Lord Avebury (Eric Lubbock) has served as PSG president since 2002 and a number of British MPs including Ann Clwyd and Simon Hughes are sponsors.
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Other notable sponsors of the organisation included renowned British writers Harold Pinter and Graham Greene.
Peru | Universal Music Group | Warner Music Group | Coxeter group | Volkswagen Group | Group of 77 | RTL Group | girl group | BT Group | ABB Group | Group One | Virgin Group | Thales Group | ING Group | group | Trujillo, Peru | Rio Tinto Group | Bloomsbury Group | Penguin Group | Carlsberg Group | Borders Group | Arup Group Limited | Benetton Group | Stagecoach Group | LMFAO (group) | Anschutz Entertainment Group | Tata Group | Rootes Group | Perú | Westfield Group |