Vivien Duffield

Grange Park Opera operates as an opera company. The firm is an ancient house, grand but welcoming, formal gardens with secret corners for picnickers and gazebos, a sense of history and occasion, a crinkle crankle wall extending the length of one garden and beyond into the orchard (too majestic to describe) and barns and outbuildings and aged trees and box hedges. The company was founded in 1998 and is headquartered in Alresford, the United Kingdom.

Royal Opera House Covent Garden Foundation venue for theatrical productions, operas and plays. The company is headquartered in London, the United Kingdom.

JW3 Trust Ltd. is a private company based in London, UK. and has subsidiaries in United Kingdom. The British company is involved in organizing events and talks, including book signings. One of the events they organized was a talk by Daniel Finkelstein, who discussed his family's experience during the 20th century genocides and promoted his new book 'Hitler, Stalin, Mum and Dad'. The company was founded in 2006. The CEO is Raymond Simonson.