Iain Mackie Partner

Iain specialises in large-scale corporate and financial services litigation and arbitration for a mix of UK and international corporate clients, private equity houses, entrepreneurs, family offices and financial institutions.

Iain is well known in the market for his expertise in handling complex corporate litigation, including large shareholder, joint venture and post-transaction disputes. He also advises on fraud issues; the rights and obligations of directors; derivative actions and unfair prejudice petitions; insolvency issues and restructuring. Much of his work is of a multi-jurisdictional nature and he has particular expertise in matters involving private equity investments, owner-managed businesses and entrepreneurs.

He acts for financial institutions and fund managers in relation to disputes concerning fund and asset management, lending/security, complex financial instruments (particularly derivatives), trade finance and internal investigations. He has extensive experience of regulatory investigations by the FCA and other regulators, both in the UK and elsewhere, and advises on market abuse and compliance issues.

He is regularly involved in advising non-UK clients involved in English law disputes, particularly in relation to international arbitrations concerning commercial and corporate matters, and in dealing with complex cross-border litigation.

Iain was head of the litigation and dispute resolution group for 12 years, and he is now focusing solely on client work.

What people are saying


"Iain Mackie is always a calm, measured, head and on top of his brief."

The Legal 500 2024

"Iain is a phenomenal lawyer who combines superior intelligence with deep legal expertise. His advice is always extremely well thought through and designed to be in the client's best interest."

Chambers UK 2024

"He is very good at dealing with complex, multifaceted litigation."

Chambers UK 2023

"Iain Mackie – extremely experienced and wise litigator. Very sound commercial judgement and remains calm and effective under pressure when commercial litigation is at its most challenging. Adept at handling the largest and most complex of cases."

The Legal 500 2023

"Iain Mackie: always on top of what the client wants and needs; clever, astute, savvy, with excellent judgement."

The UK Legal 500 2022

"Iain Mackie exhibits discipline, patience and thoughtfulness, even in difficult situations where the stakes may be high."

Chambers UK 2022

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