Cartels & Illegal Price Fixing

Allegations of cartel behaviour, price fixing, market sharing, bid rigging or unlawful information exchange can pose serious risks to any business.  With the possibility of multimillion pound fines, criminal prosecution, director disqualification and devastating reputational harm, early specialist advice is essential.

 

Our Competition & Regulatory Team can provide clear, strategic guidance for businesses, directors and senior employees, helping you respond quickly, protect your position and achieve the most favourable outcome. 

Cartels and illegal price fixing

How we help

Our lawyers act for businesses, directors, and professionals in cartel and price-fixing probes across the Competition and Markets Authority and the Serious Fraud Office.

Rapid response to investigations

We advise clients facing investigations and dawn raids by the Competition and Markets Authority (CMA) and other regulators.  We can manage onsite inspections, protect legal privilege, guide staff and reduce disruption.

Defence against cartel allegations

We represent clients accused of price fixing, bid rigging, market sharing, or exchanging commercially sensitive information.  We help shape the investigation, challenge evidence and work proactively to narrow or resolve allegations.

Leniency & immunity

Where appropriate, we advise on confidential leniency or immunity applications that can significantly reduce penalties or protect individuals from prosecution.

Protecting individuals

We support directors and senior managers facing personal exposure, including criminal investigation or director disqualification proceedings.

Speak to a member of our team

Our team support you to navigate complexity, seize opportunity and move forward with legal clarity.

Contact our Specialists

Get strategic advice from a team that knows how to protect and grow your business. Please complete our enquiry form and one of our experts will contact you by the next working day.


Alternatively, you can call us now.


Our opening hours are Monday to Friday 8am to 6pm (Excluding Public Holidays).

0370 1500 100

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Why choose Irwin Mitchell? 

  • Specialists in complex UK competition law and CMA enforcement.
  • Trusted advisers to national and international businesses across a wide range of sectors.
  • Clear, commercial advice focused on protecting your business and your people.
  • Discreet support for sensitive and highstakes investigations.
  • Integrated team covering regulatory, criminal, corporate, disputes, employment and reputation management. 

Making an enquiry

We have several ways you can contact us, either by completing our online contact form, by phone, or using our live chat. If you start your journey online, here are the first steps to working together.
  • contact us
    Complete our online form
    We need a few details to understand your situation and the kind of support you need.
  • Few questions
    We’ll contact you by phone
    On the call our experts will ask you a few more questions to make sure we connect you with the right legal advice from our team.
  • Appointment
    We arrange a full appointment
    If we're able to support you further, the next step is an appointment with one of our specialists so we can discuss everything in more detail.

Frequently Asked Questions

Here are some the questions we're frequently asked about cartel and illegal price fixing.

Our commitment to you

Our experts always start by listening, so we understand what matters most from day one.
  • 01
    Clear legal guidance

    You will always get straightforward, honest advice, with regular updates to keep you clear on the way forward.

  • 02
    Specialist knowledge

    A wide-ranging team of trusted specialists who understand what it takes to protect your future, your family or your business.

  • 03
    Your needs first

    Whether you’re navigating complex personal situations or business decisions, we take the time to understand your world and what’s at stake.

Other Business Crime services

Protect your business from reputational, regulatory, and criminal fallout with advice built for high-stakes investigations. 
  • Anti Bribery and Corruption

    Support your business and senior leadership through in-house audits, enforcement, and due diligence. We help you handle bribery risks with precision and protect your position across borders. 

  • Dawn Raids and Regulatory Interviews

    We help you prepare for unannounced inspections and navigate high-stakes interviews with regulators. From preserving legal privilege to managing internal communications, we guide your response from the outset.

  • Internal Investigations

    Get ahead of emerging risks with independent probes into whistleblowing, misconduct, and compliance breaches. We support boards and leadership teams to act responsibly and reduce exposure.

  • Regulatory and Compliance

    Understand your duties and strengthen compliance across your organisation. We help you assess policies, train staff, and respond to vulnerabilities before they become liabilities. 

Recognised for excellence. Chosen for care.

  • Legal 500 Top Tier Firm UK 2026
  • Sunday Times Best Places to Work 2025
  • ePrivateClient Top Law Firms 2025
  • Chambers High Net Worth 2025