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Apart from offering expert legal consultancy for local jurisdictions, CMS partners up with you to effectively navigate the complexities of global business and legal environments.

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CMS lawyers can provide future-facing advice for your business across a variety of specialisms and industries, worldwide.

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Offices
Global Reach

Apart from offering expert legal consultancy for local jurisdictions, CMS partners up with you to effectively navigate the complexities of global business and legal environments.

Explore our reach
Insights
About CMS
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To understand adtech, you need your lawyers to have market-leading understanding of both technology and advertising and we can offer this expertise. We live and breathe technology with a large team of technology lawyers in the top tier of the legal directories. We also have a highly respected advertising practice, advising brands, traditional and digital advertising agencies, networks and publishers. Beyond this, we have a taskforce of experts from across our technology and advertising practices that are fully immersed in the adtech market specifically. They understand the key issues impacting the sector and advise every day on innovative solutions.

Our top ranked, commercial, corporate disputes and IP lawyers advise a number of key players in the sector, across a number of different stages in the corporate lifecycle, from start-up through scale-up to truly global. We work across all verticals, whether technology platforms, digital agencies, brands or publishers/media owners. This broad experience means that we have a holistic perspective on the market – we understand the key issues impacting the sector from both buy-side and sell-side, allowing us to provide targeted, commercially relevant, practical advice in context.

We have a wealth of experience in all of the above areas. Recent experience includes:

  • drafting and negotiating a complex global media buying deal for a market-leading global brand with a particular focus on ensuring fit-for-purpose terms for the programmatic world;
  • advising a global consumer goods leader on a sophisticated services contract with a key provider of an adtech solution that underpins a new global consumer insight data management platform containing over 1 billion records;
  • advising a leading agency group on several strategic M&A transactions with a total value exceeding £500m;
  • advising companies across the sector, including publishers, agencies and brands on data compliance strategies both relating to the implementation of GDPR and also broader data challenges (whether relating to commercialising existing data through advanced monetisation strategies or considering technical challenges involved in applying the ePrivacy Directive and new PEC regulations to the adtech stack effectively); and
  • advising an adtech scale-up on managing and successfully resolving a business-critical dispute with a leading ad network.

adtekr

Our adtekr insights bring the adtech message to those who may not be technically-minded; to those who work in the marketing sector but are not marketers; and to those who are looking for a guiding light to help them through the jargon. 

You can also visit the adtekr page for more adtekr content.

Events

  • United Kingdom
    18 Mar 2026

    Green claims in focus

  • United Kingdom
    19 Mar 2026

    CMS Nordic Health Summit

  • United Kingdom
    19 Mar 2026

    Delivering Offshore Wind at Scale

  • United Kingdom
    19 Mar 2026

    CMS Scotland Brand Forum

  • United Kingdom
    23 Mar 2026

    Skills for Future Facing Teams: Creating a team culture of coaching and feedback

  • United Kingdom
    23 Mar 2026

    CMS at PTMG Spring 2026

  • United Kingdom
    23 Mar 2026

    ESG: Breaking Down the Buzzword

  • United Kingdom
    08 Apr 2026

    CMS at Fordham IP & Policy Conference

  • United Kingdom
    21 Apr 2026

    On the Pulse webinar series 2026 - Spring/Summer

  • United Kingdom
    21 Apr 2026

    Future of Renewables Spring Seminar

  • United Kingdom
    28 Apr 2026

    Strategic expansion to India: A new chapter for UK higher education

  • United Kingdom
    28 Apr 2026

    IP Insights webinar series 2026

  • United Kingdom
    28 Apr 2026

    Future of Renewables Spring Seminars

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