Dr Pegg, a former director of Ashridge Business School, took over the role in January last year from the organisation’s founding chief executive Ewart Wooldridge.
Sir Andrew Cubie, chair of the Leadership Foundation, said its governing board thanked Dr Pegg for “his valuable work” over the past 18 months.
“During this time, he has successfully led the transformation of the Top Management Programme, introduced the Aurora project for women leaders, championed the development of strong relationships with the Leadership Foundation’s 150 members and maintained the organisation in good health financially,” he said.
Dr Pegg said it had been “a real privilege for me to work with such an excellent team of people during a period of rebuilding”.
“I asked them to do a great deal in a short space of time and they always responded creatively and responsively, contributing their own thinking to meet our customers’ needs to the highest standards. I am certain the Leadership Foundation is in great shape for the future,” he said.
A spokeswoman for the Leadership Foundation, which was set up 10 years ago by Universities UK and GuildHE to improve management and leadership skills in the sector, said it would be recruiting a new chief executive “in due course”.