Zangana has been global media relations manager at G4S for the past two years.
Before this he was head of comms at the Crown Group, and senior press and public relations manager at Sodexo.
He has joined WSH in a newly created role, where he will be responsible for internal and external comms across the company’s brands, which include BaxterStorey, Benugo, Searcys, Holroyd Howe, Caterlink and Portico.
Zangana said: "It is incredibly exciting to be part of a company that consistently demonstrates innovation across its brands and I’m looking forward to supporting the business through its continued growth."