Clyde & Co
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Clyde & Co has claimed a spot in the data protection market through expert handling of multijurisdictional privacy mandates, with standout skills in global compliance programmes and data governance. A seasoned quartet leads the team: Mark Williamson, a specialist in regulatory advice; Isabel Simpson, noted for her dynamic approach to emerging digital legal landscapes; cybersecurity expert Ian Birdsey; and Helen Bourne, who oversees regulatory investigations and enforcement proceedings. Seaton Gordon is also recommended for data incident response.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- We work most closely with Helen Bourne and Ian Birdsey, both of whom are recognized leaders in the cyber field. What distinguishes them is the combination of deep technical expertise with genuine agility and flexibility — they are willing and able to meet clients at their most critical moments, often during live cyber incidents when the pressure is at its highest and decisions need to be made quickly. In those moments, Helen and Ian bring something that goes beyond legal advice: they reassure, guide, and help clients navigate the crisis with a steady hand. They understand that incident response is as much about clear communication and judgment under pressure as it is about technical legal analysis, and they excel at both. Their availability and responsiveness in those critical windows is genuinely exceptional, and it is one of the main reasons we continue to instruct them.
- Clyde & Co has a truly global presence, which is essential when providing cyber support to our insureds in a timely 24/7 manner, no matter the geography or time zone.
Key clients
- UCL
- B&Q
Work highlights
Advising University College London on its role as curator of the World Health Organisation’s global tuberculosis data repository.