John J. Grumbar


consultant name

John J. Grumbar Egon Zehnder, London


John Grumbar, based in London, was Egon Zehnder’s Chairman and CEO before retiring from the partnership in 2010. He remains active on the firm’s board and continues to advise clients on leadership and governance. John also serves on several corporate and not for profit boards.


Prior to joining Egon Zehnder, John spent ten years in the securities industry and was a member of the London Stock Exchange.

John earned a BA in Philosophy and Economics from the London School of Economics and an MBA from INSEAD in Fontainebleau, France. He is a member of the Ashoka Support Network for Social Entrepreneurs, which works to find solutions to enduring social problems.

News and Publications

Riding the waves

Gabriel Andrade and John Grumbar argue that shorter economic cycles call for new levels of inner strength and responsiveness.

consultant name

John J. Grumbar Egon Zehnder, London