Performers at the pageant, including Inuits from Canada, cowboys from Oklahoma and presidential bodyguards from India, will stay in a Snoozebox - an innovative new style of self-sustaining accommodation.
The Surrey-based company has teamed up with H-Power, organisers of the Royal Windsor Horse Show, and the pageant which takes place from May 10-13, to house performers within the grounds of Windsor Castle. The plans hope to boost to the local economy following last month's announcement that 1,000 campers will stay in Windsor Great Park during the Olympic Games in July and August.
Simon Brooks-Ward, the director and producer of the pageant, said: "Snoozebox was the perfect accommodation solution for this important, international event, enabling us to house 600 people, inside the grounds of Windsor Castle, in luxury en-suite rooms.
"From a transportation and security angle, it was also a huge benefit not to have to move this number of people in and out of the venue every day."
Snoozebox was the brainchild of entrepreneur Robert Breare who came up with the innovation while needing the toilet at the 24-hour race at Le Mans, in France.
It launched last year at the British Grand Prix at Silverstone and Mr Breare said: "It is a great privilege to be part of this flagship Diamond Jubilee event, and we look forward to hosting guests from around the globe and contributing to the success of what will undoubtedly be a magnificent show."
The show, The World Comes To Windsor, includes 800 performers from 16 countries and 500 horses in total and having high quality accommodation within the castle grounds means riders and crew will be able to attend closely to the horses, rather than being transported in from hotels around Heathrow.