Altitude Inspires managing director John Saunders said the search would continue in the new year, following the appointment of Sophie Duncombe as account director in December.
Duncombe was previously operations manager at Citron Events and worked on a temporary basis for Altitude Inspires for six months prior to the appointment.
She will be based at the company's Kensington offices and responsible for looking after clients and assisting in the creation and execution of event-marketing campaigns.
Saunders said: "I am delighted to have Sophie onboard. She is hard working, proficient and has very much a ‘can do' attitude. She's also great fun and is going to be a great addition to the team."