to visit."
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