Iain Macmillan

Managing Partner

Global M&A Services Leader

Iain Macmillan

1 New Street Square


United Kingdom


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Iain Macmillan is our Global Leader for all M&A Services across Deloitte and a member of our extended Global Executive. He is a partner in the UK firm where he also leads Deloitte North South Europe’s M&A proposition. Iain has extensive experience on complex UK and multinational transactions and has specialised in due diligence services for more than 25 years. Iain is our Senior Global Advisory Partner for Diageo having previously been Global Lead Client Service Partner and also leads the Global Financial Advisory relationships for a number of other major Corporate and Private Equity relationships. Iain is a qualified accountant and holds an MBA from Manchester Business School (Director’s List).

Iain Macmillan