Sullivan made COO of Sigma

Sullivan joined the company in 2016 and had been executive vice-president, account services and strategy previously.

Prior to Sigma, he worked as vice-president, sales and marketing, for Cenveo Publisher Services and has also worked at SPi Global, where he was a senior executive handling its sale to CSC Capital.

As COO, he will oversee day to day activities of the organisation and guide senior leadership, from new and existing client engagements to delivering data management and visualisation in business and marketing strategies.

Stefan Willimann, CEO of Sigma Marketing Insights, said: "He is entirely passionate about the success of our clients, our employees, and Sigma. He understands the business intimately and how to leverage the work we do to inspire data-driven marketing transformation."