Clients of Global Counsel, co-founded by Mandelson, included OpenAI and Palantir, which have both signed deals with government Clients of Global Counsel, co-founded by Mandelson, included OpenAI and Palantir, which have both signed deals with government A lobbying firm co-owned by Peter Mandelson worked for OpenAI before the US tech company signed a wide-ranging agreement with the UK government to explore deploying AI in Britain’s justice, security and education systems. In 2024, the $500bn-