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We have a long and extensive track record of advising clients on merger control requirements and representing them in UK, EU and international merger control proceedings. We have an award-winning UK merger control practice, having won Legal Business Awards Competition Team of the year 2020 for steering a complex digital merger to an unexpected phase one unconditional clearance. We are strategic advisors, combining  quality advocacy and practical project management of all regulatory filings – merger control, FDI and regulatory. We cooperate closely with our CMS M&A team which consistently advises on the greatest number of M&A transactions of all law firms in Europe. In addition, many clients entrust us directly with their merger control cases. We have represented clients successfully in numerous landmark merger cases in the UK and internationally, often shaping major sectors of the economy.

Merger control and FDI is where our exceptionally wide footprint is particularly valuable with 225 CMS competition lawyers across CMS offices in Europe, Asia, Africa and South America. This, together with a very extensive network of long-established contacts across all other relevant countries worldwide (e.g., via the World Law Group), allows us to offer a one-stop shop solution for all of our clients’ transactions. 

On a daily basis we steer our clients through any “gun-jumping” pitfalls in the context of the due diligence process and the preparatory phase between signing and closing. And we set up the necessary safety mechanisms to ensure compliance with competition laws during the transaction process (clean teams, data rooms etc.). 

We also represent the interests of third parties to achieve their strategic goals concerning mergers between other industry players.

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Türkiye Updates Merger Control Rules to Reflect Economic Reality

Türkiye Updates Merger Control Rules to Reflect Economic Reality

23 Feb 2026 6 min read
Regulation nation? UK regulators in 2026

Regulation nation? UK regulators in 2026

23 Jan 2026 3 min read
UK competition law enforcement: a multi-regulator perspective

UK competition law enforcement: a multi-regulator perspective

08 Oct 2025 1 min read
Government confirms reform to media ownership and merger control rules

Government confirms reform to media ownership and merger control rules

14 Jul 2025 5 min read
Focus on the future: CMA's pro-growth strategic priorities for 2025-6

Focus on the future: CMA's pro-growth strategic priorities for 2025-6

07 Apr 2025 6 min read
More changes ahead for the UK media mergers regime

More changes ahead for the UK media mergers regime

21 Mar 2025 13 min read
Violation of EU competition law: Commission fines Mondelez EUR 337.5m for cross-border trade restrictions

Violation of EU competition law: Commission fines Mondelez EUR 337.5m for cross-border trade restrictions

31 May 2024 7 min read
CMS Emerging Europe M&A Report 2023/2024

CMS Emerging Europe M&A Report 2023/2024

26 Jan 2024 3 min read

Events

  • United Kingdom
    19 Aug 2026

    The equIP Collective | From Setbacks to Scale-ups: Navigating Start-up Challenges

  • United Kingdom
    07 Sep 2026

    CMS Skills For Future Facing Teams: Connecting across generations

  • United Kingdom
    10 Sep 2026

    IP Insights webinar series 2026 - Autumn

  • United Kingdom
    11 Sep 2026

    The equIP Collective | Glasgow to Global: Expanding into International Markets

  • United Kingdom
    16 Sep 2026

    Anatomy of an Investigation

  • United Kingdom
    17 Sep 2026

    ERA Ready?

  • United Kingdom
    30 Sep 2026

    On the Pulse Webinar Series 2026 - Autumn

  • United Kingdom
    05 Oct 2026

    CMS Skills For Future Facing Teams: LaughABLE - achieving absurdly great results in challenging times

  • United Kingdom
    06 Oct 2026

    Powering CEE's Energy Future: Policy, Investment, Innovation

  • United Kingdom
    19 Oct 2026

    CMS Skills For Future Facing Teams: Navigating change in the workplace

  • United Kingdom
    09 Nov 2026

    CMS Skills For Future Facing Teams: Say it with stories

  • United Kingdom
    23 Nov 2026

    CMS Skills For Future Facing Teams: From fixed thinkers to growth thinkers

  • United Kingdom
    07 Dec 2026

    CMS Skills For Future Facing Teams: The negotiator’s toolkit

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We provide future-facing legal advice to help your organisation thrive. Combining local market knowledge and a global perspective, and with lawyers in locations worldwide, your organisation benefits from the expertise it needs, even across borders.

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