Event caterer Seasoned has won a place on the list of preferred suppliers for Two Temple Place in London.
The Victorian mansion built by William Waldorf Astor on the Victoria Embankment was completed in 1895.
It is owned by registered charity, the Bulldog Trust and can be hired for events, exhibitions and private functions such as weddings.
Colin Sayers, managing partner at Seasoned, said: "We are so pleased to have been added to Two Temple Place's preferred suppliers list. We already have our first event booked here for two weeks' time and we cannot wait.
"The venue is a beautiful space steeped in history and full of hidden treasures. We are honoured to have been chosen to cater for them and are really looking forward to working with the team there and creating some outstanding events."
Rachel Bellon, events manager of Two Temple Place, added: "We manage a vast variety of events and it is absolutely vital that we have a team of suppliers we can trust to provide the excellent support and impeccable service that our clients expect from such a unique venue."
Seasoned, which is part of Crown Partnership, recently extended its partnership with both the Museum of London and the Museum of London Docklands for a further two years.