Henry is founder and chief executive of Happy Ltd, an award-winning training provider based in central London. "He is one of the thinkers who we believe will shape the future of business", explained list compiler Stuart Crainer.

At the top of the Thinkers 50 list is CK Pralad, author of "The Fortune at the Bottom of the Pyramid". Others on the list of the world's most influential living management thinkers include Tom Peters, Bill Gates, Steve Jobs, Malcolm Gladwell, and Richard Branson.

The Thinkers 50 list has been compiled every two years since 2001 by business authors Stuart Crainer and Des Dearlove, and is published in the Times and Forbes. Stuart Crainer explained why Henry Stewart had been included by saying, "We are looking for people putting innovative ideas into practice. Nobody exemplifies this better than Henry, with the great workplace he has created at Happy."

"I'm a bit daunted by the famous names in the list", comments Henry Stewart, "many of whom are people who have inspired and informed me over the years. It's a huge honour to be associated with them in any way."