
Clarion‘s IT practice acts for a wide range of household names, both in the UK and internationally. Members of the team act regularly on both contentious and non-contentious work, with expertise in complementary intellectual property matters; IT infrastructure is another strength of the practice. Team head Matthew Hattersley focuses on data protection and technology contracts, with particular knowledge of matters in the pharma and biotechnology sectors. David Cunningham advises clients in the private and public sector on IT infrastructure and procurement issues. Litigator Dominic Higham is also key to the practice, along with Fiona Marr.
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Key clients
- InterSystems Corporation
- Transunion International Limited (Mastercard)
- NGC Network Services Limited
- Cellhire Limited
- Card Factory plc
- Hemingways Marketing Services Limited
- Quickline Communications Limited
- Ligentia plc
- Chameleon Technology
- NGC Network Services Limited
- Principle Networks Limited
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Matthew Hattersley; Dominic Higham
Other key lawyers
David Cunningham; Fiona Marr