This follows news this week that the De Vere Group is looking to sell De Vere Venues, a portfolio of 30 venues estimated to be worth more than £280m.
C&IT revealed last month that De Vere Venues had entered into discussions with Altitude London at the end of 2012 to take on the property as part of a full management contract.
Tony Dangerfield, CEO of De Vere Venues, said: "We're delighted to announce Altitude London as our latest management contract. This spectacular group of venues further strengthens our diverse venue offering in the capital and underpins our continued growth strategy."
Justin Etzin, owner of Altitude London, added: ''We have every confidence that Altitude London's meeting and events proposition will go from strength to strength with the support of De Vere Venues’ market leading brand. Their position in the industry leaves me without doubt that Altitude will continue to prosper as one of London’s leading conferencing and events spaces.''