Sleigh (pictured) will manage a team of account managers to grow project-based sales in her new role.

Before joining Zappi, Sleigh was at Hall & Partners and also spent a decade at Kantar South Africa leading multidisciplinary teams through digital transformation.

Dimitra Spiliotopoulou has also joined Zappi as director of business development, and will be tasked with growing international business at Zappi in her new role. Before joining Zappi, Spiliotopoulou was at Nielsen Media for five years in regional sales.

Sim Dehra has been hired by Zappi as vice-president of strategic accounts and will develop relationships with Zappi’s customers.

Prior to her appointment at Zappi, Dehra worked in advertising research with DVJ Insight. Past roles include spells at Kantar Millward Brown, GfK, Nielsen and MetrixLab.

André Ketzel, senior vice president of international sales, said: “I am very excited to add these three accomplished sales professionals to my team. They bring many years of experience to the Zappi sales organisation.”