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Mayer Brown International LLP

Living Wage
Work 020 3130 3000
Fax 020 3130 3001

Mark Prinsley

Work +44 20 3130 3900
Mayer Brown

Work Department

Intellectual Property


Mark Prinsley concentrates on non contentious intellectual property including, in particular, IT project and outsourcing work. Mark is head of the Intellectual Property & IT group in London as well as the outsourcing practice. His practice involves acting for customers at all stages of outsourcing transactions. Recent outsourcing projects have included acting for a commodity exchange in the outsourcing of its IT functions; a telecommunications company in IT outsourcing; a global bank in the outsourcing of its human resources functions; a global chemicals company in outsourcing its Finance and Accounting functions; a global automotive company in the outsourcing of human resources functions; and a consumer goods company in Finance and Accounting outsourcing. Mark also works on the technology aspects of corporate transactions and advises online gambling businesses including, in particular, in relation to international activities of UK operators.


University of Oxford, Brasenose College 1978 Law Degree

London: Corporate and commercial

Commercial contracts

Within: Commercial contracts

Mayer Brown International LLP specialises in complex and multi-jurisdictional outsourcing transactions for clients in areas including information technology, finance, human resources, procurement and telecoms. The firm is particularly experienced in handling domestic and international sourcing contracts in the financial services sectors. Mark Prinsley is head of the intellectual property and IT group, as well as the technology transactions practice. He leads the team with Andrew Stewart, who focuses on complex commercial transactions.

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London: TMT (technology, media and telecoms)


Within: Fintech

Mayer Brown International LLP's fintech group acts for global financial institutions, asset managers, technology companies and start-ups and has expertise advising on cloud-related outsourcing agreements, blockchain projects and smart contracts, data protection and intellectual property risks in the development of new platforms and services. The firm generally has strong corporate practices, and in the fintech space the team has experience advising on significant investment transaction, acquisitions and IPOs. Mark Prinsley assists clients across the spectrum of fintech with IP, outsourcing, cyber security and data privacy matters.

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IT and telecoms

Within: IT and telecoms

Mayer Brown International LLP is recognised for its expertise in IT outsourcings, insurance technology transactions and cybersecurity and data protection advice; it also has particular knowledge of the financial services sector. Outsourcing specialist Mark Prinsley, corporate partner Richard Page and Andrew Stewart, who assists suppliers and customers with commercial IT transactions, jointly lead the practice, while Oliver Yaros focuses on fintech and digital transformation projects.

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