It is a while since I looked at the issue of Sandline etc. While the material below seems OK it is entirely unreferenced and posted posted here until supporting links are added.--Bob Burton 15:13, 4 Feb 2006 (EST)
Grunberg performed the role of adviser on the most efficient tax structures, transfers of funds, contract negotiation and international property and commercial law. He was the brains behind EO's labyrinthine corporate structure.
He was a partner in Stoy Hayward (now BDO Stoy Hayward) from 1981 to June 1994. BDO Stoy Hayward is one of the UK's largest firms of accountants. It had a particularly strong presence in the Defence Sector during the 1980s and, because of this, has long-standing connections with the intelligence services.
According to his former colleagues, Grunberg was one of the rising stars on the consulting side of Stoy Hayward. A desire to act as principal rather than as adviser to third parties resulted in his resignation from the firm in 1994. While at BDO Stoy Hayward he was keen on charity work. He was a director of Tommy's Campaign, a gynaecological research charity connected with a London hospital, served as chairman of the marketing committee for Comic Relief in its early days and implemented the national telephone donation system for the original Live Aid concerts.
Grunberg became a director of Plaza 107, based in the King's Road, Chelsea, in August 1994, along with an ex-BP man, Philip Dimmock. Plaza 107 was simply described as 'a general commercial company' and provided core representation services for a range of companies. He was also the shareholder.
Grunberg was also a director of a Canadian mining company quoted on the Vancouver Stock Exchange called DiamondWorks. Grunberg has acknowleged that Sandline and Heritage Oil are 'clients' of Plaza 107 Ltd which provides 'representation and support services'. Plaza 107's auditor is Grunberg & Co.