Quinn will become head of pharmaceutical services and Williams will become head of live events and PCO services.
Sophie Morris, managing director of Worldspan Group, said: "Our focus is on continuing to grow as an agency and we see the creation of these roles – and the leadership and specialist knowledge that Nicola and Amy will provide – as an integral part of our overall growth strategy.
"In the association sector, Worldspan is currently working with seven associations. It was recently appointed by the European General Galvanizers Association. Our live events team work with brands such as E-circle and Spiceworks. In the healthcare sector we are currently working with three global brands.
"By formalizing and deploying specialist teams within these segments, we believe that we will capture more opportunities. We remain very optimistic and excited about our future plans and how the business continues to grow."