Andrew Thomson is a European Counsel in Sullivan & Cromwell’s London office specialising in UK and international taxation. He advises on the tax aspects of private and public M&A, redomiciliation, capital markets, restructuring and general, leveraged and project finance transactions, alongside his non-transactional tax advisory practice.

He has published articles and spoken at conferences on topics including the European Commission’s proposal for a financial transaction tax, the application of the state aid rules to tax rulings and OECD changes to tax treaty provisions.

Andrew is Recommended in Who’s Who Legal: Corporate Tax.

Andrew Thomson is a European Counsel in Sullivan & Cromwell’s London office specialising in UK and international taxation. He advises on the tax aspects of private and public M&A, redomiciliation, capital markets, restructuring and general, leveraged and project finance transactions, alongside his non-transactional tax advisory practice.He has published articles and spoken at conferences on topics including the European Commission’s proposal for a financial transaction tax, the application of the state aid rules to tax rulings and OECD changes to tax treaty provisions.Andrew is Recommended in...

Publications

Corporate Tax and Tax Controversy Law Guide

Author of the United Kingdom - Market Insights chapter in the Corporate Tax and Tax Controversy Law Guide , published 22 September 2026 .