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Stiles Duncan

Duncan Stiles

Partner

Duncan is a senior corporate partner renowned for his expertise in guiding clients (particularly from the US) through complex, strategically important, cross-border M&A.

D +44 20 7809 2163
M +44 7768 122 740

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Awards & Recognition

Recommended Lawyer - Corporate M&A
The Legal 500 UK 2025

"Stands out for his extensive experience assisting US companies on European-focused acquisitions."

The Legal 500 UK 2025

"Duncan Stiles and Zoe Yuile led the deal team for Stephenson Harwood. They were exceptional in every way. They had great availability, were very smart, very experienced, and very pleasant to work with."

The Legal 500 UK 2024

"Frequently sought out for assistance in transatlantic investment deals."

The Legal 500 UK 2022

Biography

Language - English
Jurisdiction - England & Wales

Duncan Stiles is a hugely experienced senior corporate partner at Stephenson Harwood LLP who counsels a diverse international client base on strategic investments into the UK and on complex cross-border M&A across the world. His practice spans a variety of sectors including technology, energy transition, industrials, professional services and real estate.  

Duncan’s practice is particularly focussed on the United States. He leads Stephenson Harwood’s US Area of Focus and has overall responsibility for the firm’s relationships with US law firms and US strategy. He regularly acts for US corporates, including financial sponsor backed portfolio companies, on their European investments. Recent examples include deals for KKR backed Industrial Physics, Intercontinental Exchange, Kroll, Corporation Service Company, Scrub Daddy and Illuma Holdings. He also regularly “quarterbacks” advice for US law firms needing support across a variety of European jurisdictions. 

His reputation for delivering results on complex cross border transactions makes him a sought-after adviser for a range of international clients. He recently advised China’s Citic Europe Holdings on the sale of Invia Group (a leading online travel agency); counselled the Dutch Denkavit Group on its UK market entry acquisition of the Volac Milk Replacer business and led on Spanish Grupo Amper’s sale of Energy Computer Systems (advanced distribution management systems software) to QEI Automation Solutions. All Duncan’s international clients appreciate his ability to explain unfamiliar UK legal requirements and concepts in a commercially accessible and understandable way.

Experience

  • CITIC – Invia Group

    Advised Citic Europe Holdings A.S. on the €250 million sale of Invia Group.

  • Industrial Physics – Torus Manufacturing and MP Calibration Services Limited

    Advised KKR Portfolio Company Industrial Physics on the acquisition of Torus Manufacturing Limited and MP Calibration Services Limited. 

  • Illuma Holdings – Anitox

    Advised Illuma Alliance on its acquisition of Anitox Group.

  • Amper SA – ECS

    Advised Grupo Amper on the sale of Energy Computer Systems to QEI Automation Solutions.

  • Scrub Daddy – Evo

    Advised Scrub Daddy Inc on its merger with Evo Lifestyle Products/Scrub Daddy BV

  • Denkavit – Volac

    Advised the Denkavit Group on its acquisition of the Volac Group's Milk Replacer business.

  • Kroll – Redscan

    Advised Kroll, a global provider of services and digital products related to governance, risk and transparency, on its acquisition of Redscan, a UK-based cyber security services provider.

  • Intercontinental Exchange – Urgentem

    Advised Intercontinental Exchange, Inc on its acquisition of Urgentem, a provider of emissions data and climate risk analytics to the finance industry.

  • Protos Holdings – Squad Security

    Advised Protos Security international on its acquisition of the entire issued share capital of Squad Security Limited and Squad Security Europe Limited from M. Sapracoine Holdings LLC.

  • Covanta (now Encyclis in the UK) - Green Investment Group

    Advised Covanta on its strategic partnership with Green Investment Group/Macquarie to develop, fund and own energy-from-waste projects in the UK and Ireland.

专业领域

新闻与洞察

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Stephenson Harwood attending IBA Annual Conference 2025 in Toronto

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Corporate

Stephenson Harwood advises Citic Europe Holdings on sale of Invia Group

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Stephenson Harwood attending IBA Annual Conference 2024 in Mexico City

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Stephenson Harwood advises Iluma Alliance on the acquisition of Anitox Group

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Corporate

Stephenson Harwood advises Industrial Physics on acquisition of Torus Technology Group

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Corporate

Stephenson Harwood advises on the Denkavit Group's acquisition of Volac's Milk Replacer business

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Stephenson Harwood attending IBA Annual Conference 2023 in Paris

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